Melvyn Bragg and guests discuss Napoleon Bonaparte's temporary return to power in France in 1815, following his escape from exile on Elba . He arrived with fewer than a thousand men, yet three weeks later he had displaced Louis XVIII and taken charge of an army as large as any that the Allied Powers could muster individually. He saw that his best chance was to pick the Allies off one by one, starting with the Prussian and then the British/Allied armies in what is now Belgium. He appeared to be on the point of victory at Waterloo yet somehow it eluded him, and his plans were soon in tatters. His escape to America thwarted, he surrendered on 15th July and was exiled again but this time to Saint Helena. There he wrote his memoirs to help shape his legacy, while back in Europe there were still fears of his return.With Michael Rowe Reader in European History at Kings College LondonKatherine Astbury Professor of French Studies at the University of WarwickAndZack White Leverhulme Early Career Research Fellow at the University of PortsmouthProducer: Simon Tillotson In Our Time is a BBC Studios Audio production.Reading list:Katherine Astbury and Mark Philp (ed.), Napoleon's Hundred Days and the Politics of Legitimacy (Palgrave, 2018)Jeremy Black, The Battle of Waterloo: A New History (Icon Books, 2010)Michael Broers, Napoleon: The Decline and Fall of an Empire: 1811-1821 (Pegasus Books, 2022)Philip Dwyer, Citizen Emperor: Napoleon in power 1799-1815 (Bloomsbury, 2014)Charles J. Esdaile, Napoleon, France and Waterloo: The Eagle Rejected (Pen & Sword Military, 2016)Gareth Glover, Waterloo: Myth and Reality (Pen & Sword Military, 2014)Sudhir Hazareesingh, The Legend of Napoleon (Granta, 2014)John Hussey, Waterloo: The Campaign of 1815, Volume 1, From Elba to Ligny and Quatre Bras (Greenhill Books, 2017)Andrew Roberts, Napoleon the Great (Penguin Books, 2015)Brian Vick, The Congress of Vienna: Power and Politics after Napoleon (Harvard University Press, 2014) Zack White (ed.), The Sword and the Spirit: Proceedings of the first ‘War & Peace in the Age of Napoleon’ Conference (Helion and Company, 2021)

Melvyn Bragg and guests discuss Aristophanes' comedy in which the women of Athens and Sparta, led by Lysistrata, secure peace in the long-running war between them by staging a sex strike. To the men in the audience in 411BC, the idea that peace in the Peloponnesian War could be won so easily was ridiculous and the thought that their wives could have so much power over them was even more so. However Aristophanes' comedy also has the women seizing the treasure in the Acropolis that was meant to fund more fighting in an emergency, a fund the Athenians had recently had to draw on. They were in a perilous position and, much as they might laugh at Aristophanes' jokes, they knew there were real concerns about the actual cost of the war in terms of wealth and manpower. WithPaul Cartledge AG Leventis Senior Research Fellow of Clare College, University of Cambridge Sarah Miles Associate Professor in the Department of Classics and Ancient History at Durham UniversityAndJames Robson Professor of Classical Studies at the Open UniversityProducer: Simon TillotsonReading list:Aristophanes (ed. Jeffrey Henderson), Lysistrata (Oxford University Press, 1987)Aristophanes (ed. Jeffrey Henderson), Three Plays by Aristophanes: Staging Women (Routledge, 2010)Aristophanes (ed. Jeffrey Henderson), Birds; Lysistrata; Women at the Thesmophoria (Loeb Classical Library series, Harvard University Press, 2014) Aristophanes (ed. Alan H. Sommerstein), Lysistrata and Other Plays: The Acharnians; The Clouds; Lysistrata (Penguin, 2002)Aristophanes (ed. Alan H. Sommerstein), Lysistrata (Aris & Phillips, 1998)Paul Cartledge, Aristophanes and his Theatre of the Absurd (Bristol Classical Press, 1999)Kenneth Dover, Aristophanic Comedy (University of California Press, 1972)Germaine Greer, Lysistrata: The Sex Strike: After Aristophanes (Aurora Metro Press, 2000)Tony Harrison, The Common Chorus: A Version of Aristophanes’ Lysistrata (Faber & Faber, 1992)Douglas M. MacDowell, Aristophanes and Athens: An Introduction to the Plays (Oxford University Press, 1995)S. Douglas Olson (ed.), Ancient Comedy and Reception: Essays in Honor of Jeffrey Henderson (De Gruyter, 2013), especially 'She (Don't) Gotta Have It: African-American reception of Lysistrata' by Kevin WetmoreJames Robson, Aristophanes: Lysistrata, Bloomsbury ancient comedy companions (Bloomsbury, 2023)James Robson, Aristophanes: An Introduction (Duckworth, 2009)Ralph M. Rosen and Helene P. Foley (eds.), Aristophanes and Politics. New Studies (Brill, 2020) Donald Sells, Parody, Politics and the Populace in Greek Old Comedy (Bloomsbury, 2018)David Stuttard (ed.), Looking at Lysistrata: Eight Essays and a New Version of Aristophanes' Provocative Comedy (Bristol Classical Press, 2010)

Melvyn Bragg and guests discuss the Serbian-American inventor Nikola Tesla (1856-1943) and his role in the development of electrical systems towards the end of the nineteenth century. He made his name in New York in the contest over which current should flow into homes and factories in America. Some such as Edison backed direct current or DC while others such as Westinghouse backed alternating current or AC and Nikola Tesla’s invention of a motor that worked on AC swung it for the alternating system that went on to power the modern age. He ensured his reputation and ideas burnt brightly for the next decades, making him synonymous with the lone, genius inventor of the new science fiction. With Simon Schaffer Emeritus Fellow of Darwin College, University of CambridgeJill Jonnes Historian and author of “Empires of Light: Edison, Tesla, Westinghouse and the Race to Electrify the World”And Iwan Morus Professor of History at Aberystwyth UniversityProducer: Simon TillotsonReading list: W. Bernard Carlson, Tesla: Inventor of the Electrical Age (Princeton University Press, 2013)Margaret Cheney and Robert Uth, Tesla: Master of Lightning (Barnes & Noble Books, 1999) Thomas P. Hughes, Networks of Power: Electrification in Western Society, 1880-1930 (Johns Hopkins University Press, 1983)Carolyn Marvin, When Old Technologies Were New (Open University Press, 1988)Iwan Rhys Morus, Nikola Tesla and the Electrical Future (Icon Books, 2019)Iwan Rhys Morus, How The Victorians Took Us To The Moon (Icon, 2022)David E. Nye, Electrifying America: Social Meanings of a New Technology (MIT Press, 1991)John J. O’Neill, Prodigal Genius: The Life of Nikola Tesla (first published 1944; Cosimo Classics, 2006)Marc J. Seifer, Wizard: The Life and Times of Nikola Tesla, Biography of a Genius (first published 1996; Citadel Press, 2016)Nikola Tesla, My Inventions: The Autobiography of Nikola Tesla (first published 1919; Martino Fine Books, 2011)Nikola Tesla, My Inventions and other Writings (Penguin, 2012)In Our Time is a BBC Studios Audio production

Melvyn Bragg and guests discuss the Finnish epic poem that first appeared in print in 1835 in what was then the Grand Duchy of Finland, part of the Russian Empire and until recently part of Sweden. The compiler of this epic was a doctor, Elias Lönnrot (1802-1884), who had travelled the land to hear traditional poems about mythical heroes being sung in Finnish, the language of the peasantry, and writing them down in his own order to create this landmark work. In creating The Kalevala, Lönnrot helped the Finns realise they were a distinct people apart from Sweden and Russia, who deserved their own nation state and who came to demand independence, which they won in 1917. With Riitta Valijärvi Associate Professor in Finnish and Minority Languages at University College LondonThomas Dubois The Halls-Bascom Professor of Scandinavian Folklore and Literature at the University of Wisconsin-MadisonAnd Daniel Abondolo Formerly Reader in Hungarian at University College LondonProducer: Simon TillotsonReading list:Nigel Fabb, What is Poetry? Language and Memory in the Poems of the World (Cambridge University Press, 2015)Frog, Satu Grünthal, Kati Kallio and Jarkko Niemi (eds), Versification: Metrics in Practice (Finnish Literature Society, 2021)Riho Grünthal et al., ‘Drastic demographic events triggered the Uralic spread’ (Diachronica, Volume 39, Issue 4, Aug 2022)Lauri Honko (ed.), The Kalevala and the World's Traditional Epics (Finnish Literature Society, 2002)The Kalevala Heritage: Archive Recordings of Ancient Finnish Songs. Online Catalogue no. ODE8492.Mauri Kunnas, The Canine Kalevala (Otava Publishing, 1992)Kuusi, Matti, et al. (eds.), Finnish Folk Poetry: Epic (Finnish Literature Society, 1977)Elias Lönnrot (trans. John Martin Crawford), Kalevala: The Epic Poem of Finland (first published 1887; CreateSpace Independent Publishing Platform, 2017)Elias Lönnrot (trans. W. F. Kirby), Kalevala: The Land of the Heroes (first published by J.M. Dent & Sons, 1907, 2 vols.; ‎ Continuum International Publishing Group Ltd, 2000) Elias Lönnrot (trans. Francis Peabody Magoun Jr.), The Kalevala, or Poems of the Kaleva District (Harvard University Press, 1963)Elias Lönnrot (trans. Eino Friberg), The Kalevala: Epic of the Finnish People (Otava Publishing, 1988)Elias Lönnrot (trans. Keith Bosley), The Kalevala: An Epic Poem after Oral Tradition (Oxford University Press, 1989)Kirsti Mäkinen, Pirkko-Liisa Surojegin, Kaarina Brooks, An Illustrated Kalevala: Myths and Legends from Finland (Floris Books, 2020)Sami Makkonen, Kalevala: The Graphic Novel (Ablaze, 2024)Juha Y. Pentikäinen (trans. Ritva Poom), Kalevala Mythology, (Indiana University Press, 1999)Tina K. Ramnarine, Ilmatar’s Inspirations: Nationalism, Globalization and the Changing Soundscapes of Finnish Folk Music (University of Chicago Press, 2003) Jonathan Roper (ed.), Alliteration in Culture (Palgrave Macmillan, 2011), especially chapter 12 ‘Alliteration in (Balto-) Finnic Languages’ by Frog and Eila StepanovaKarl Spracklen, Metal Music and the Re-imagining of Masculinity, Place, Race and Nation (Emerald Publishing, 2020), especially the chapter ‘Finnish Folk Metal: Raising Drinking Horns in Mainstream Metal’Leea Virtanen and Thomas A. DuBois, Finnish Folklore: Studia Fennica Folkloristica 9 (Finnish Literature Society, 2000)

Melvyn Bragg and guests discuss the last pagan ruler of the Roman Empire. Fifty years after Constantine the Great converted to Christianity and introduced a policy of tolerating the faith across the empire, Julian (c.331 - 363 AD) aimed to promote paganism instead, branding Constantine the worst of all his predecessors. Julian was a philosopher-emperor in the mould of Marcus Aurelius and was noted in his lifetime for his letters and his satires, and it was his surprising success as a general in his youth in Gaul that had propelled him to power barely twenty years after a rival had slaughtered his family. Julian's pagan mission and his life were brought to a sudden end while on campaign against the Sasanian Empire in the east, but he left so much written evidence of his ideas that he remains one of the most intriguing of all the Roman emperors and a hero to the humanists of the Enlightenment. With James Corke-Webster Reader in Classics, History and Liberal Arts at King’s College, LondonLea Niccolai Assistant Professor in Classics at the University of Cambridge and Fellow and Director of Studies in Classics, Trinity College And Shaun Tougher Professor of Late Roman and Byzantine History at Cardiff UniversityProducer: Simon TillotsonReading list:Polymnia Athanassiadi, Julian: An Intellectual Biography (first published 1981; Routledge, 2014)Nicholas Baker-Brian and Shaun Tougher (eds.), Emperor and Author: The Writings of Julian the Apostate (Classical Press of Wales, 2012)Nicholas Baker-Brian and Shaun Tougher (eds.), The Sons of Constantine, AD 337-361: In the Shadows of Constantine and Julian, (Palgrave Macmillan, 2020)G.W. Bowersock, Julian the Apostate (first published 1978; Harvard University Press, 1997)Susanna Elm, Sons of Hellenism, Fathers of the Church: Emperor Julian, Gregory of Nazianzus, and the Vision of Rome (University of California Press, 2012)Ari Finkelstein, The Specter of the Jews: Emperor Julian and the Rhetoric of Ethnicity in Syrian Antioch (University of California Press, 2018)David Neal Greenwood, Julian and Christianity: Revisiting the Constantinian Revolution (Cornell University Press, 2021)Lea Niccolai, Christianity, Philosophy, and Roman Power: Constantine, Julian, and the Bishops on Exegesis and Empire (Cambridge University Press, 2023)Stefan Rebenich and Hans-Ulrich Wiemer (eds), A Companion to Julian the Apostate (Brill, 2020)Rowland Smith, Julian’s Gods: Religion and Philosophy in the Thought and Action of Julian the Apostate (Routledge, 1995)H.C. Teitler, The Last Pagan Emperor: Julian the Apostate and the War against Christianity (Oxford University Press, 2017)Shaun Tougher, Julian the Apostate (Edinburgh University Press, 2007)W. C. Wright, The Works of Emperor Julian of Rome (Loeb, 1913-23)

Melvyn Bragg and guests discuss the dance which, from when it reached Britain in the early nineteenth century, revolutionised the relationship between music, literature and people here for the next hundred years. While it may seem formal now, it was the informality and daring that drove its popularity, with couples holding each other as they spun round a room to new lighter music popularised by Johann Strauss, father and son, such as The Blue Danube. Soon the Waltz expanded the creative world in poetry, ballet, novellas and music, from the Ballets Russes of Diaghilev to Moon River and Are You Lonesome Tonight.WithSusan Jones Emeritus Professor of English Literature at the University of OxfordDerek B. Scott Professor Emeritus of Music at the University of LeedsAndTheresa Buckland Emeritus Professor of Dance History and Ethnography at the University of RoehamptonProducer: Simon TillotsonReading list: Egil Bakka, Theresa Jill Buckland, Helena Saarikoski, and Anne von Bibra Wharton (eds.), Waltzing Through Europe: Attitudes towards Couple Dances in the Long Nineteenth Century, (Open Book Publishers, 2020)Theresa Jill Buckland, ‘How the Waltz was Won: Transmutations and the Acquisition of Style in Early English Modern Ballroom Dancing. Part One: Waltzing Under Attack’ (Dance Research, 36/1, 2018); ‘Part Two: The Waltz Regained’ (Dance Research, 36/2, 2018)Theresa Jill Buckland, Society Dancing: Fashionable Bodies in England, 1870-1920 (Palgrave Macmillan, 2011)Erica Buurman, The Viennese Ballroom in the Age of Beethoven (Cambridge University Press, 2022) Paul Cooper, ‘The Waltz in England, c. 1790-1820’ (Paper presented at Early Dance Circle conference, 2018)Sherril Dodds and Susan Cook (eds.), Bodies of Sound: Studies Across Popular Dance and Music (Ashgate, 2013), especially ‘Dancing Out of Time: The Forgotten Boston of Edwardian England’ by Theresa Jill BucklandZelda Fitzgerald, Save Me the Waltz (first published 1932; Vintage Classics, 2001)Hilary French, Ballroom: A People's History of Dancing (Reaktion Books, 2022)Susan Jones, Literature, Modernism, and Dance (Oxford University Press, 2013)Mark Knowles, The Wicked Waltz and Other Scandalous Dances: Outrage at Couple Dancing in the 19th and Early 20th Centuries (McFarland, 2009)Rosamond Lehmann, Invitation to the Waltz (first published 1932; Virago, 2006)Eric McKee, Decorum of the Minuet, Delirium of the Waltz: A Study of Dance-Music Relations in 3/4 Time (Indiana University Press, 2012)Eduard Reeser, The History of the Walz (Continental Book Co., 1949)Stanley Sadie (ed.), The New Grove Dictionary of Music and Musicians, Vol. 27 (Macmillan, 2nd ed., 2000), especially ‘Waltz’ by Andrew LambDerek B. Scott, Sounds of the Metropolis: The 19th-Century Popular Music Revolution in London, New York, Paris and Vienna (Oxford University Press, 2008), especially the chapter ‘A Revolution on the Dance Floor, a Revolution in Musical Style: The Viennese Waltz’Joseph Wechsberg, The Waltz Emperors: The Life and Times and Music of the Strauss Family (Putnam, 1973)Cheryl A. Wilson, Literature and Dance in Nineteenth-century Britain (Cambridge University Press, 2009)Virginia Woolf, The Voyage Out (first published 1915; William Collins, 2013)Virginia Woolf, The Years (first published 1937; Vintage Classics, 2016)David Wyn Jones, The Strauss Dynasty and Habsburg Vienna (Cambridge University Press, 2023)Sevin H. Yaraman, Revolving Embrace: The Waltz as Sex, Steps, and Sound (Pendragon Press, 2002)Rishona Zimring, Social Dance and the Modernist Imagination in Interwar Britain (Ashgate Press, 2013)

Melvyn Bragg and guests discuss the revolt that broke out in 1871 in Algeria against French rule, spreading over hundreds of miles and countless towns and villages before being brutally suppressed. It began with the powerful Cheikh Mokrani and his family and was taken up by hundreds of thousands, becoming the last major revolt there before Algeria’s war of independence in 1954. In the wake of its swift suppression though came further waves of French migrants to settle on newly confiscated lands, themselves displaced by French defeat in Europe and the loss of Alsace-Lorraine, and their arrival only increased tensions. The Mokrani Revolt came to be seen as a watershed between earlier Ottoman rule and full national identity, an inspiration to nationalists in the 1950s.WithNatalya Benkhaled-Vince Associate Professor of the History of Modern France and the Francophone World, Fellow of University College, University of OxfordHannah-Louise Clark Senior Lecturer in Global Economic and Social History at the University of GlasgowAnd Jim House Senior Lecturer in French and Francophone History at the University of Leeds Producer: Simon Tillotson Reading list: Mahfoud Bennoune, The Making of Contemporary Algeria: 1830-1987 (Cambridge University Press, 1988)Julia Clancy-Smith, Rebel and Saint: Muslim Notables, Populist Protest, Colonial Encounters, Algeria and Tunisia 1800–1904 (University of California Press, 1994) Hannah-Louise Clark, ‘The Islamic Origins of the French Colonial Welfare State: Hospital Finance in Algeria’ (European Review of History, vol. 28, nos 5-6, 2021)Hannah-Louise Clark, ‘Of jinn theories and germ theories: translating microbes, bacteriological medicine, and Islamic law in Algeria’ (Osiris, vol. 36, 2021)Brock Cutler, Ecologies of Imperialism in Algeria (University of Nebraska Press, 2023) Didier Guignard, 1871: L’Algérie sous Séquestre (CNRS Éditions, 2023)Idir Hachi, ‘Histoire social de l’insurrection de 1871 et du procès de ses chefs (PhD diss., University of Aix-Marseille, 2017) Abdelhak Lahlou, Idir Hachi, Isabelle Guillaume, Amélie Gregório and Peter Dunwoodie, ‘L'insurrection kabyle de 1871’ (Etudes françaises volume 57, no 1, 2021)James McDougall, A History of Algeria (Cambridge University Press (2017)John Ruedy, Modern Algeria: The Origins and Development of a Nation (Indiana University Press, 2005, 2nd edition)Jennifer E Sessions, By Sword and Plow: France and the Conquest of Algeria (Cornell University Press, 2011)Samia Touati, ‘Lalla Fatma N’Soumer, 1830–1863: Spirituality, Resistance and Womanly Leadership in Colonial Algeria (Societies vol. 8, no. 4, 2018)Natalya Vince, Our Fighting Sisters: Nation, Memory and Gender in Algeria, 1954-2012 (Manchester University Press, 2015)

Melvyn Bragg and guests discuss the German physicist who, at the age of 23 and while still a student, effectively created quantum mechanics for which he later won the Nobel Prize. Werner Heisenberg made this breakthrough in a paper in 1925 when, rather than starting with an idea of where atomic particles were at any one time, he worked backwards from what he observed of atoms and their particles and the light they emitted, doing away with the idea of their continuous orbit of the nucleus and replacing this with equations. This was momentous and from this flowed what’s known as his Uncertainty Principle, the idea that, for example, you can accurately measure the position of an atomic particle or its momentum, but not both.With Fay Dowker Professor of Theoretical Physics at Imperial College LondonHarry Cliff Research Fellow in Particle Physics at the University of CambridgeAnd Frank Close Professor Emeritus of Theoretical Physics and Fellow Emeritus at Exeter College at the University of OxfordProducer: Simon TillotsonReading list:Philip Ball, Beyond Weird: Why Everything You Thought You Knew about Quantum Physics Is Different (Vintage, 2018)John Bell, ‘Against 'measurement'’ (Physics World, Vol 3, No 8, 1990)Mara Beller, Quantum Dialogue: The Making of a Revolution (University of Chicago Press, 2001)David C. Cassidy, Beyond Uncertainty: Heisenberg, Quantum Physics, And The Bomb (Bellevue Literary Press, 2010) Werner Heisenberg, Physics and Philosophy (first published 1958; Penguin Classics, 2000)Carlo Rovelli, Helgoland: The Strange and Beautiful Story of Quantum Physics (Penguin, 2022)

Melvyn Bragg and guests discuss the infamous assault of an army of the Holy Roman Emperor on the city of Rome in 1527. The troops soon broke through the walls of this holy city and, with their leader shot dead early on, they brought death and destruction to the city on an epic scale. Later writers compared it to the fall of Carthage or Jerusalem and soon the mass murder, torture, rape and looting were followed by disease which was worsened by starvation and opened graves. It has been called the end of the High Renaissance, a conflict between north and south, between Lutherans and Catholics, and a fulfilment of prophecy of divine vengeance and, perhaps more persuasively, a consequence of military leaders not feeding or paying their soldiers other than by looting. WithStephen Bowd Professor of Early Modern History at the University of EdinburghJessica Goethals Associate Professor of Italian at the University of AlabamaAnd Catherine Fletcher Professor of History at Manchester Metropolitan UniversityProducer: Simon TillotsonReading list:Stephen Bowd, Renaissance Mass Murder: Civilians and Soldiers during the Italian Wars (Oxford University Press, 2018)Benvenuto Cellini, Autobiography (Penguin Classics, 1999)Benvenuto Cellini (trans. Julia Conaway Bondanella and Peter Bondanella), My Life (Oxford University Press, 2009)André Chastel (trans. Beth Archer), The Sack of Rome 1527 (Princeton University Press, 1983Catherine Fletcher, The Beauty and the Terror: An Alternative History of the Italian Renaissance (Bodley Head, 2020)Kenneth Gouwens and Sheryl E. Reiss (eds), The Pontificate of Clement VII: History, Politics, Culture (Routledge, 2005)Francesco Guicciardini (trans. Sidney Alexander), The History of Italy (first published 1561; Princeton University Press, 2020)Luigi Guicciardini (trans. James H. McGregor), The Sack of Rome (first published 1537; Italica Press, 2008)Judith Hook, The Sack of Rome (2nd edition, Palgrave Macmillan, 2004)Geoffrey Parker, Emperor: A New Life of Charles V (Yale University Press, 2019)

Melvyn Bragg and guests discuss Lewis Carroll's book which first appeared in print in 1865 with illustrations by John Tenniel. It has since become one of the best known works in English, captivating readers who follow young Alice as she chases a white rabbit, pink eyed, in a waistcoat with pocket watch, down a rabbit hole that becomes a well and into wonderland. There she meets the Cheshire Cat, the Hatter, the March Hare, the Mock Turtle and more, all the while growing smaller and larger, finally outgrowing everyone at the trial of Who Stole the Tarts from the Queen of Hearts and exclaiming 'Who cares for you? You’re nothing but a pack of cards!'WithFranziska Kohlt Leverhulme Research Fellow in the History of Science at the University of Leeds and the Inaugural Carrollian Fellow of the University of Southern CaliforniaKiera Vaclavik Professor of Children’s Literature and Childhood Culture at Queen Mary, University of LondonAndRobert Douglas-Fairhurst Professor of English Literature at Magdalen College, University of OxfordProducer: Simon TillotsonReading list:Kate Bailey and Simon Sladen (eds), Alice: Curiouser and Curiouser (V&A Publishing, 2021)Gillian Beer, Alice in Space: The Sideways Victorian World of Lewis Carroll (University of Chicago Press, 2016)Will Brooker, Alice's Adventures: Lewis Carroll and Alice in Popular Culture (Continuum, 2004)Humphrey Carpenter, Secret Gardens: A Study of the Golden Age of Children’s Literature (first published 1985; Faber and Faber, 2009)Lewis Carroll (introduced by Martin Gardner), The Annotated Alice: The Definitive Edition, (W. W. Norton & Company, 2000)Gavin Delahunty and Christoph Benjamin Schulz (eds), Alice in Wonderland Through the Visual Arts (Tate Publishing, 2011)Robert Douglas-Fairhurst, The Story of Alice: Lewis Carroll and the Secret History of Wonderland (Harvill Secker, 2015)Colleen Hill, Fairy Tale Fashion (Yale University Press, 2016)Franziska Kohlt, Alice through the Wonderglass: The Surprising Histories of a Children's Classic (Reaktion, forthcoming 2025) Franziska Kohlt and Justine Houyaux (eds.), Alice: Through the Looking-Glass: A Companion (Peter Lang, forthcoming 2024)Charlie Lovett, Lewis Carroll: Formed by Faith (University of Virginia Press, 2022)Elizabeth Sewell, The Field of Nonsense (first published 1952; Dalkey Archive Press, 2016)Kiera Vaclavik, 'Listening to the Alice books' (Journal of Victorian Culture, Volume 26, Issue 1, January 2021)Diane Waggoner, Lewis Carroll's Photography and Modern Childhood (Princeton University Press 2020)Edward Wakeling, The Man and his Circle (IB Tauris, 2014)Edward Wakeling, The Photographs of Lewis Carroll: A Catalogue Raisonné (University of Texas Press, 2015)

Melvyn Bragg and guests discuss some of the chemical signals coursing through our bodies throughout our lives, produced in separate areas and spreading via the bloodstream. We call these 'hormones' and we produce more than 80 of them of which the best known are arguably oestrogen, testosterone, adrenalin, insulin and cortisol. On the whole hormones operate without us being immediately conscious of them as their goal is homeostasis, maintaining the levels of everything in the body as required without us having to think about them first. Their actions are vital for our health and wellbeing and influence many different aspects of the way our bodies work.WithSadaf Farooqi Professor of Metabolism and Medicine at the University of CambridgeRebecca Reynolds Professor of Metabolic Medicine at the University of EdinburghAndAndrew Bicknell Associate Professor in the School of Biological Sciences at the University of ReadingProduced by Victoria BrignellReading list:Rachel Carson, Silent Spring (first published 1962; Penguin Classics, 2000)Stephen Nussey and Saffron Whitehead, Endocrinology: An Integrated Approach (BIOS Scientific Publishers; 2001)Aylinr Y. Yilmaz, Comprehensive Introduction to Endocrinology for Novices (Independently published, 2023)

Melvyn Bragg and guests discuss the Hanseatic League or Hansa which dominated North European trade in the medieval period. With a trading network that stretched from Iceland to Novgorod via London and Bruges, these German-speaking Hansa merchants benefitted from tax exemptions and monopolies. Over time, the Hansa became immensely influential as rulers felt the need to treat it well. Kings and princes sometimes relied on loans from the Hansa to finance their wars and an embargo by the Hansa could lead to famine. Eventually, though, the Hansa went into decline with the rise in the nation state’s power, greater competition from other merchants and the development of trade across the Atlantic. WithJustyna Wubs-Mrozewicz Associate Professor of Medieval History at the University of AmsterdamGeorg Christ Senior Lecturer in Medieval and Early Modern History at the University of ManchesterAnd Sheilagh Ogilvie Chichele Professor of Economic History at All Souls College, University of OxfordProducer: Victoria BrignellReading list: James S. Amelang and Siegfried Beer, Public Power in Europe: Studies in Historical Transformations (Plus-Pisa University Press, 2006), especially `Trade and Politics in the Medieval Baltic: English Merchants and England’s Relations to the Hanseatic League 1370–1437`Nicholas R. Amor, Late Medieval Ipswich: Trade and Industry (Boydell & Brewer, 2011)B. Ayers, The German Ocean: Medieval Europe around the North Sea (Equinox, 2016)H. Brand and P. Brood, The German Hanse in Past & Present Europe: A medieval league as a model for modern interregional cooperation? (Castel International Publishers, 2007)Wendy R. Childs, The Trade and Shipping of Hull, 1300-1500 (East Yorkshire Local History Society, 1990)Alexander Cowan, Hanseatic League: Oxford Bibliographies (Oxford University Press, 2010)Philippe Dollinger, The German Hansa (Macmillan, 1970)John D. Fudge, Cargoes, Embargoes and Emissaries: The Commercial and Political Interaction of England and the German Hanse, 1450-1510 (University of Toronto Press, 1995)Donald J. Harreld, A Companion to the Hanseatic League (Brill, 2015)T.H. Lloyd, England and the German Hanse, 1157 – 1611: A Study of their Trade and Commercial Diplomacy (first published 1991; Cambridge University Press, 2002)Giampiero Nigro (ed.), Maritime networks as a factor in European integration (Fondazione Istituto Internazionale Di Storia Economica “F. Datini” Prato, University of Firenze, 2019), especially ‘Maritime Networks and Premodern Conflict Management on Multiple Levels. The Example of Danzig and the Giese Family’ by Justyna Wubs-Mrozewicz Sheilagh Ogilvie, Institutions and European Trade: Merchant Guilds, 1000-1800 (Cambridge University Press, 2011)Paul Richards (ed.), Six Essays in Hanseatic History (Poppyland Publishing, 2017)Paul Richards, King’s Lynn and The German Hanse 1250-1550: A Study in Anglo-German Medieval Trade and Politics (Poppyland Publishing, 2022)Stephen H. Rigby, The Overseas Trade of Boston, 1279-1548 (Böhlau Verlag, 2023)Justyna Wubs-Mrozewicz and Stuart Jenks (eds.), The Hanse in Medieval & Early Modern Europe (Brill, 2012) Justyna Wubs-Mrozewicz, ‘The late medieval and early modern Hanse as an institution of conflict management’ (Continuity and Change 32/1, Cambridge University Press, 2017)

Melvyn Bragg and guests discuss the idea that some kind of consciousness is present not just in our human brains but throughout the universe, right down to cells or even electrons. This is panpsychism and its proponents argue it offers a compelling alternative to those who say we are nothing but matter, like machines, and to those who say we are both matter and something else we might call soul. It is a third way. Critics argue panpsychism is implausible, an example of how not to approach this problem, yet interest has been growing widely in recent decades partly for the idea itself and partly in the broader context of understanding how consciousness arises.WithTim Crane Professor of Philosophy and Pro-Rector at the Central European University Director of Research, FWF Cluster of Excellence, Knowledge in CrisisJoanna Leidenhag, Associate Professor in Theology and Philosophy at the University of LeedsAnd Philip Goff Professor of Philosophy at Durham UniversityProducer: Simon TillotsonReading list:Anthony Freeman (ed.), Consciousness and Its Place in Nature: Does Physicalism Entail Panpsychism? (Imprint Academic, 2006), especially 'Realistic Monism' by Galen StrawsonPhilip Goff, Galileo's Error: Foundations for A New Science of Consciousness (Pantheon, 2019)Philip Goff, Why? The Purpose of the Universe (Oxford University Press, 2023) David Ray Griffin, Unsnarling the World-Knot: Consciousness, Freedom and the Mind-Body Problem (Wipf & Stock, 2008)Joanna Leidenhag, Minding Creation: Theological Panpsychism and the Doctrine of Creation (Bloomsbury, 2021)Joanna Leidenhag, ‘Panpsychism and God’ (Philosophy Compass Vol 17, Is 12, e12889) Hedda Hassel Mørch, Non-physicalist Theories of Consciousness (Cambridge University Press, 2024)Thomas Nagel, Mortal Questions (Cambridge University Press, 2012), especially the chapter 'Panpsychism'David Skrbina, Panpsychism in the West (MIT Press, 2007) James van Cleve, 'Mind-Dust or Magic? Panpsychism versus Emergence' (Philosophical Perspectives Vol. 4, Action Theory and Philosophy of Mind, Ridgeview Publishing Company, 1990)

Melvyn Bragg and guests discuss the woman who inspired one of the best known artefacts from ancient Egypt. The Bust of Nefertiti is multicoloured and symmetrical, about 49cm/18" high and, despite the missing left eye, still holds the gaze of onlookers below its tall, blue, flat topped headdress. Its discovery in 1912 in Amarna was kept quiet at first but its display in Berlin in the 1920s caused a sensation, with replicas sent out across the world. Ever since, as with Tutankhamun perhaps, the concrete facts about Nefertiti herself have barely kept up with the theories, the legends and the speculation, reinvigorated with each new discovery. WithAidan Dodson Honorary Professor of Egyptology at the University of BristolJoyce Tyldesley Professor of Egyptology at the University of ManchesterAnd Kate Spence Senior Lecturer in Egyptian Archaeology at the University of Cambridge and Fellow of Emmanuel CollegeProducer: Simon TillotsonReading list:Dorothea Arnold (ed.), The Royal Women of Amarna: Images of Beauty from Ancient Egypt (The Metropolitan Museum of Art, 1996) Norman de Garis Davies, The Rock Tombs of el-Amarna (6 vols. Egypt Exploration Society, 1903-1908) Aidan Dodson, Amarna Sunset: Nefertiti, Tutankhamun, Ay, Horemheb and the Egyptian Counter-reformation. (American University in Cairo Press, 2009 Aidan Dodson, Nefertiti, Queen and Pharaoh of Egypt: her life and afterlife (American University in Cairo Press, 2020)Aidan Dodson, Tutankhamun: King of Egypt: his life and afterlife (American University in Cairo Press, 2022)Barry Kemp, The City of Akhenaten and Nefertiti: Amarna and Its People (Thames and Hudson, 2012)Dominic Montserrat, Akhenaten: History, Fantasy and Ancient Egypt (Routledge, 2002)Friederike Seyfried (ed.), In the Light of Amarna: 100 Years of the Nefertiti Discovery (Ägyptisches Museum und Papyrussamlung Staatlich Museen zu Berlin/ Michael Imhof Verlag, 2013)Joyce Tyldesley, Tutankhamun: Pharaoh, Icon, Enigma (Headline, 2022) Joyce Tyldesley, Nefertiti’s Face: The Creation of an Icon (Profile Books, 2018)Joyce Tyldesley, Nefertiti: Egypt’s Sun Queen (Viking, 1998)

Melvyn Bragg and guests discuss Nicolas de Condorcet (1743-94), known as the Last of the Philosophes, the intellectuals in the French Enlightenment who sought to apply their learning to solving the problems of their world. He became a passionate believer in the progress of society, an advocate for equal rights for women and the abolition of the slave trade and for representative government. The French Revolution gave him a chance to advance those ideas and, while the Terror brought his life to an end, his wife Sophie de Grouchy 91764-1822) ensured his influence into the next century and beyond. WithRachel Hammersley Professor of Intellectual History at Newcastle UniversityRichard Whatmore Professor of Modern History at the University of St Andrews and Co-Director of the St Andrews Institute of Intellectual HistoryAnd Tom Hopkins Senior Teaching Associate in the Department of Politics and International Studies at the University of Cambridge and Fellow of Selwyn CollegeProducer: Simon TillotsonReading list: Keith Michael Baker, Condorcet: From Natural Philosophy to Social Mathematics (University of Chicago Press, 1974)Keith Michael Baker, ‘On Condorcet’s Sketch’ (Daedalus, summer 2004)Lorraine Daston, ‘Condorcet and the Meaning of Enlightenment’ (Proceedings of the British Academy, 2009)Dan Edelstein, The Enlightenment: A Genealogy (Chicago University Press, 2010)Mark Goldie and Robert Wokler (eds), The Cambridge History of Eighteenth-Century Political Thought (Cambridge University Press, 2006), especially ‘Ideology and the Origins of Social Science’ by Robert WoklerGary Kates, The Cercle Social, the Girondins, and the French Revolution (Princeton University Press, 1985)Steven Lukes and Nadia Urbinati (eds.), Condorcet: Political Writings (Cambridge University Press, 2009)Kathleen McCrudden Illert, A Republic of Sympathy: Sophie de Grouchy's Politics and Philosophy, 1785-1815 (Cambridge University Press, 2024)Iain McLean and Fiona Hewitt (eds.), Condorcet: Foundations of Social Choice and Political Theory (Edward Elgar Publishing Ltd, 1994)Emma Rothschild, Economic Sentiments: Adam Smith, Condorcet and the Enlightenment, (Harvard University Press, 2001)Richard Whatmore, The End of Enlightenment (Allen Lane, 2023)David Williams, Condorcet and Modernity (Cambridge University Press, 2004)

Melvyn Bragg and guests discuss one of Shakespeare’s great comedies, which plays in the space between marriage, love and desire. By convention a wedding means a happy ending and here there are three, but neither Orsino nor Viola, Olivia nor Sebastian know much of each other’s true character and even the identities of the twins Viola and Sebastian have only just been revealed to their spouses to be. These twins gain some financial security but it is unclear what precisely the older Orsino and Olivia find enduringly attractive in the adolescent objects of their love. Meanwhile their hopes and illusions are framed by the fury of Malvolio, tricked into trusting his mistress Olivia loved him and who swears an undefined revenge on all those who mocked him.With Pascale Aebischer Professor of Shakespeare and Early Modern Performance Studies at the University of ExeterMichael Dobson Professor of Shakespeare Studies and Director of the Shakespeare Institute at the University of BirminghamAnd Emma Smith Professor of Shakespeare Studies at Hertford College, University of OxfordProduced by Simon Tillotson, Victoria Brignell and Luke MulhallReading list:C.L. Barber, Shakespeare’s Festive Comedies: A Study of Dramatic Form and Its Relation to Social Custom (first published 1959; Princeton University Press, 2011)Simone Chess, ‘Queer Residue: Boy Actors’ Adult Careers in Early Modern England’ (Journal for Early Modern Cultural Studies 19.4, 2020)Callan Davies, What is a Playhouse? England at Play, 1520-1620 (Routledge, 2023)Frances E. Dolan, Twelfth Night: Language and Writing (Bloomsbury, 2014)John Drakakis (ed.), Alternative Shakespeares (Psychology Press, 2002), especially ‘Disrupting Sexual Difference: Meaning and Gender in the Comedies’ by Catherine BelseyBart van Es, Shakespeare’s Comedies: A Very Short Introduction (Oxford University Press, 2016) Sonya Freeman Loftis, Mardy Philippian and Justin P. Shaw (eds.), Inclusive Shakespeares: Identity, Pedagogy, Performance (Palgrave Macmillan, 2023), especially ‘”I am all the daughters of my father’s house, and all the brothers too”: Genderfluid Potentiality in As You Like It and Twelfth Night’ by Eric Brinkman Ezra Horbury, ‘Transgender Reassessments of the Cross-Dressed Page in Shakespeare, Philaster, and The Honest Man’s Fortune’ (Shakespeare Quarterly 73, 2022) Jean Howard, ‘Crossdressing, the theatre, and gender struggle in early modern England’ (Shakespeare Quarterly 39, 1988)Harry McCarthy, Boy Actors in Early Modern England: Skill and Stagecraft in the Theatre (Cambridge University Press, 2022)Stephen Orgel, Impersonations: The Performance of Gender in Shakespeare's England (Cambridge University Press, 1996)William Shakespeare (eds. Michael Dobson and Molly Mahood), Twelfth Night (Penguin, 2005)William Shakespeare (ed. Keir Elam), Twelfth Night (Arden Shakespeare, 2008)Emma Smith, This is Shakespeare: How to Read the World's Greatest Playwright (Pelican, 2019)Victoria Sparey, Shakespeare’s Adolescents: Age, Gender and the Body in Shakespearean Performance and Early Modern Culture (Manchester University Press, 2024)

Melvyn Bragg and guests discuss the Dutch artist famous for starry nights and sunflowers, self portraits and simple chairs. These are images known the world over, and Vincent van Gogh (1853-1890) painted them and around 900 others in the last decade of his short, brilliant life and, famously, in that lifetime he made only one recorded sale. Yet within a few decades after his death these extraordinary works, with all their colour and life, became the most desirable of all modern art, propelled in part by the story of Vincent van Gogh's struggle with mental health.With Christopher Riopelle The Neil Westreich Curator of Post 1800 Paintings at the National GalleryMartin Bailey A leading Van Gogh specialist and correspondent for The Art NewspaperAnd Frances Fowle Professor of Nineteenth Century Art at the University of Edinburgh and Senior Curator at National Galleries ScotlandProducer: Simon TillotsonReading list: Martin Bailey, Living with Vincent Van Gogh: The Homes and Landscapes that shared the Artist (White Lion Publishing, 2019)Martin Bailey, Studio of the South: Van Gogh in Provence (Frances Lincoln, 2021)Martin Bailey, Van Gogh’s Finale: Auvers and the Artist’s Rise to Fame (Frances Lincoln, 2021)Nienke Bakker and Ella Hendriks, Van Gogh and the Sunflowers: A Masterpiece Examined (Van Gogh Museum, 2019)Nienke Bakker, Emmanuel Coquery, Teio Meedendorp and Louis van Tilborgh (eds), Van Gogh in Auvers-sur-Oise: His Final Months (Thames & Hudson, 2023)Frances Fowle, Van Gogh's Twin: The Scottish Art Dealer Alexander Reid, 1854-1928 (National Galleries of Scotland, 2010) Bregje Gerritse, The Potato Eaters: Van Gogh’s First Masterpiece (Van Gogh Museum, 2021)Steven Naifeh and Gregory White Smith, Van Gogh: The Life (Random House, 2012)Leo Jansen, Hans Luijten and Nienke Bakker (eds), Vincent van Gogh: The Letters: The Complete Illustrated and Annotated Edition (Thames and Hudson Ltd, 2009)Leo Jansen, Hans Luijten and Nienke Bakker (eds), Vincent van Gogh, A Life in Letters (Thames and Hudson Ltd, 2020)Hans Luitjen, Jo van Gogh Bonger: The Woman who Made Vincent Famous Bloomsbury, 2022Louis van Tilborgh, Martin Bailey, Karen Serres (ed.), Van Gogh Self-Portraits (Courtauld Institute, 2022)Ingo F. Walther and Rainer Metzger, Van Gogh. The Complete Paintings (Taschen, 2022)

Melvyn Bragg and guests discuss the Roman emperor Tiberius. When he was born in 42BC, there was little prospect of him ever becoming Emperor of Rome. Firstly, Rome was still a Republic and there had not yet been any Emperor so that had to change and, secondly, when his stepfather Augustus became Emperor there was no precedent for who should succeed him, if anyone. It somehow fell to Tiberius to develop this Roman imperial project and by some accounts he did this well, while to others his reign was marked by cruelty and paranoia inviting comparison with Nero.WithMatthew Nicholls Senior Tutor at St. John’s College, University of OxfordShushma Malik Assistant Professor of Classics and Onassis Classics Fellow at Newnham College at the University of CambridgeAnd Catherine Steel Professor of Classics at the University of GlasgowProducer: Simon TillotsonReading list:Edward Champlin, ‘Tiberius the Wise’ (Historia: Zeitschrift für Alte Geschichte, 57.4, 2008)Alison E. Cooley, ‘From the Augustan Principate to the invention of the Age of Augustus’ (Journal of Roman Studies 109, 2019)Alison E. Cooley, The Senatus Consultum de Cn. Pisone Patre: text, translation, and commentary (Cambridge University Press, 2023)Eleanor Cowan, ‘Tiberius and Augustus in Tiberian Sources’ (Historia: Zeitschrift für Alte Geschichte, 58.4, 2009)Cassius Dio (trans. C. T. Mallan), Roman History: Books 57 and 58: The Reign of Tiberius (Oxford University Press, 2020)Rebecca Edwards, ‘Tacitus, Tiberius and Capri’ (Latomus, 70.4, 2011)A. Gibson (ed.), The Julio-Claudian Succession: Reality and Perception of the Augustan Model (Brill, 2012), especially ‘Tiberius and the invention of succession’ by C. VoutJosephus (trans. E. Mary Smallwood and G. Williamson), The Jewish War (Penguin Classics, 1981)Barbara Levick, Tiberius the Politician (Routledge, 1999)E. O’Gorman, Tacitus’ History of Political Effective Speech: Truth to Power (Bloomsbury, 2019)Velleius Paterculus (trans. J. C. Yardley and Anthony A. Barrett), Roman History: From Romulus and the Foundation of Rome to the Reign of the Emperor Tiberius (Hackett Publishing, 2011)R. Seager, Tiberius (2nd ed., Wiley-Blackwell, 2005)David Shotter, Tiberius Caesar (Routledge, 2005) Suetonius (trans. Robert Graves), The Twelve Caesars (Penguin Classics, 2007)Tacitus (trans. Michael Grant), The Annals of Imperial Rome (Penguin Classics, 2003)

Melvyn Bragg and guests discuss one of the most influential theologians of the twentieth century. Karl Barth (1886 - 1968) rejected the liberal theology of his time which, he argued, used the Bible and religion to help humans understand themselves rather than prepare them to open themselves to divine revelation. Barth's aim was to put God and especially Christ at the centre of Christianity. He was alarmed by what he saw as the dangers in a natural theology where God might be found in a rainbow or an opera by Wagner; for if you were open to finding God in German culture, you could also be open to accepting Hitler as God’s gift as many Germans did. Barth openly refused to accept Hitler's role in the Church in the 1930s on these theological grounds as well as moral, for which he was forced to leave Germany for his native Switzerland.WithStephen Plant Dean and Runcie Fellow at Trinity Hall, University of CambridgeChristiane Tietz Professor for Systematic Theology at the University of ZurichAnd Tom Greggs Marischal Professor of Divinity at the University of AberdeenProducer: Simon TillotsonReading list:Karl Barth, God Here and Now (Routledge, 2003)Karl Barth (trans. G. T. Thomson), Dogmatics in Outline (SCM Press, 1966)Eberhard Busch (trans. John Bowden), Karl Barth: His Life from Letters and Autobiographical Texts (Grand Rapids, 1994)George Hunsinger, How to Read Karl Barth: The Shape of His Theology (Oxford University Press, 1993)Joseph L. Mangina, Karl Barth: Theologian of Christian Witness (Routledge, 2004)Paul T. Nimmo, Karl Barth: A Guide for the Perplexed (Bloomsbury, 2013)Christiane Tietz, Karl Barth: A Life in Conflict (Oxford University Press, 2021)John Webster, Karl Barth: Outstanding Christian Thinkers (Continuum, 2004)

Melvyn Bragg and guests discuss Poe (1809-1849), the American author who is famous for his Gothic tales of horror, madness and the dark interiors of the mind, such as The Fall of the House of Usher and The Tell-Tale Heart. As well as tapping at our deepest fears in poems such as The Raven, Poe pioneered detective fiction with his character C. Auguste Dupin in The Murders in the Rue Morgue. After his early death, a rival rushed out a biography to try to destroy Poe's reputation but he has only become more famous over the years as a cultural icon as well as an author.WithBridget Bennett Professor of American Literature and Culture at the University of LeedsErin Forbes Senior Lecturer in 19th-century African American and US Literature at the University of BristolAndTom Wright Reader in Rhetoric at the University of SussexProducer: Simon TillotsonReading list: Peter Ackroyd, Poe: A Life Cut Short (Vintage, 2009)Amy Branam Armiento and Travis Montgomery (eds.), Poe and Women: Recognition and Revision (Lehigh University Press, 2023)Joan Dayan, Fables of Mind: An Inquiry into Poe's Fiction (Oxford University Press, 1987)Erin Forbes, ‘Edgar Allan Poe in the Great Dismal Swamp’ (Modern Philology, 2016)Kevin J. Hayes (ed.), Edgar Allan Poe in Context (Cambridge University Press, 2012) J. Gerald Kennedy and Scott Peeples (eds.), The Oxford Handbook of Edgar Allan Poe (Oxford University Press, 2018)Jill Lepore, 'The Humbug: Poe and the Economy of Horror' (The New Yorker, April 20, 2009)Toni Morrison, Playing in the Dark (Vintage, 1993)Scott Peeples and Michelle Van Parys, The Man of the Crowd: Edgar Allan Poe and the City (Princeton University Press, 2020)Edgar Allan Poe, The Portable Edgar Allan Poe (Penguin, 2006)Shawn Rosenhelm and Stephen Rachman (eds.), The American Face of Edgar Allan Poe (Johns Hopkins University Press, 1995)

Melvyn Bragg and guests discuss Marguerite, Queen of Navarre (1492 – 1549), author of the Heptaméron, a major literary landmark in the French Renaissance. Published after her death, The Heptaméron features 72 short stories, many of which explore relations between the sexes. However, Marguerite’s life was more eventful than that of many writers. Born into the French nobility, she found herself the sister of the French king when her brother Francis I came to the throne in 1515. At a time of growing religious change, Marguerite was a leading exponent of reform in the Catholic Church and translated an early work of Martin Luther into French. As the Reformation progressed, she was not afraid to take risks to protect other reformers.With Sara Barker Associate Professor of Early Modern History and Director of the Centre for the Comparative History of Print at the University of LeedsEmily Butterworth Professor of Early Modern French at King’s College LondonAnd Emma Herdman Lecturer in French at the University of St AndrewsProducer: Simon TillotsonReading list: Giovanni Boccaccio (trans. Wayne A. Rebhorn), The Decameron (Norton, 2013)Emily Butterworth, Marguerite de Navarre: A Critical Companion (Boydell &Brewer, 2022)Patricia Cholakian and Rouben Cholakian, Marguerite de Navarre: Mother of the Renaissance (Columbia University Press, 2006)Gary Ferguson, Mirroring Belief: Marguerite de Navarre’s Devotional Poetry (Edinburgh University Press, 1992)Gary Ferguson and Mary B. McKinley (eds.), A Companion to Marguerite de Navarre (Brill, 2013)Mark Greengrass, The French Reformation (John Wiley & Sons, 1987)R.J. Knecht, The Rise and Fall of Renaissance France (Fontana Press, 2008)R.J. Knecht, Renaissance Warrior and Patron: The Reign of Francis I (Cambridge University Press, 2008)John D. Lyons and Mary B. McKinley (eds.), Critical Tales: New Studies of the ‘Heptaméron’ and Early Modern Culture (University of Pennsylvania Press, 1993)Marguerite de Navarre (trans. Paul Chilton), The Heptameron (Penguin, 2004)Marguerite de Navarre (trans. Rouben Cholakian and Mary Skemp), Selected Writings: A Bilingual Edition (University of Chicago Press, 2008) Marguerite de Navarre (trans. Hilda Dale), The Coach and The Triumph of the Lamb (Elm Press, 1999)Marguerite de Navarre (trans. Hilda Dale), The Prisons (Whiteknights, 1989)Marguerite de Navarre (ed. Gisèle Mathieu-Castellani), L’Heptaméron (Libraririe générale française, 1999)Jonathan A. Reid, King’s Sister – Queen of Dissent: Marguerite of Navarre (1492-1549) and her Evangelical Network (Brill, 2009)Paula Sommers, ‘The Mirror and its Reflections: Marguerite de Navarre’s Biblical Feminism’ (Tulsa Studies in Women’s Literature, 5, 1986)Kathleen Wellman, Queens and Mistresses of Renaissance France (Yale University Press, 2013)

Melvyn Bragg and guests discuss the most influential work of Thorstein Veblen (1857-1929). In 1899, during America’s Gilded Age, Veblen wrote The Theory of the Leisure Class as a reminder that all that glisters is not gold. He picked on traits of the waning landed class of Americans and showed how the new moneyed class was adopting these in ways that led to greater waste throughout society. He called these conspicuous leisure and conspicuous consumption and he developed a critique of a system that favoured profits for owners without regard to social good. The Theory of the Leisure Class was a best seller and funded Veblen for the rest of his life, and his ideas influenced the New Deal of the 1930s. Since then, an item that becomes more desirable as it becomes more expensive is known as a Veblen good. With Matthew Watson Professor of Political Economy at the University of WarwickBill Waller Professor of Economics at Hobart and William Smith Colleges, New YorkAndMary Wrenn Senior Lecturer in Economics at the University of the West of EnglandProducer: Simon TillotsonReading list:Charles Camic, Veblen: The Making of an Economist who Unmade Economics (Harvard University Press, 2021)John P. Diggins, Thorstein Veblen: Theorist of the Leisure Class (Princeton University Press, 1999)John P. Diggins, The Bard of Savagery: Thorstein Veblen and Modern Social Theory (Seabury Press, 1978)John Kenneth Galbraith, The Affluent Society (Penguin, 1999) Robert Heilbroner, The Worldly Philosophers: The Lives, Times and Ideas of the Great Economic Thinkers (Penguin, 2000), particularly the chapter ‘The Savage Society of Thorstein Veblen’Ken McCormick, Veblen in Plain English: A Complete Introduction to Thorstein Veblen’s Economics (Cambria Press, 2006)Sidney Plotkin and Rick Tilman, The Political Ideas of Thorstein Veblen (Yale University Press, 2012)Juliet B. Schor, The Overspent American: Why We Want What We Don't Need (William Morrow & Company, 1999)Juliet B. Schor, Born to Buy: The Commercialized Child and the New Consumer Culture (Simon & Schuster Ltd, 2005)Thorstein Veblen, The Theory of the Leisure Class (first published 1899; Oxford University Press, 2009)Thorstein Veblen, The Theory of Business Enterprise (first published 1904; Legare Street Press, 2022)Thorstein Veblen, The Higher Learning in America (first published 2018; Johns Hopkins University Press, 2015) Thorstein Veblen, Absentee Ownership and Business Enterprise in Recent Times: The Case of America (first published 1923; Routledge, 2017)Thorstein Veblen, Conspicuous Consumption (Penguin, 2005)Thorstein Veblen, The Complete Works (Musaicum Books, 2017)Charles J. Whalen (ed.), Institutional Economics: Perspective and Methods in Pursuit of a Better World (Routledge, 2021)

Melvyn Bragg and guests discuss the North African privateers who, until their demise in the nineteenth century, were a source of great pride and wealth in their home ports, where they sold the people and goods they’d seized from Christian European ships and coastal towns. Nominally, these corsairs were from Algiers, Tunis or Tripoli, outreaches of the Ottoman empire, or Salé in neighbouring Morocco, but often their Turkish or Arabic names concealed their European birth. Murad Reis the Younger, for example, who sacked Baltimore in 1631, was the Dutchman Jan Janszoon who also had a base on Lundy in the Bristol Channel. While the European crowns negotiated treaties to try to manage relations with the corsairs, they commonly viewed these sailors as pirates who were barely tolerated and, as soon as France, Britain, Spain and later America developed enough sea power, their ships and bases were destroyed. WithJoanna Nolan Research Associate at SOAS, University of LondonClaire Norton Former Associate Professor of History at St Mary’s University, TwickenhamAnd Michael Talbot Associate Professor in the History of the Ottoman Empire and the Modern Middle East at the University of GreenwichProducer: Simon Tillotson Reading list:Robert C. Davis, Christian Slaves, Muslim Masters: White Slavery in the Mediterranean, the Barbary Coast and Italy, 1500-1800 (Palgrave Macmillan, 2004)Peter Earle, Corsairs of Malta and Barbary (Sidgwick and Jackson, 1970) Des Ekin, The Stolen Village: Baltimore and the Barbary Pirates (O’Brien Press, 2008)Jacques Heers, The Barbary Corsairs: Warfare in the Mediterranean, 1450-1580 (Skyhorse Publishing, 2018)Colin Heywood, The Ottoman World: The Mediterranean and North Africa, 1660-1760 (Routledge, 2019)Alan Jamieson, Lords of the Sea: A History of the Barbary Corsairs (Reaktion Books, 2013)Julie Kalman, The Kings of Algiers: How Two Jewish Families Shaped the Mediterranean World during the Napoleonic Wars and Beyond (Princeton University Press, 2023)Stanley Lane-Poole, The Story of the Barbary Corsairs (T. Unwin, 1890)Sally Magnusson, The Sealwoman’s Gift (A novel - Two Roads, 2018)Philip Mansel, Levant: Splendour and Catastrophe on the Mediterranean (John Murray, 2010)Nabil Matar, Turks, Moors and Englishmen in the Age of Discovery (Columbia University Press, 1999)Nabil Matar, Britain and Barbary, 1589-1689 (University Press of Florida, 2005)Giles Milton, White Gold: The Extraordinary Story of Thomas Pellow and North Africa’s One Million European Slaves (Hodder and Stoughton, 2004)Claire Norton (ed.), Conversion and Islam in the Early Modern Mediterranean: The Lure of the Other (Routledge, 2017)Claire Norton, ‘Lust, Greed, Torture and Identity: Narrations of Conversion and the Creation of the Early Modern 'Renegade' (Comparative Studies of South Asia, Africa and the Middle East 29/2, 2009) Daniel Panzac, The Barbary Corsairs: The End of a Legend, 1800-1820 (Brill, 2005)Rafael Sabatini, The Sea Hawk (a novel - Vintage Books, 2011)Adrian Tinniswood, Pirates of Barbary: Corsairs, Conquests and Captivity in the 17th century (Vintage Books, 2010)D. Vitkus (ed.), Piracy, Slavery and Redemption: Barbary Captivity Narratives from Early Modern England (Columbia University Press, 2001)J. M. White, Piracy and Law in the Ottoman Mediterranean (Stanford University Press, 2018)

Melvyn Bragg and guests discuss Aristotle's ideas on what happiness means and how to live a good life. Aristotle (384-322BC) explored these almost two and a half thousand years ago in what became known as his Nicomachean Ethics. His audience then were the elite in Athens as, he argued, if they knew how to live their lives well then they could better rule the lives of others. While circumstances and values have changed across the centuries, Aristotle's approach to answering those questions has fascinated philosophers ever since and continues to do so.With Angie Hobbs Professor of the Public Understanding of Philosophy at the University of SheffieldRoger Crisp Director of the Oxford Uehiro Centre for Practical Ethics, Professor of Moral Philosophy and Tutor in Philosophy at St Anne’s College, University of OxfordAnd Sophia Connell Senior Lecturer in Philosophy at Birkbeck, University of LondonProducer: Simon TillotsonReading list:J.L. Ackrill, Aristotle the Philosopher (Oxford University Press, 1981)Aristotle (ed. and trans. Roger Crisp), Nicomachean Ethics (Cambridge University Press, 2000)Aristotle (trans. Terence Irwin), Nicomachean Ethics (Hackett Publishing Co., 2019) Aristotle (trans. H. Rackham), Nicomachean Ethics: Loeb Classical Library (William Heinemann Ltd, 1962)Jonathan Barnes, Aristotle: Past Masters series (Oxford University Press, 1982) Gerard J. Hughes, Routledge Guidebook to Aristotle’s Nicomachean Ethics (Routledge, 2013)Richard Kraut (ed.), The Blackwell Guide to Aristotle's Nicomachean Ethics (Wiley-Blackwell, 2005)Michael Pakaluk, Aristotle's Nicomachean Ethics: An Introduction (Cambridge University Press, 2005)A. Rorty (ed.), Essays on Aristotle's Ethics (University of California Press, 1981) Nancy Sherman, The Fabric of Character: Aristotle's Theory of Virtue (Clarendon Press, 1989)J.O. Urmson, Aristotle’s Ethics (John Wiley & Sons, 1988)

Melvyn Bragg and guests discuss Emile Zola's greatest literary success, his thirteenth novel in a series exploring the extended Rougon-Macquart family. The relative here is Etienne Lantier, already known to Zola’s readers as one of the blighted branch of the family tree and his story is set in Northern France. It opens with Etienne trudging towards a coalmine at night seeking work, and soon he is caught up in a bleak world in which starving families struggle and then strike, as they try to hold on to the last scraps of their humanity and the hope of change. With Susan Harrow Ashley Watkins Chair of French at the University of Bristol Kate Griffiths Professor in French and Translation at Cardiff University And Edmund Birch Lecturer in French Literature and Director of Studies at Churchill College & Selwyn College, University of Cambridge Producer: Simon Tillotson Reading list: David Baguley, Naturalist Fiction: The Entropic Vision (Cambridge University Press, 1990) William Burgwinkle, Nicholas Hammond and Emma Wilson (eds.), The Cambridge History of French Literature (Cambridge University Press, 2011), particularly ‘Naturalism’ by Nicholas White Kate Griffiths, Emile Zola and the Artistry of Adaptation (Legenda, 2009) Kate Griffiths and Andrew Watts, Adapting Nineteenth-Century France: Literature in Film, Theatre, Television, Radio, and Print (University of Wales Press, 2013) Anna Gural-Migdal and Robert Singer (eds.), Zola and Film: Essays in the Art of Adaptation (McFarland & Co., 2005) Susan Harrow, Zola, The Body Modern: Pressures and Prospects of Representation (Legenda, 2010) F. W. J. Hemmings, The Life and Times of Emile Zola (first published 1977; Bloomsbury, 2013) William Dean Howells, Emile Zola (The Floating Press, 2018) Lida Maxwell, Public Trials: Burke, Zola, Arendt, and the Politics of Lost Causes (Oxford University Press, 2014) Brian Nelson, Emile Zola: A Very Short Introduction (Oxford University Press, 2020) Brian Nelson (ed.), The Cambridge Companion to Emile Zola (Cambridge University Press, 2007) Sandy Petrey, Realism and Revolution: Balzac, Stendhal, Zola, and the Performances of History (Cornell University Press, 1988) Arthur Rose, ‘Coal politics: receiving Emile Zola's Germinal’ (Modern & contemporary France, 2021, Vol.29, 2) Philip D. Walker, Emile Zola (Routledge, 1969) Emile Zola (trans. Peter Collier), Germinal (Oxford University Press, 1993) Emile Zola (trans. Roger Pearson), Germinal (Penguin Classics, 2004)

Melvyn Bragg and guests discuss the anchoress and mystic who, in the late fourteenth century, wrote about her visions of Christ suffering, in a work since known as Revelations of Divine Love. She is probably the first named woman writer in English, even if questions about her name and life remain open. Her account is an exploration of the meaning of her visions and is vivid and bold, both in its imagery and theology. From her confined cell in a Norwich parish church, in a land beset with plague, she dealt with the nature of sin and with the feminine side of God, and shared the message she received that God is love and, famously, that all shall be well and all manner of things shall be well. With Katherine Lewis Professor of Medieval History at the University of Huddersfield Philip Sheldrake Professor of Christian Spirituality at the Oblate School of Theology, Texas and Senior Research Associate of the Von Hugel Institute, University of Cambridge And Laura Kalas Senior Lecturer in Medieval English Literature at Swansea University Producer: Simon Tillotson Reading list: John H. Arnold and Katherine Lewis (eds.), A Companion to the Book of Margery Kempe (D.S. Brewer, 2004) Ritamary Bradley, Julian’s Way: A Practical Commentary on Julian of Norwich (Harper Collins, 1992) E. Colledge and J. Walsh (eds.), Julian of Norwich: Showings (Classics of Western Spirituality series, Paulist Press, 1978) Liz Herbert McAvoy (ed.), A Companion to Julian of Norwich (D.S. Brewer, 2008) Liz Herbert McAvoy, Authority and the Female Body in the Writings of Julian of Norwich and Margery Kempe (D.S. Brewer, 2004) Grace Jantzen, Julian of Norwich: Mystic and Theologian (new edition, Paulist Press, 2010) Julian of Norwich (trans. Barry Windeatt), Revelations of Divine Love (Oxford World's Classics, 2015) Julian of Norwich (ed. Nicholas Watson and Jacqueline Jenkins), The Writings of Julian of Norwich: A Vision Showed to a Devout Woman and a Revelation of Love, (Brepols, 2006) Laura Kalas, Margery Kempe’s Spiritual Medicine: Suffering, Transformation and the Life-Course (D.S. Brewer, 2020) Laura Kalas and Laura Varnam (eds.), Encountering the Book of Margery Kempe (Manchester University Press, 2021) Laura Kalas and Roberta Magnani (eds.), Women in Christianity in the Medieval Age: 1000-1500 (Routledge, forthcoming 2024) Ken Leech and Benedicta Ward (ed.), Julian the Solitary (SLG, 1998) Denise Nowakowski Baker and Sarah Salih (ed.), Julian of Norwich’s Legacy (Palgrave Macmillan, 2009) Joan M. Nuth, Wisdom’s Daughter: The Theology of Julian of Norwich (Crossroad Publishing, 1999) Philip Sheldrake, Julian of Norwich: “In God’s Sight”: Her Theology in Context (Wiley-Blackwell, 2019) E. Spearing (ed.), Julian of Norwich: Revelations of Divine Love (Penguin Books, 1998) Denys Turner, Julian of Norwich, Theologian (Yale University Press, 2011) Wolfgang Riehle, The Secret Within: Hermits, Recluses and Spiritual Outsiders in Medieval England (Cornell University Press, 2014) Caroline Walker Bynum, Jesus as Mother: Studies in the Spirituality of the High Middle Ages (University of California Press, 1982) Ann Warren, Anchorites and their Patrons in Medieval England (University of California Press, 1985) Hugh White (trans.), Ancrene Wisse: Guide for Anchoresses (Penguin Classics, 1993)

Melvyn Bragg and guests discuss Alexander Hamilton, James Madison and John Jay's essays written in 1787/8 in support of the new US Constitution. They published these anonymously in New York as 'Publius' but, when it became known that Hamilton and Madison were the main authors, the essays took on a new significance for all states. As those two men played a major part in drafting the Constitution itself, their essays have since informed debate over what the authors of that Constitution truly intended. To some, the essays have proved to be America’s greatest contribution to political thought. With Frank Cogliano Professor of American History at the University of Edinburgh and Interim Saunders Director of the International Centre for Jefferson Studies at Monticello Kathleen Burk Professor Emerita of Modern and Contemporary History at University College London And Nicholas Guyatt Professor of North American History at the University of Cambridge Producer: Simon Tillotson Reading list: Bernard Bailyn, To Begin the World Anew: The Genius and Ambiguities of the American Founders (Knopf, 2003) Mary Sarah Bilder, Madison’s Hand: Revising the Constitutional Convention (Harvard University Press, 2015) Noah Feldman, The Three Lives of James Madison: Genius, Partisan, President (Random House, 2017) Jonathan Gienapp, The Second Creation: Fixing the American Constitution in the Founding Era (Harvard University Press, 2018) Alexander Hamilton, John Jay, James Madison (eds. George W. Carey and James McClellan), The Federalist: The Gideon Edition (Liberty Fund, 2001) Alison L. LaCroix, The Ideological Origins of American Federalism (Harvard University Press, 2010) James Madison, Alexander Hamilton and John Jay, The Federalist Papers (Penguin, 1987) Pauline Maier, Ratification: The People Debate the Constitution, 1787-1788 (Simon and Schuster, 2010) Michael I. Meyerson, Liberty's Blueprint: How Madison and Hamilton Wrote the Federalist Papers, Defined the Constitution, and Made Democracy Safe for the World (Basic Books, 2008) Jack Rakove, Original Meanings: Politics and Ideas in the Making of the Constitution (Knopf, 1996) Jack N. Rakove and Colleen A. Sheehan, The Cambridge Companion to The Federalist (Cambridge University Press, 2020)

Melvyn Bragg and guests discuss the tiny drifting organisms in the oceans that sustain the food chain for all the lifeforms in the water and so for the billions of people who, in turn, depend on the seas for their diet. In Earth's development, the plant-like ones among them, the phytoplankton, produced so much oxygen through photosynthesis that around half the oxygen we breathe today originated there. And each day as the sun rises, the animal ones, the zooplankton, sink to the depths of the seas to avoid predators in such density that they appear on ship sonars like a new seabed, only to rise again at night in the largest migration of life on this planet. With Carol Robinson Professor of Marine Sciences at the University of East Anglia Abigail McQuatters-Gollop Associate Professor of Marine Conservation at the University of Plymouth And Christopher Lowe Lecturer in Marine Biology at Swansea University Producer: Simon Tillotson Reading list: Juli Berwald, Spineless: The Science of Jellyfish and the Art of Growing a Backbone (Riverhead Books, 2018) Sir Alister Hardy, The Open Sea: The World of Plankton (first published 1959; Collins New Naturalist Library, 2009) Richard Kirby, Ocean Drifters: A Secret World Beneath the Waves (Studio Cactus Ltd, 2010) Robert Kunzig, Mapping the Deep: The Extraordinary Story of Ocean Science (Sort Of Books, 2000) Christian Sardet, Plankton: Wonders of the Drifting World (University of Chicago Press, 2015) Helen Scales, The Brilliant Abyss: True Tales of Exploring the Deep Sea, Discovering Hidden Life and Selling the Seabed (Bloomsbury Sigma, 2022)

In an extended version of the programme that was broadcast, Melvyn Bragg and guests discuss the influential book John Maynard Keynes wrote in 1919 after he resigned in protest from his role at the Paris Peace Conference. There the victors of World War One were deciding the fate of the defeated, especially Germany and Austria-Hungary, and Keynes wanted the world to know his view that the economic consequences would be disastrous for all. Soon Germany used his book to support their claim that the Treaty was grossly unfair, a sentiment that fed into British appeasement in the 1930s and has since prompted debate over whether Keynes had only warned of disaster or somehow contributed to it. With Margaret MacMillan Emeritus Professor of International History at the University of Oxford Michael Cox Emeritus Professor of International Relations at the London School of Economics and Founding Director of LSE IDEAS And Patricia Clavin Professor of Modern History at the University of Oxford Producer: Simon Tillotson Reading list: Manfred F. Boemeke, Gerald D. Feldman and Elisabeth Glaser (eds.), The Treaty of Versailles: A Reassessment after 75 Years (Cambridge University Press, 1998) Zachary D. Carter, The Price of Peace: Money, Democracy and the Life of John Maynard Keynes (Random House, 2020) Peter Clarke, Keynes: The Twentieth Century’s Most Influential Economist (Bloomsbury, 2009) Patricia Clavin et al (eds.), Keynes’s Economic Consequences of the Peace after 100 Years: Polemics and Policy (Cambridge University Press, 2023) Patricia Clavin, ‘Britain and the Making of Global Order after 1919: The Ben Pimlott Memorial Lecture’ (Twentieth Century British History, Vol. 31:3, 2020) Richard Davenport-Hines, Universal Man; The Seven Lives of John Maynard Keynes (William Collins, 2015) R. F. Harrod, John Maynard Keynes (first published 1951; Pelican, 1972) Jens Holscher and Matthias Klaes (eds), Keynes’s Economic Consequences of the Peace: A Reappraisal (Pickering & Chatto, 2014) John Maynard Keynes (with an introduction by Michael Cox), The Economic Consequences of the Peace (Palgrave Macmillan, 2019) Margaret MacMillan, Peacemakers: Six Months that Changed the World (John Murray Publishers, 2001) Etienne Mantoux, The Carthaginian Peace or the Economic Consequences of Mr. Keynes (Oxford University Press, 1946) D. E. Moggridge, Maynard Keynes: An Economist’s Biography (Routledge, 1992) Alan Sharp, Versailles 1919: A Centennial Perspective (Haus Publishing Ltd, 2018) Robert Skidelsky, John Maynard Keynes, 1883-1946 (Pan Macmillan, 2004) Jürgen Tampke, A Perfidious Distortion of History: The Versailles Peace Treaty and the Success of the Nazis (Scribe UK, 2017) Adam Tooze, The Deluge: The Great War, America and the Remaking of the Global Order, 1916-1931 (Penguin Books, 2015)

In the 1000th edition of In Our Time, Melvyn Bragg and guests discuss arguably the most celebrated film of the Swedish director Ingmar Bergman (1918-2007). It begins with an image that, once seen, stays with you for the rest of your life: the figure of Death playing chess with a Crusader on the rocky Swedish shore. The release of this film in 1957 brought Bergman fame around the world. We see Antonius Block, the Crusader, realising he can’t beat Death but wanting to prolong this final game for one last act, without yet knowing what that act might be. As he goes on a journey through a plague ridden world, his meeting with a family of jesters and their baby offers him some kind of epiphany. With Jan Holmberg Director of the Ingmar Bergman Foundation, Stockholm Claire Thomson Professor of Cinema History and Director of the School of European Languages, Culture and Society at University College London And Laura Hubner Professor of Film at the University of Winchester Producer: Simon Tillotson Reading list: Alexander Ahndoril (trans. Sarah Death), The Director (Granta, 2008) Ingmar Bergman (trans. Marianne Ruuth), Images: My Life in Film (Faber and Faber, 1995) Ingmar Bergman (trans. Joan Tate), The Magic Lantern: An Autobiography (Viking, 1988) Ingmar Bergman (trans. Joan Tate), The Best Intentions (Vintage, 2018) Ingmar Bergman (trans. Joan Tate), Sunday’s Children (Vintage, 2018) Ingmar Bergman (trans. Joan Tate), Private Confessions (Vintage, 2018) Stig Björkman, Torsten Manns and Jonas Sima (trans. Paul Britten Austin), Bergman on Bergman: Interviews with Ingmar Bergman (Da Capo Press, 1993) Melvyn Bragg, The Seventh Seal: BFI Film Classics (British Film Institute, 1993) Paul Duncan and Bengt Wanselius (eds.), The Ingmar Bergman Archives (Taschen/Max Ström, 2018) Erik Hedling (ed.), Ingmar Bergman: An Enduring Legacy (Lund University Press, 2021) Laura Hubner, The Films of Ingmar Bergman: Illusions of Light and Darkness (Palgrave Macmillan, 2007) Daniel Humphrey, Queer Bergman: Sexuality, Gender, and the European Art Cinema (University of Texas Press, 2013) Maaret Koskinen (ed.), Bergman Revisited: Performance, Cinema, and the Arts (Wallflower Press, 2008) Selma Lagerlöf (trans. Peter Graves), The Phantom Carriage (Norvik Press, 2011) Mariah Larsson and Anders Marklund (eds.), Swedish Film: An Introduction and Reader (Nordic Academic Press, 2010) Paisley Livingston, Ingmar Bergman and the Rituals of Art (Cornell University Press, 2019) Birgitta Steene (ed.), Focus on The Seventh Seal (Prentice Hall, 1972) Birgitta Steene, Ingmar Bergman: A Reference Guide (Amsterdam University Press, 2014)

To mark his 1000th episode of In Our Time, Melvyn Bragg talks to Mishal Husain for Radio 4's Today programme.

Melvyn Bragg and guests discuss the man who, in 1905, produced several papers that were to change the world of physics and whose name went on to become a byword for genius. This was Albert Einstein, then still a technical expert at a Swiss patent office, and that year of 1905 became known as his annus mirabilis ('miraculous year'). While Einstein came from outside the academic world, some such as Max Planck championed his theory of special relativity, his principle of mass-energy equivalence that followed, and his explanations of Brownian Motion and the photoelectric effect. Yet it was not until 1919, when a solar eclipse proved his theory that gravity would bend light, that Einstein became an international celebrity and developed into an almost mythical figure. With Richard Staley Professor in History and Philosophy of Science at the University of Cambridge and Professor in History of Science at the University of Copenhagen Diana Kormos Buchwald Robert M. Abbey Professor of History and Director and General Editor of The Einstein Papers Project at the California Institute of Technology And John Heilbron Professor Emeritus at the University of California, Berkeley Producer: Simon Tillotson Reading list: Ronald W. Clark, Einstein: The Life and Times (first published 1971; HarperPaperbacks, 2011) Albert Einstein (eds. Jurgen Renn and Hanoch Gutfreund), Relativity: The Special and the General Theory - 100th Anniversary Edition (Princeton University Press, 2019) Albert Einstein, Out of My Later Years (first published 1950; Citadel Press, 1974) Albert Einstein (ed. Paul A. Schilpp), Albert Einstein: Philosopher-Scientist: The Library of Living Philosophers Volume VII (first published 1949; Open Court, 1970) Albert Einstein (eds. Otto Nathan and Heinz Norden), Einstein on Peace (first published 1981; Literary Licensing, 2011) Albrecht Folsing, Albert Einstein: A Biography (Viking, 1997) J. L. Heilbron, Niels Bohr: A Very Short Introduction (Oxford University Press, 2020) Walter Isaacson, Einstein: His Life and Universe (Simon & Schuster, 2008) Max Jammer, Einstein and Religion (Princeton University Press, 2002) Michel Janssen and Christoph Lehner (eds.), The Cambridge Companion to Einstein (Cambridge University Press, 2014) Dennis Overbye, Einstein in Love: A Scientific Romance (Viking, 2000) Abraham Pais, Subtle Is the Lord: The Science and the Life of Albert Einstein (Oxford University Press, 1982) David E. Rowe and Robert Schulmann (eds.), Einstein on Politics: His Private Thoughts and Public Stands on Nationalism, Zionism, War, Peace, and the Bomb (Princeton University Press, 2007) Matthew Stanley, Einstein's War: How Relativity Triumphed Amid the Vicious Nationalism of World War I (Dutton, 2019) Fritz Stern, Einstein’s German World (Princeton University Press, 1999) A. Douglas Stone, Einstein and the Quantum: The Quest of the Valiant Swabian (Princeton University Press, 2013) Milena Wazeck (trans. Geoffrey S. Koby), Einstein's Opponents: The Public Controversy About the Theory of Relativity in the 1920s (Cambridge University Press, 2014)

Melvyn Bragg and guests discuss the life and ideas of one of the great historians, best known for his History of the Decline and Fall of the Roman Empire (published 1776-89). According to Gibbon (1737-94) , the idea for this work came to him on 15th of October 1764 as he sat musing amidst the ruins of Rome, while barefooted friars were singing vespers in the Temple of Jupiter. Decline and Fall covers thirteen centuries and is an enormous intellectual undertaking and, on publication, it became a phenomenal success across Europe. The image above is of Edward Gibbon by Henry Walton, oil on mahogany panel, 1773. With David Womersley The Thomas Wharton Professor of English Literature at St Catherine’s College, University of Oxford Charlotte Roberts Lecturer in English at University College London And Karen O’Brien Professor of English Literature at the University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the remarkable diversity of the animals that dominated life on land in the Triassic, before the rise of the dinosaurs in the Jurassic, and whose descendants are often described wrongly as 'living fossils'. For tens of millions of years, the ancestors of alligators and Nile crocodiles included some as large as a bus, some running on two legs like a T Rex and some that lived like whales. They survived and rebounded from a series of extinction events but, while the range of habitats of the dinosaur descendants such as birds covers much of the globe, those of the crocodiles have contracted, even if the animals themselves continue to evolve today as quickly as they ever have. With Anjali Goswami Research Leader in Life Sciences and Dean of Postgraduate Education at the Natural History Museum Philip Mannion Lecturer in the Department of Earth Sciences at University College London And Steve Brusatte Professor of Palaeontology and Evolution at the University of Edinburgh Producer Simon Tillotson

Melvyn Bragg and guests discuss the debate in Valladolid, Spain in 1550, over Spanish rights to enslave the native peoples in the newly conquered lands. Bartolomé de Las Casas (pictured above), the Bishop of Chiapas, Mexico, was trying to end the encomienda system in which those who now owned the land could also take the people in forced labour. Juan Gines Sepulveda, a philosopher, argued for the colonists' property rights over people, asserting that some native Americans were 'natural slaves' as defined by Aristotle. Valladolid became seen as the first open attempt by European colonists to discuss the ethics of slavery, and Las Casas became known as 'Saviour of the Indians' and an advocate for human rights, although for some time he argued that African slaves be imported to do the work in place of the native people, before repenting. With Caroline Dodds Pennock Senior Lecturer in International History at the University of Sheffield John Edwards Faculty Fellow in Spanish at the University of Oxford And Julia McClure Lecturer in Late Medieval and Early Modern Global History at the University of Glasgow Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of the outstanding French writers of the twentieth century. The novels of Sidonie-Gabrielle Colette (1873 - 1954) always had women at their centre, from youth to mid-life to old age, and they were phenomenally popular, at first for their freshness and frankness about women’s lives, as in the Claudine stories, and soon for their sheer quality as she developed as a writer. Throughout her career she intrigued readers by inserting herself, or a character with her name, into her works, fictionalising her life as a way to share her insight into the human experience. With Diana Holmes Professor of French at the University of Leeds Michèle Roberts Writer, novelist, poet and Emeritus Professor of Creative Writing at the University of East Anglia And Belinda Jack Fellow and Tutor in French Literature and Language at Christ Church, University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the great epic poem attributed to Homer, telling the story of an intense episode in the Trojan War. It is framed by the wrath of the Greek hero Achilles, insulted by his leader Agamemnon and withdrawing from the battle that continued to rage, only returning when his close friend Patroclus is killed by the Trojan hero Hector. Achilles turns his anger from Agamemnon to Hector and the fated destruction of Troy comes ever closer. With Edith Hall Professor of Classics at King's College London Barbara Graziosi Professor of Classics at Princeton University And Paul Cartledge A.G. Leventis Senior Research Fellow and Emeritus Professor of Greek Culture at Clare College, Cambridge Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the ideas and life of the German theologian, born in Breslau/Wroclaw in 1906 and killed in the Flossenbürg concentration camp on 9th April 1945. Bonhoeffer developed ideas about the role of the Church in the secular world, in particular Germany after the Nazis took power in 1933 and demanded the Churches' support. He strongly opposed anti-Semitism and, with a role in the Military Intelligence Department, took part in the resistance, plotting to kill Hitler and meeting with contacts in the Allies. Bonhoeffer's ideas on Christian ethics and the relationship between Christianity and humanism spread more widely from the 1960s with the discovery of unpublished works, including those written in prison as he awaited execution. With Stephen Plant Dean and Runcie Fellow at Trinity Hall at the University of Cambridge Eleanor McLaughlin Lecturer in Theology and Ethics at the University of Winchester and Lecturer in Ethics at Regent’s Park College at the University of Oxford And Tom Greggs Marischal Chair of Divinity at the University of Aberdeen Producer: Simon Tillotson

Melvyn Bragg and guests discuss the most powerful woman in the Crusader states in the century after the First Crusade. Melisende (1105-61) was born and raised after the mainly Frankish crusaders had taken Jerusalem from the Fatimids, and her father was King of Jerusalem. She was married to Fulk from Anjou, on the understanding they would rule together, and for 30 years she vied with him and then their son as they struggled to consolidate their Frankish state in the Holy Land. The image above is of the coronation of Fulk with Melisende, from Livre d'Eracles, Guillaume de Tyr (1130?-1186) Source: Bibliothèque nationale de France With Natasha Hodgson Senior Lecturer in Medieval History and Director of the Centre for the Study of Religion and Conflict at Nottingham Trent University Katherine Lewis Senior Lecturer in History at the University of Huddersfield and Danielle Park Visiting Lecturer at Royal Holloway, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the abrupt transformation of stars after shining brightly for millions or billions of years, once they lack the fuel to counter the force of gravity. Those like our own star, the Sun, become red giants, expanding outwards and consuming nearby planets, only to collapse into dense white dwarves. The massive stars, up to fifty times the mass of the Sun, burst into supernovas, visible from Earth in daytime, and become incredibly dense neutron stars or black holes. In these moments of collapse, the intense heat and pressure can create all the known elements to form gases and dust which may eventually combine to form new stars, new planets and, as on Earth, new life. The image above is of the supernova remnant Cassiopeia A, approximately 10,000 light years away, from a once massive star that died in a supernova explosion that was first seen from Earth in 1690 With Martin Rees Astronomer Royal, Fellow of Trinity College, Cambridge Carolin Crawford Emeritus Member of the Institute of Astronomy and Emeritus Fellow of Emmanuel College, University of Cambridge And Mark Sullivan Professor of Astrophysics at the University of Southampton Producer: Simon Tillotson

Melvyn Bragg and guests discuss the Austrian-born film director Fritz Lang (1890-1976), who was one of the most celebrated film-makers of the 20th century. He worked first in Weimar Germany, creating a range of films including the startling and subversive Mabuse the Gambler and the iconic but ruinously expensive Metropolis before arguably his masterpiece, M, with both the police and the underworld hunting for a child killer in Berlin, his first film with sound. The rise of the Nazis prompted Lang's move to Hollywood where he developed some of his Weimar themes in memorable and disturbing films such as Fury and The Big Heat. With Stella Bruzzi Professor of Film and Dean of Arts and Humanities at University College London Joe McElhaney Professor of Film Studies at Hunter College, City University of New York And Iris Luppa Senior Lecturer in Film Studies in the Division of Film and Media at London South Bank University Producer: Simon Tillotson

Melvyn Bragg and guests discuss the simple animals which informed Charles Darwin's first book, The Structure and Distribution of Coral Reefs, published in 1842. From corals, Darwin concluded that the Earth changed very slowly and was not fashioned by God. Now coral reefs, which some liken to undersea rainforests, are threatened by human activity, including fishing, pollution and climate change. With Steve Jones Senior Research Fellow in Genetics at University College London Nicola Foster Lecturer in Marine Biology at the University of Plymouth And Gareth Williams Associate Professor in Marine Biology at Bangor University School of Ocean Sciences Producer Simon Tillotson.

Jupiter is the largest planet in our solar system, and it’s hard to imagine a world more alien and different from Earth. It’s known as a Gas Giant, and its diameter is eleven times the size of Earth’s: our planet would fit inside it one thousand three hundred times. But its mass is only three hundred and twenty times greater, suggesting that although Jupiter is much bigger than Earth, the stuff it’s made of is much, much lighter. When you look at it through a powerful telescope you see a mass of colourful bands and stripes: these are the tops of ferocious weather systems that tear around the planet, including the great Red Spot, probably the longest-lasting storm in the solar system. Jupiter is so enormous that it’s thought to have played an essential role in the distribution of matter as the solar system formed – and it plays an important role in hoovering up astral debris that might otherwise rain down on Earth. It’s almost a mini solar system in its own right, with 95 moons orbiting around it. At least two of these are places life might possibly be found. With Michele Dougherty, Professor of Space Physics and Head of the Department of Physics at Imperial College London, and principle investigator of the magnetometer instrument on the JUICE spacecraft (JUICE is the Jupiter Icy Moons Explorer, a mission launched by the European Space Agency in April 2023) Leigh Fletcher, Professor of Planetary Science at the University of Leicester, and interdisciplinary scientist for JUICE Carolin Crawford, Emeritus Fellow of Emmanuel College, University of Cambridge, and Emeritus Member of the Institute of Astronomy, Cambridge

In 1956 Oxford University awarded an honorary degree to the former US president Harry S. Truman for his role in ending the Second World War. One philosopher, Elizabeth Anscombe (1919 – 2001), objected strongly. She argued that although dropping nuclear bombs on Hiroshima and Nagasaki may have ended the fighting, it amounted to the murder of tens of thousands of innocent civilians. It was therefore an irredeemably immoral act. And there was something fundamentally wrong with a moral philosophy that didn’t see that. This was the starting point for a body of work that changed the terms in which philosophers discussed moral and ethical questions in the second half of the twentieth century. A leading student of the philosopher Ludwig Wittgenstein, Anscombe combined his insights with rejuvenated interpretations of Aristotle and Thomas Aquinas that made these ancient figures speak to modern issues and concerns. Anscombe was also instrumental in making action, and the question of what it means to intend to do something, a leading area of philosophical work. With Rachael Wiseman, Senior Lecturer in Philosophy at the University of Liverpool Constantine Sandis, Visiting Professor of Philosophy at the University of Hertfordshire, and Director of Lex Academic Roger Teichmann, Lecturer in Philosophy at St Hilda’s College, University of Oxford Producer: Luke Mulhall

Death in Venice is Thomas Mann’s most famous – and infamous - novella. Published in 1912, it’s about the fall of the repressed writer Gustav von Aschenbach, when his supposedly objective appreciation of a young boy’s beauty becomes sexual obsession. It explores the link between creativity and self-destruction, and by the end Aschenbach’s humiliation is complete, dying on a deckchair in the act of ogling. Aschenbach's stalking of the boy and dreaming of pederasty can appal modern readers, even more than Mann expected. With Karolina Watroba, Post-Doctoral Research Fellow in Modern Languages at All Souls College, University of Oxford Erica Wickerson, a Former Research Fellow at St Johns College, University of Cambridge Sean Williams, Senior Lecturer in German and European Cultural History at the University of Sheffield Sean Williams' series of Radio 3's The Essay, Death in Trieste, can be found here: https://www.bbc.co.uk/programmes/m001lzd4

Sophocles’ play Oedipus Rex begins with a warning: the murderer of the old king of Thebes, Laius, has never been identified or caught, and he’s still at large in the city. Oedipus is the current king of Thebes, and he sets out to solve the crime. His investigations lead to a devastating conclusion. Not only is Oedipus himself the killer, but Laius was his father, and Laius’ wife Jocasta, who Oedipus has married, is his mother. Oedipus Rex was composed during the golden age of Athens, in the 5th century BC. Sophocles probably wrote it to explore the dynamics of power in an undemocratic society. It has unsettled audiences from the very start: it is the only one of Sophocles’ plays that didn’t win first prize at Athens’ annual drama festival. But it’s had exceptionally good write-ups from the critics: Aristotle called it the greatest example of the dramatic arts. Freud believed it laid bare the deepest structures of human desire. With: Nick Lowe, Reader in Classical Literature at Royal Holloway, University of London Fiona Macintosh, Professor of Classical Reception and Fellow of St Hilda’s College at the University of Oxford Edith Hall, Professor of Classics at Durham University

Melvyn Bragg and guests discuss the power-packs within cells in all complex life on Earth. Inside each cell of every complex organism there are structures known as mitochondria. The 19th century scientists who first observed them thought they were bacteria which had somehow invaded the cells they were studying. We now understand that mitochondria take components from the food we eat and convert them into energy. Mitochondria are essential for complex life, but as the components that run our metabolisms they can also be responsible for a range of diseases – and they probably play a role in how we age. The DNA in mitochondria is only passed down the maternal line. This means it can be used to trace population movements deep into human history, even back to an ancestor we all share: mitochondrial Eve. With Mike Murphy Professor of Mitochondrial Redox Biology at the University of Cambridge Florencia Camus NERC Independent Research Fellow at University College London and Nick Lane Professor of Evolutionary Biochemistry at University College London Producer Luke Mulhall

In 1661 the 23 year-old French king Louis the XIV had been on the throne for 18 years when his chief minister, Cardinal Mazarin, died. Louis is reported to have said to his ministers, “It is now time that I govern my affairs myself. You will assist me with your counsels when I ask for them [but] I order you to seal no orders except by my command… I order you not to sign anything, not even a passport, without my command, and to render account to me personally each day” So began the personal rule of Louis XIV, which lasted a further 54 years until his death in 1715. From his newly-built palace at Versailles, Louis was able to project an image of himself as the centre of gravity around which all of France revolved: it’s no accident that he became known as the Sun King. He centralized power to the extent he was able to say ‘L’etat c’est moi’: I am the state. Under his rule France became the leading diplomatic, military and cultural power in Europe. With Catriona Seth Marshal Foch Professor of French Literature at the University of Oxford Guy Rowlands Professor of Early Modern History at the University of St Andrews and Penny Roberts Professor of Early Modern History at the University of Warwick Producer: Luke Mulhall

In the year 29 BC the great Roman poet Virgil published these lines: Blessed is he who has succeeded in learning the laws of nature’s working, has cast beneath his feet all fear and fate’s implacable decree, and the howl of insatiable Death. But happy too is he who knows the rural gods… They’re from his poem the Georgics, a detailed account of farming life in the Italy of the time. ‘Georgics’ means ‘agricultural things’, and it’s often been read as a farming manual. But it was written at a moment when the Roman world was emerging from a period of civil war, and questions of land ownership and management were heavily contested. It’s also a philosophical reflection on humanity’s relationship with the natural world, the ravages of time, and the politics of Virgil’s day. It’s exerted a profound influence on European writing about agriculture and rural life, and has much to offer environmental thinking today. With Katharine Earnshaw Senior Lecturer in Classics and Ancient History at the University of Exeter; Neville Morley Professor of Classics and Ancient History at the University of Exeter and Diana Spencer Professor of Classics at the University of Birmingham Producer: Luke Mulhall

Melvyn Bragg and guests discuss the Christian uprising in Japan and its profound and long-term consequences. In the 1630s, Japan was ruled by the Tokagawa Shoguns, a military dynasty who, 30 years earlier, had unified the country, ending around two centuries of civil war. In 1637 a rebellion broke out in the province of Shimabara, in the south of the country. It was a peasants’ revolt, following years of bad harvests in which the local lord had refused to lower taxes. Many of the rebels were Christians, and they fought under a Christian banner. The central government’s response was merciless. They met the rebels with an army of 150 000 men, possibly the largest force assembled anywhere in the world during the Early Modern period. Once the rebellion had been suppressed, the Shogun enforced a ban on Christianity and expelled nearly all foreigners from the country. Japan remained more or less completely sealed off from the rest of the world for the next 250 years. With Satona Suzuki Lecturer in Japanese and Modern Japanese History at SOAS, University of London Erica Baffelli Professor of Japanese Studies at the University of Manchester and Christopher Harding Senior Lecturer in Asian History at the University of Edinburgh Producer Luke Mulhall

Melvyn Bragg and guests discuss the revelatory collection of Biblical texts, legal documents, community rules and literary writings. In 1946 a Bedouin shepherd boy was looking for a goat he’d lost in the hills above the Dead Sea. He threw a rock into a cave and heard a hollow sound. He’d hit a ceramic jar containing an ancient manuscript. This was the first of the Dead Sea Scrolls, a collection of about a thousand texts dating from around 250 BC to AD 68. It is the most substantial first hand evidence we have for the beliefs and practices of Judaism in and around the lifetime of Jesus. The Dead Sea Scrolls have transformed our understanding of how the texts that make up the Hebrew Bible were edited and collected. They also offer a tantalising window onto the world from which Christianity eventually emerged. With Sarah Pearce Ian Karten Professor of Jewish Studies and Head of the School of Humanities at the University of Southampton Charlotte Hempel Professor of Hebrew Bible and Second Temple Judaism at the University of Birmingham and George Brooke Rylands Professor Emeritus of Biblical Criticism and Exegesis at the University of Manchester Producer Luke Mulhall

Melvyn Bragg and guests discuss the highly influential American poet Walt Whitman. In 1855 Whitman was working as a printer, journalist and property developer when he published his first collection of poetry. It began: I celebrate myself, And what I assume you shall assume For every atom belonging to me as good belongs to you. The book was called Leaves of Grass. In it, Whitman set out to break away from European literary forms and traditions. Using long lines written in free verse, he developed a poetry meant to express a distinctively American outlook. Leaves of Grass is full of verse that celebrates both the sovereign individual, and the deep fellowship between individuals. Its optimism about the American experience was challenged by the Civil War and its aftermath, but Whitman emerged as a celebrity and a key figure in the development of American culture. With Sarah Churchwell Professor of American Literature and the Public Understanding of the Humanities at the University of London Peter Riley Lecturer in 19th Century American Literature at the University of Exeter and Mark Ford Professor of English and American Literature at University College London Producer Luke Mulhall

Melvyn Bragg and guests discuss the life, ideas and legacy of the pioneering Swedish botanist Carl Linnaeus (1707 – 1778). The philosopher Jean-Jacques Rousseau once wrote: "Tell him I know no greater man on earth". The son of a parson, Linnaeus grew up in an impoverished part of Sweden but managed to gain a place at university. He went on to transform biology by making two major innovations. He devised a simpler method of naming species and he developed a new system for classifying plants and animals, a system that became known as the Linnaean hierarchy. He was also one of the first people to grow a banana in Europe. With Staffan Muller-Wille University Lecturer in History of Life, Human and Earth Sciences at the University of Cambridge Stella Sandford Professor of Modern European Philosophy at Kingston University, London and Steve Jones Senior Research Fellow in Genetics at University College, London Producer Luke Mulhall

Melvyn Bragg and guests discuss the brutal events of 26 August 1346, when the armies of France and England met in a funnel-shaped valley outside the town of Crécy in northern France. Although the French, led by Philip VI, massively outnumbered the English, under the command of Edward III, the English won the battle, and French casualties were huge. The English victory is often attributed to the success of their longbowmen against the heavy cavalry of the French. The Battle of Crécy was the result of years of simmering tension between Edward III and Philip VI, and it led to decades of further conflict between England and France, a conflict that came to be known as the Hundred Years War. With Anne Curry Emeritus Professor of Medieval History at the University of Southampton Andrew Ayton Senior Research Fellow in History at Keele University and Erika Graham-Goering Lecturer in Late Medieval History at Durham University Producer Luke Mulhall

Melvyn Bragg and guests discuss the Danish prince who became a very effective King of England in 1016. Cnut inherited a kingdom in a sorry state. The north and east coast had been harried by Viking raiders, and his predecessor King Æthelred II had struggled to maintain order amongst the Anglo-Saxon nobility too. Cnut proved to be skilful ruler. Not only did he bring stability and order to the kingdom, he exported the Anglo-Saxon style of centralised government to Denmark. Under Cnut, England became the cosmopolitan centre of a multi-national North Atlantic Empire, and a major player in European politics. With Erin Goeres Associate Professor of Old Norse Language and Literature at University College London Pragya Vohra Lecturer in Medieval History at the University of York and Elizabeth Tyler Professor of Medieval Literature and Co-Director of the Centre for Medieval Studies at the University of York Producer Luke Mulhall

Melvyn Bragg and guests discuss Virginia Woolf's highly influential essay on women and literature, which considers both literary history and future opportunity. In 1928 Woolf gave two lectures at Cambridge University about women and fiction. In front of an audience at Newnham College, she delivered the following words: “All I could do was offer you an opinion upon one minor point - a woman must have money and a room of her own if she is to write fiction; and that, as you will see, leaves the great problem of the true nature of woman and the true nature of fiction unsolved”. These lectures formed the basis of a book she published the following year, and Woolf chose A Room Of One’s Own for its title. It is a text that set the scene for the study of women’s writing for the rest of the 20th century. Arguably, it initiated the discipline of women’s history too. With Hermione Lee Emeritus Professor of English Literature at the University of Oxford Michele Barrett Emeritus Professor of Modern Literary and Cultural Theory at Queen Mary, University of London and Alexandra Harris Professor of English at the University of Birmingham Producer Luke Mulhall

Melvyn Bragg and guests discuss Solon, who was elected archon or chief magistrate of Athens in 594 BC: some see him as the father of Athenian democracy. In the first years of the 6th century BC, the city state of Athens was in crisis. The lower orders of society were ravaged by debt, to the point where some were being forced into slavery. An oppressive law code mandated the death penalty for everything from murder to petty theft. There was a real danger that the city could fall into either tyranny or civil war. Solon instituted a programme of reforms that transformed Athens’ political and legal systems, its society and economy, so that later generations referred to him as Solon the Lawgiver. With Melissa Lane Class of 1943 Professor of Politics at Princeton University Hans van Wees Grote Professor of Ancient History at University College London and William Allan Professor of Greek and McConnell Laing Tutorial Fellow in Greek and Latin Languages and Literature at University College, University of Oxford Producer Luke Mulhall

Melvyn Bragg and guests discuss how, between the 16th and 18th centuries, Europe was dominated by an economic way of thinking called mercantilism. The key idea was that exports should be as high as possible and imports minimised. For more than 300 years, almost every ruler and political thinker was a mercantilist. Eventually, economists including Adam Smith, in his ground-breaking work of 1776 The Wealth of Nations, declared that mercantilism was a flawed concept and it became discredited. However, a mercantilist economic approach can still be found in modern times and today’s politicians sometimes still use rhetoric related to mercantilism. With D’Maris Coffman Professor in Economics and Finance of the Built Environment at University College London Craig Muldrew Professor of Social and Economic History at the University of Cambridge and a Member of Queens’ College and Helen Paul, Lecturer in Economics and Economic History at the University of Southampton. Producer Luke Mulhall

Melvyn Bragg and guests discuss the Ramayana, the ancient Hindu epic which is regarded as one of the greatest works of world literature. Its importance in Indian culture has been compared to that of the Iliad and Odyssey in the West, and it’s still seen as a sacred text by Hindus today. Written in Sanskrit, it tells the story of the legendary prince and princess Rama and Sita, and the many challenges, misfortunes and choices that they face. About 24,000 verses long, the Ramayana is also one of the longest ancient epics. It’s a text that’s been hugely influential and it continues to be popular in India and elsewhere in Asia. With Jessica Frazier Lecturer in the Study of Religion at the University of Oxford and a Fellow of the Oxford Centre for Hindu Studies Chakravarthi Ram-Prasad Distinguished Professor of Comparative Religion and Philosophy at Lancaster University and Naomi Appleton Senior Lecturer in Asian Religions at the University of Edinburgh The image above shows Rama, Sita, Hanuman, Lakshmana and devotees, from the Shree Jalaram Prarthana Mandal, Leicester. Producer Luke Mulhall

Melvyn Bragg and guests discuss megaliths - huge stones placed in the landscape, often visually striking and highly prominent. Such stone monuments in Britain and Ireland mostly date from the Neolithic period, and the most ancient are up to 6,000 years old. In recent decades, scientific advances have enabled archaeologists to learn a large amount about megalithic structures and the people who built them, but much about these stones remains unknown and mysterious. With Vicki Cummings Professor of Neolithic Archaeology at the University of Central Lancashire Julian Thomas Professor of Archaeology at the University of Manchester and Susan Greaney Lecturer in Archaeology at the University of Exeter.

Paul Erdős (1913 – 1996) is one of the most celebrated mathematicians of the 20th century. During his long career, he made a number of impressive advances in our understanding of maths and developed whole new fields in the subject. He was born into a Jewish family in Hungary just before the outbreak of World War I, and his life was shaped by the rise of fascism in Europe, anti-Semitism and the Cold War. His reputation for mathematical problem solving is unrivalled and he was extraordinarily prolific. He produced more than 1,500 papers and collaborated with around 500 other academics. He also had an unconventional lifestyle. Instead of having a long-term post at one university, he spent much of his life travelling around visiting other mathematicians, often staying for just a few days. With Colva Roney-Dougal Professor of Pure Mathematics at the University of St Andrews Timothy Gowers Professor of Mathematics at the College de France in Paris and Fellow of Trinity College, Cambridge and Andrew Treglown Associate Professor in Mathematics at the University of Birmingham The image above shows a graph occurring in Ramsey Theory. It was created by Dr Katherine Staden, lecturer in the School of Mathematics at the Open University.

In 1957 Stevie Smith published a poetry collection called Not Waving But Drowning – and its title poem gave us a phrase which has entered the language. Its success has overshadowed her wider work as the author of more than half a dozen collections of poetry and three novels, mostly written while she worked as a secretary. Her poems, printed with her pen and ink sketches, can seem simple and comical, but often beneath the surface lurk themes of melancholy, loneliness, love and death. With Jeremy Noel-Tod Associate Professor in the School of Literature, Drama and Creative Writing at the University of East Anglia Noreen Masud Lecturer in Twentieth Century Literature at the University of Bristol and Will May Professor of Modern and Contemporary Literature at the University of Southampton The photograph above shows Stevie Smith recording her story Sunday at Home, a finalist in the BBC Third Programme Short Story competition in 1949.

On 21 May 1838 an estimated 150,000 people assembled on Glasgow Green for a mass demonstration. There they witnessed the launch of the People’s Charter, a list of demands for political reform. The changes they called for included voting by secret ballot, equal-sized constituencies and, most importantly, that all men should have the vote. The Chartists, as they came to be known, were the first national mass working-class movement. In the decade that followed, they collected six million signatures for their Petitions to Parliament: all were rejected, but their campaign had a significant and lasting impact. With Joan Allen Visiting Fellow in History at Newcastle University and Chair of the Society for the Study of Labour History Emma Griffin Professor of Modern British History at the University of East Anglia and President of the Royal Historical Society and Robert Saunders Reader in Modern British History at Queen Mary, University of London. The image above shows a Chartist mass meeting on Kennington Common in London in April 1848.

Melvyn Bragg and guests discuss the pioneering Danish astronomer Tycho Brahe (1546 – 1601) whose charts offered an unprecedented level of accuracy. In 1572 Brahe's observations of a new star challenged the idea, inherited from Aristotle, that the heavens were unchanging. He went on to create his own observatory complex on the Danish island of Hven, and there, working before the invention of the telescope, he developed innovative instruments and gathered a team of assistants, taking a highly systematic approach to observation. A second, smaller source of renown was his metal prosthetic nose, which he needed after a serious injury sustained in a duel. The image above shows Brahe aged 40, from the Atlas Major by Johann Blaeu. With Ole Grell Emeritus Professor in Early Modern History at the Open University Adam Mosley Associate Professor of History at Swansea University and Emma Perkins Affiliate Scholar in the Department of History and Philosophy of Science at the University of Cambridge.

Melvyn Bragg and guests discuss the discovery made in 1911 by the Dutch physicist Heike Kamerlingh Onnes (1853-1926). He came to call it Superconductivity and it is a set of physical properties that nobody predicted and that none, since, have fully explained. When he lowered the temperature of mercury close to absolute zero and ran an electrical current through it, Kamerlingh Onnes found not that it had low resistance but that it had no resistance. Later, in addition, it was noticed that a superconductor expels its magnetic field. In the century or more that has followed, superconductors have already been used to make MRI scanners and to speed particles through the Large Hadron Collider and they may perhaps bring nuclear fusion a little closer (a step that could be world changing). The image above is from a photograph taken by Stephen Blundell of a piece of superconductor levitating above a magnet. With Nigel Hussey Professor of Experimental Condensed Matter Physics at the University of Bristol and Radbout University Suchitra Sebastian Professor of Physics at the Cavendish Laboratory at the University of Cambridge And Stephen Blundell Professor of Physics at the University of Oxford and Fellow of Mansfield College Producer: Simon Tillotson

Melvyn Bragg and guests discuss A Theory of Justice by John Rawls (1921 - 2002) which has been called the most influential book in twentieth century political philosophy. It was first published in 1971. Rawls (pictured above) drew on his own experience in WW2 and saw the chance in its aftermath to build a new society, one founded on personal liberty and fair equality of opportunity. While in that just society there could be inequalities, Rawls’ radical idea was that those inequalities must be to the greatest advantage not to the richest but to the worst off. With Fabienne Peter Professor of Philosophy at the University of Warwick Martin O’Neill Professor of Political Philosophy at the University of York And Jonathan Wolff The Alfred Landecker Professor of Values and Public Policy at the Blavatnik School of Government, University of Oxford and Fellow of Wolfson College Producer: Simon Tillotson

Melvyn Bragg and guests discuss Donne (1573-1631), known now as one of England’s finest poets of love and notable in his own time as an astonishing preacher. He was born a Catholic in a Protestant country and, when he married Anne More without her father's knowledge, Donne lost his job in the government circle and fell into a poverty that only ended once he became a priest in the Church of England. As Dean of St Paul’s Cathedral, his sermons were celebrated, perhaps none more than his final one in 1631 when he was plainly in his dying days, as if preaching at his own funeral. The image above is from a miniature in the Royal Collection and was painted in 1616 by Isaac Oliver (1565-1617) With Mary Ann Lund Associate Professor in Renaissance English Literature at the University of Leicester Sue Wiseman Professor of Seventeenth Century Literature at Birkbeck, University of London And Hugh Adlington Professor of English Literature at the University of Birmingham

Melvyn Bragg and guests discuss the stench from the River Thames in the hot summer of 1858 and how it appalled and terrified Londoners living and working beside it, including those in the new Houses of Parliament which were still under construction. There had been an outbreak of cholera a few years before in which tens of thousands had died, and a popular theory held that foul smells were linked to diseases. The source of the problem was that London's sewage, once carted off to fertilise fields had recently, thanks to the modern flushing systems, started to flow into the river and, thanks to the ebb and flow of the tides, was staying there and warming in the summer sun. The engineer Joseph Bazalgette was given the task to build huge new sewers to intercept the waste, a vast network, so changing the look of London and helping ensure there were no further cholera outbreaks from contaminated water. The image above is from Punch, July 10th 1858 and it has this caption: The 'Silent Highway'-Man. "Your Money or your Life!" With Rosemary Ashton Emeritus Quain Professor of English Language and Literature at University College London Stephen Halliday Author of ‘The Great Stink of London: Sir Joseph Bazalgette and the Cleansing of the Victorian Metropolis’ And Paul Dobraszczyk Lecturer at the Bartlett School of Architecture at University College London

Melvyn Bragg and guests discuss Jane Austen’s last complete novel, which was published just before Christmas in 1817, five months after her death. It is the story of Anne Elliot, now 27 and (so we are told), losing her bloom, and of her feelings for Captain Wentworth who she was engaged to, 8 years before – an engagement she broke off under pressure from her father and godmother. When Wentworth, by chance, comes back into Anne Elliot's life, he is still angry with her and neither she nor Austen's readers can know whether it is now too late for their thwarted love to have a second chance. The image above is from a 1995 BBC adaptation of the novel, with Amanda Root and Ciarán Hinds With Karen O’Brien Vice-Chancellor of Durham University Fiona Stafford Professor of English Language and Literature at the University of Oxford And Paddy Bullard Associate Professor of English Literature and Book History at the University of Reading Producer: Simon Tillotson

Melvyn Bragg and guests discuss Orson Welles' film, released in 1941, which is widely acclaimed as one of the greatest, if not the greatest, films yet made. Welles plays the lead role of Charles Foster Kane, a newspaper magnate, and Welles directed, produced and co-wrote this story of loneliness at the heart of a megalomaniac. The plot was partly inspired by the life of William Randolph Hearst, who then used the power of his own newspapers to try to suppress the film’s release. It was to take some years before Citizen Kane reached a fuller audience and, from that point, become so celebrated. The image above is of Kane addressing a public meeting while running for Governor. With Stella Bruzzi Professor of Film and Dean of Arts and Humanities at University College London Ian Christie Professor of Film and Media History at Birkbeck, University of London And John David Rhodes Professor of Film Studies and Visual Culture at the University of Cambridge Producer: Simon Tillotson

Melvyn Bragg and guests discuss the momentum behind rebellion in Ireland in 1798, the people behind the rebellion and the impact over the next few years and after. Amid wider unrest, the United Irishmen set the rebellion on its way, inspired by the French and American revolutionaries and their pursuit of liberty. When it broke out in May the United Irishmen had an estimated two hundred thousand members, Catholic and Protestant, and the prospect of a French invasion fleet to back them. Crucially for the prospects of success, some of those members were British spies who exposed the plans and the military were largely ready - though not in Wexford where the scale of rebellion was much greater. The fighting was initially fierce and brutal and marked with sectarianism but had largely been suppressed by the time the French arrived in August to declare a short-lived republic. The consequences of the rebellion were to be far reaching, not least in the passing of Acts of Union in 1800. The image above is of Theobald Wolfe Tone (1763 - 1798), prominent member of the United Irishmen With Ian McBride Foster Professor of Irish History at Hertford College, University of Oxford Catriona Kennedy Senior Lecturer in Modern History at the University of York And Liam Chambers Head of Department and Senior Lecturer in History at Mary Immaculate College, Limerick Producer: Simon Tillotson

Melvyn Bragg and guests discuss The Song of the Nibelungs, a twelfth century German epic, full of blood, violence, fantasy and bleakness. It is a foundational work of medieval literature, drawing on the myths of Scandinavia and central Europe. The poem tells of two couples, Siegfried and Kriemhild and Gunther and Brunhilda, whose lives are destroyed by lies and revenge. It was extremely popular in its time, sometimes rewritten with happier endings, and was rediscovered by German Romantics and has since been drawn from selectively by Wagner, Fritz Lang and, infamously, the Nazis looking to support ideas on German heritage. The image above is of Siegfried seeing Kriemhild for the first time, a miniature from the Hundeshagenschen Code manuscript dating from 15th Century. With Sarah Bowden Reader in German and Medieval Studies at King’s College London Mark Chinca Professor of Medieval German and Comparative Literature at the University of Cambridge And Bettina Bildhauer Professor of Modern Languages at the University of St Andrews Producer: Simon Tillotson

Melvyn Bragg and guests discuss the voyage of HMS Challenger which set out from Portsmouth in 1872 with a mission a to explore the ocean depths around the world and search for new life. The scale of the enterprise was breath taking and, for its ambition, it has since been compared to the Apollo missions. The team onboard found thousands of new species, proved there was life on the deepest seabeds and plumbed the Mariana Trench five miles below the surface. Thanks to telegraphy and mailboats, its vast discoveries were shared around the world even while Challenger was at sea, and they are still being studied today, offering insights into the ever-changing oceans that cover so much of the globe and into the health of our planet. The image above is from the journal of Pelham Aldrich R.N. who served on the Challenger Surveying Expedition from 1872-5. With Erika Jones Curator of Navigation and Oceanography at Royal Museums Greenwich Sam Robinson Southampton Marine and Maritime Institute Research Fellow at the University of Southampton And Giles Miller Principal Curator of Micropalaeontology at the Natural History Museum London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the speeches that became a byword for fierce attacks on political opponents. It was in the 4th century BC, in Athens, that Demosthenes delivered these speeches against the tyrant Philip II of Macedon, father of Alexander the Great, when Philip appeared a growing threat to Athens and its allies and Demosthenes feared his fellow citizens were set on appeasement. In what became known as The Philippics, Demosthenes tried to persuade Athenians to act against Macedon before it was too late; eventually he succeeded in stirring them, even if the Macedonians later prevailed. For these speeches prompting resistance, Demosthenes became famous as one of the Athenian democracy’s greatest freedom fighters. Later, in Rome, Cicero's attacks on Mark Antony were styled on Demosthenes and these too became known as Philippics. The image above is painted on the dome of the library of the National Assembly, Paris and is by Eugene Delacroix (1798-1863). It depicts Demosthenes haranguing the waves of the sea as a way of strengthening his voice for his speeches. With Paul Cartledge A. G. Leventis Senior Research Fellow at Clare College, University of Cambridge Kathryn Tempest Reader in Latin Literature and Roman History at the University of Roehampton And Jon Hesk Reader in Greek and Classical Studies at the University of St Andrews Producer: Simon Tillotson

Melvyn Bragg and guests discuss the Bauhaus which began in 1919 in Weimar, Germany, as a school for arts and crafts combined, and went on to be famous around the world. Under its first director, Walter Gropius, the Bauhaus moved to Dessau and extended its range to architecture and became associated with a series of white, angular, flat-roofed buildings reproduced from Shanghai to Chicago, aimed for modern living. The school closed after only 14 years while at a third location, Berlin, under pressure from the Nazis, yet its students and teachers continued to spread its ethos in exile, making it even more influential. The image above is of the Bauhaus Building, Dessau, designed by Gropius and built in 1925-6 With Robin Schuldenfrei Tangen Reader in 20th Century Modernism at The Courtauld Institute of Art Alan Powers History Leader at the London School of Architecture And Michael White Professor of the History of Art at the University of York Producer: Simon Tillotson

Melvyn Bragg and guests discuss the rebellion that broke out in Jamaica on 11th October 1865 when Paul Bogle (1822-65) led a protest march from Stony Gut to the courthouse in nearby Morant Bay. There were many grounds for grievance that day and soon anger turned to bloodshed. Although the British had abolished slavery 30 years before, the plantation owners were still dominant and the conditions for the majority of people on Jamaica were poor. The British governor suppressed this rebellion brutally and soon people in Jamaica lost what right they had to rule themselves. Some in Britain, like Charles Dickens, supported the governor's actions while others, like Charles Darwin, wanted him tried for murder. The image above is from a Jamaican $2 banknote, printed after Paul Bogle became a National Hero in 1969. With Matthew J Smith Professor of History and Director of the Centre for the Study of the Legacies of British Slavery at University College London Diana Paton The William Robertson Professor of History at the University of Edinburgh And Lawrence Goldman Emeritus Fellow in History at St Peter’s College, University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the celebrated British poet of World War One. Wilfred Owen (1893-1918) had published only a handful of poems when he was killed a week before the end of the war, but in later decades he became seen as the essential British war poet. His works such as Anthem for Doomed Youth, Strange Meeting and Dulce et Decorum Est went on to be inseparable from the memory of the war and its futility. However, while Owen is best known for his poetry of the trenches, his letters offer a more nuanced insight into him such as his pride in being an officer in charge of others and in being a soldier who fought alongside his comrades. With Jane Potter Reader in The School of Arts at Oxford Brookes University Fran Brearton Professor of Modern Poetry at Queen’s University Belfast And Guy Cuthbertson Professor of British Literature and Culture at Liverpool Hope University Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of the greatest changes in the history of life on Earth. Around 400 million years ago some of our ancestors, the fish, started to become a little more like humans. At the swampy margins between land and water, some fish were turning their fins into limbs, their swim bladders into lungs and developed necks and eventually they became tetrapods, the group to which we and all animals with backbones and limbs belong. After millions of years of this transition, these tetrapod descendants of fish were now ready to leave the water for a new life of walking on land, and with that came an explosion in the diversity of life on Earth. The image above is a representation of Tiktaalik Roseae, a fish with some features of a tetrapod but not one yet, based on a fossil collected in the Canadian Arctic. With Emily Rayfield Professor of Palaeobiology at the University of Bristol Michael Coates Chair and Professor of Organismal Biology and Anatomy at the University of Chicago And Steve Brusatte Professor of Palaeontology and Evolution at the University of Edinburgh Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of the influential painters at the heart of the French Impressionist movement: Berthe Morisot (1841-1895). The men in her circle could freely paint in busy bars and public spaces, while Morisot captured the domestic world and found new, daring ways to paint quickly in the open air. Her work shows women as they were, to her: informal, unguarded, and not transformed or distorted for the eyes of men. The image above is one of her few self-portraits, though several portraits of her survive by other artists, chiefly her sister Edma and her brother-in-law Edouard Manet. With Tamar Garb Professor of History of Art at University College London Lois Oliver Curator at the Royal Academy and Adjunct Professor of Art History at the American University of Notre Dame London. And Claire Moran Reader in French at Queen's University Belfast Producer: Simon Tillotson

Melvyn Bragg and guests discuss the military order founded around 1119, twenty years after the Crusaders captured Jerusalem. For almost 200 years the Knights Templar were a notable fighting force and financial power in the Crusader States and Western Europe. Their mission was to protect pilgrims in the Holy Land, and they became extremely wealthy yet, as the crusader grip on Jerusalem slipped, their political fortune declined steeply. They were to be persecuted out of existence, with their last grand master burned at the stake in Paris in 1314, and that sudden end has contributed to the strength of the legends that have grown up around them. With Helen Nicholson Professor of Medieval History at Cardiff University Mike Carr Lecturer in Late Medieval History at the University of Edinburgh And Jonathan Phillips Professor of Crusading History at Royal Holloway, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss an atomic particle that's become inseparable from modernity. JJ Thomson discovered the electron 125 years ago, so revealing that atoms, supposedly the smallest things, were made of even smaller things. He pictured them inside an atomic ball like a plum pudding, with others later identifying their place outside the nucleus - and it is their location on the outer limit that has helped scientists learn so much about electrons and with electrons. We can use electrons to reveal the secrets of other particles and, while electricity exists whether we understand electrons or not, the applications of electricity and electrons grow as our knowledge grows. Many questions, though, remain unanswered. With Victoria Martin Professor of Collider Physics at the University of Edinburgh Harry Cliff Research Fellow in Particle Physics at the University of Cambridge And Frank Close Professor Emeritus of Theoretical Physics and Fellow Emeritus at Exeter College at the University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss Plato's account of the once great island of Atlantis out to the west, beyond the world known to his fellow Athenians, and why it disappeared many thousands of years before his time. There are no sources for this story other than Plato, and he tells it across two of his works, the Timaeus and the Critias, tantalizing his readers with evidence that it is true and clues that it is a fantasy. Atlantis, for Plato, is a way to explore what an ideal republic really is, and whether Athens could be (or ever was) one; to European travellers in the Renaissance, though, his story reflected their own encounters with distant lands, previously unknown to them, spurring generations of explorers to scour the oceans and in the hope of finding a lost world. The image above is from an engraving of the legendary island of Atlantis after a description by Athanasius Kircher (1602-1680). With Edith Hall Professor of Classics at Durham University Christopher Gill Emeritus Professor of Ancient Thought at the University of Exeter And Angie Hobbs Professor of the Public Understanding of Philosophy at the University of Sheffield Producer: Simon Tillotson

Melvyn Bragg and guests discuss George Orwell's (1903-1950) final novel, published in 1949, set in a dystopian London which is now found in Airstrip One, part of the totalitarian superstate of Oceania which is always at war and where the protagonist, Winston Smith, works at the Ministry of Truth as a rewriter of history: 'Who controls the past,' ran the Party slogan, 'controls the future: who controls the present controls the past.' The influence of Orwell's novel is immeasurable, highlighting threats to personal freedom with concepts he named such as doublespeak, thoughtcrime, Room 101, Big Brother, memory hole and thought police. With David Dwan Professor of English Literature and Intellectual History at the University of Oxford Lisa Mullen Teaching Associate in Modern Contemporary Literature at the University of Cambridge And John Bowen Professor of English Literature at the University of York Producer: Simon Tillotson

Melvyn Bragg and guests discuss the origin of this personification of the English everyman and his development as both British and Britain in the following centuries. He first appeared along with Lewis Baboon (French) and Nicholas Frog (Dutch) in 1712 in a pamphlet that satirised the funding of the War of the Spanish Succession. The author was John Arbuthnot (1667-1735), a Scottish doctor and satirist who was part of the circle of Swift and Pope, and his John Bull was the English voter, overwhelmed by taxes that went not so much into the war itself but into the pockets of its financiers. For the next two centuries, Arbuthnot’s John Bull was a gift for cartoonists and satirists, especially when they wanted to ridicule British governments for taking advantage of the people’s patriotism. The image above is by William Charles, a Scottish engraver who emigrated to the United States, and dates from 1814 during the Anglo-American War of 1812. With Judith Hawley Professor of 18th Century Literature at Royal Holloway, University of London Miles Taylor Professor of British History and Society at Humboldt, University of Berlin And Mark Knights Professor of History at the University of Warwick Producer: Simon Tillotson

Melvyn Bragg and guests discuss the largest and arguably the most astonishing religious structure on Earth, built for Suryavarman II in the 12th Century in modern-day Cambodia. It is said to have more stone in it than the Great Pyramid of Giza, and much of the surface is intricately carved and remarkably well preserved. For the last 900 years Angkor Wat has been a centre of religion, whether Hinduism, Buddhism or Animism or a combination of those, and a source of wonder to Cambodians and visitors from around the world. With Piphal Heng Postdoctoral scholar at the Cotsen Institute and the Programme for Early Modern Southeast Asia at UCLA Ashley Thompson Hiram W Woodward Chair of Southeast Asian Art at SOAS University of London And Simon Warrack A stone conservator who has worked extensively at Angkor Wat Producer: Simon Tillotson

Melvyn Bragg and guests discuss the celebrated Welsh poet, Dylan Thomas (1914 - 1953). He wrote some of his best poems before he was twenty in the first half of his short, remarkable life, and was prolific in the second half too with poems such as those set in London under the Blitz and reworkings of his childhood in Swansea, and his famous radio play Under Milk Wood (performed after his death). He was read widely and widely heard: with his reading tours in America and recordings of his works that sold in their hundreds of thousands after his death, he is credited with reviving the act of poetry as performance in the 20th century. With Nerys Williams Associate Professor of Poetry and Poetics at University College Dublin John Goodby Professor of Arts and Culture at Sheffield Hallam University And Leo Mellor The Roma Gill Fellow in English at Murray Edwards College, University of Cambridge Producer: Simon Tillotson

Melvyn Bragg and guests discuss the abrupt transformation of stars after shining brightly for millions or billions of years, once they lack the fuel to counter the force of gravity. Those like our own star, the Sun, become red giants, expanding outwards and consuming nearby planets, only to collapse into dense white dwarves. The massive stars, up to fifty times the mass of the Sun, burst into supernovas, visible from Earth in daytime, and become incredibly dense neutron stars or black holes. In these moments of collapse, the intense heat and pressure can create all the known elements to form gases and dust which may eventually combine to form new stars, new planets and, as on Earth, new life. The image above is of the supernova remnant Cassiopeia A, approximately 10,000 light years away, from a once massive star that died in a supernova explosion that was first seen from Earth in 1690 With Martin Rees Astronomer Royal, Fellow of Trinity College, Cambridge Carolin Crawford Emeritus Member of the Institute of Astronomy and Emeritus Fellow of Emmanuel College, University of Cambridge And Mark Sullivan Professor of Astrophysics at the University of Southampton Producer: Simon Tillotson

Melvyn Bragg and guests discuss ideas of Georg Wilhelm Friedrich Hegel (1770 - 1831) on history. Hegel, one of the most influential of the modern philosophers, described history as the progress in the consciousness of freedom, asking whether we enjoy more freedom now than those who came before us. To explore this, he looked into the past to identify periods when freedom was moving from the one to the few to the all, arguing that once we understand the true nature of freedom we reach an endpoint in understanding. That end of history, as it's known, describes an understanding of freedom so far progressed, so profound, that it cannot be extended or deepened even if it can be lost. With Sally Sedgwick Professor and Chair of Philosophy at Boston University Robert Stern Professor of Philosophy at the University of Sheffield And Stephen Houlgate Professor of Philosophy at the University of Warwick Producer: Simon Tillotson

Melvyn Bragg and guests discuss the Czech educator Jan Amos Komenský (1592-1670) known throughout Europe in his lifetime under the Latin version of his name, Comenius. A Protestant and member of the Unity of Brethren, he lived much of his life in exile, expelled from his homeland under the Catholic Counter-Reformation, and he wanted to address the deep antagonisms underlying the wars that were devastating Europe especially The Thirty Years War (1618-1648). A major part of his plan was Universal Education, in which everyone could learn about everything, and better understand each other and so tolerate their religious differences and live side by side. His ideas were to have a lasting influence on education, even though the peace that followed the Thirty Years War only entrenched the changes in his homeland that made his life there impossible. The image above is from a portrait of Comenius by Jürgen Ovens, 1650 - 1670, painted while he was living in Amsterdam and held in the Rikjsmuseum With Vladimir Urbanek Senior Researcher in the Department of Comenius Studies and Early Modern Intellectual History at the Institute of Philosophy of the Czech Academy of Sciences Suzanna Ivanic Lecturer in Early Modern European History at the University of Kent And Howard Hotson Professor of Early Modern Intellectual History at the University of Oxford and Fellow of St Anne’s College Producer: Simon Tillotson

Melvyn Bragg and guests discuss two of China’s greatest poets, Li Bai and Du Fu, who wrote in the 8th century in the Tang Era. Li Bai (701-762AD) is known for personal poems, many of them about drinking wine, and for finding the enjoyment in life. Du Fu (712-770AD), a few years younger, is more of an everyman, writing in the upheaval of the An Lushan Rebellion (755-763AD). Together they have been a central part of Chinese culture for over a millennium, reflecting the balance between the individual and the public life, and one sign of their enduring appeal is that there is rarely agreement on which of them is the greater. The image above is intended to depict Du Fu. With Tim Barrett Professor Emeritus of East Asian History at SOAS, University of London Tian Yuan Tan Shaw Professor of Chinese at the University of Oxford and Professorial Fellow at University College And Frances Wood Former Curator of the Chinese Collections at the British Library Producer: Simon Tillotson

Melvyn Bragg and guests discuss the impact of David I of Scotland (c1084-1153) on his kingdom and on neighbouring lands. The youngest son of Malcolm III, he was raised in exile in the Anglo-Norman court and became Earl of Huntingdon and Prince of Cumbria before claiming the throne in 1124. He introduced elements of what he had learned in England and, in the next decades, his kingdom saw new burghs, new monasteries, new ways of governing and the arrival of some very influential families, earning him the reputation of The Perfect King. With Richard Oram Professor of Medieval and Environmental History at the University of Stirling Alice Taylor Professor of Medieval History at King’s College London And Alex Woolf Senior Lecturer in History at the University of St Andrews Producer: Simon Tillotson

Melvyn Bragg and guests discuss the accounts by Eusebius of Caesarea (c260-339 AD) and others of the killings of Christians in the first three centuries after the crucifixion of Jesus. Eusebius was writing in a time of peace, after The Great Persecution that had started with Emperor Diocletian in 303 AD and lasted around eight years. Many died under Diocletian, and their names are not preserved, but those whose deaths are told by Eusebius became especially celebrated and their stories became influential. Through his writings, Eusebius shaped perceptions of what it meant to be a martyr in those years, and what it meant to be a Christian. The image above is of The Martyrdom of Saint Blandina (1886) at the Church of Saint-Blandine de Lyon, France With: Candida Moss Edward Cadbury Professor of Theology at the University of Birmingham Kate Cooper Professor of History at Royal Holloway, University of London And James Corke-Webster Senior Lecturer in Classics, History and Liberal Arts at King’s College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the French playwright who, in 1791, wrote The Declaration of the Rights of Woman and of the Female Citizen. This was Olympe de Gouges (1748-93) and she was responding to The Declaration of the Rights of Man and of the Citizen from 1789, the start of the French Revolution which, by excluding women from these rights, had fallen far short of its apparent goals. Where the latter declared ‘men are born equal’, she asserted ‘women are born equal to men,’ adding, ‘since women are allowed to mount the scaffold, they should also be allowed to stand in parliament and defend their rights’. Two years later this playwright, novelist, activist and woman of letters did herself mount the scaffold, two weeks after Marie Antoinette, for the crime of being open to the idea of a constitutional monarchy and, for two hundred years, her reputation died with her, only to be revived with great vigour in the last 40 years. With Catriona Seth Marshal Foch Professor of French Literature at the University of Oxford Katherine Astbury Professor of French Studies at the University of Warwick And Sanja Perovic Reader in 18th century French studies at King’s College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of our ancestors, Homo erectus, who thrived on Earth for around two million years whereas we, Homo sapiens, emerged only in the last three hundred thousand years. Homo erectus, or Upright Man, spread from Africa to Asia and it was on the Island of Java that fossilised remains were found in 1891 in an expedition led by Dutch scientist Eugène Dubois. Homo erectus people adapted to different habitats, ate varied food, lived in groups, had stamina to outrun their prey; and discoveries have prompted many theories on the relationship between their diet and the size of their brains, on their ability as seafarers, on their creativity and on their ability to speak and otherwise communicate. The image above is from a diorama at the Moesgaard Museum in Denmark, depicting the Turkana Boy referred to in the programme. With Peter Kjærgaard Director of the Natural History Museum of Denmark and Professor of Evolutionary History at the University of Copenhagen José Joordens Senior Researcher in Human Evolution at Naturalis Biodiversity Centre and Professor of Human Evolution at Maastricht University And Mark Maslin Professor of Earth System Science at University College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the influential novella of John Polidori (1795-1821) published in 1819 and attributed first to Lord Byron (1788-1824) who had started a version of it in 1816 at the Villa Diodati in the Year Without A Summer. There Byron, his personal physician Polidori, Mary and Percy Shelley and Claire Clairmont had whiled away the weeks of miserable weather by telling ghost stories, famously giving rise to Mary Shelley's 'Frankenstein'. Emerging soon after, 'The Vampyre' thrilled readers with its aristocratic Lord Ruthven who glutted his thirst with the blood of his victims, his status an abrupt change from the stories of peasant vampires of eastern and central Europe that had spread in the 18th Century with the expansion of the Austro-Hungarian empire. The connection with Lord Byron gave the novella a boost, and soon 'The Vampyre' spawned West End plays, penny dreadfuls such as 'Varney the Vampire', Bram Stoker’s 'Dracula', F.W Murnau's film 'Nosferatu A Symphony of Horror', and countless others. The image above is of Bela Lugosi (1882-1956) as Count Mora in Metro-Goldwyn-Meyer's 'Vampires of Prague' (1935) With Nick Groom Professor of Literature in English at the University of Macau Samantha George Associate Professor of Research in Literature at the University of Hertfordshire And Martyn Rady Professor Emeritus of Central European History at University College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the astonishing work of Michelangelo (1477-1564) in this great chapel in the Vatican, firstly the ceiling with images from Genesis (of which the image above is a detail) and later The Last Judgement on the altar wall. For the Papacy, Michelangelo's achievement was a bold affirmation of the spiritual and political status of the Vatican, of Rome and of the Catholic Church. For the artist himself, already famous as the sculptor of David in Florence, it was a test of his skill and stamina, and of the potential for art to amaze which he realised in his astonishing mastery of the human form. With Catherine Fletcher Professor of History at Manchester Metropolitan University Sarah Vowles The Smirnov Family Curator of Italian and French Prints and Drawings at the British Museum And Matthias Wivel The Aud Jebsen Curator of Sixteenth-Century Italian Paintings at the National Gallery Producer: Simon Tillotson

Melvyn Bragg and guests discuss what is reputedly the most performed of all Greek tragedies. Antigone, by Sophocles (c496-c406 BC), is powerfully ambiguous, inviting the audience to reassess its values constantly before the climax of the play resolves the plot if not the issues. Antigone is barely a teenager and is prepared to defy her uncle Creon, the new king of Thebes, who has decreed that nobody should bury the body of her brother, a traitor, on pain of death. This sets up a conflict between generations, between the state and the individual, uncle and niece, autocracy and pluralism, and it releases an enormous tragic energy that brings sudden death to Antigone, her fiance Haemon who is also Creon's son, and to Creon's wife Eurydice, while Creon himself is condemned to a living death of grief. With Edith Hall Professor of Classics at Durham University Oliver Taplin Emeritus Professor of Classics, University of Oxford And Lyndsay Coo Senior Lecturer in Ancient Greek Language and Literature at the University of Bristol Producer: Simon Tillotson

Melvyn Bragg and guests discuss the idea of charismatic authority developed by Max Weber (1864-1920) to explain why people welcome some as their legitimate rulers and follow them loyally, for better or worse, while following others only dutifully or grudgingly. Weber was fascinated by those such as Napoleon (above) and Washington who achieved power not by right, as with traditional monarchs, or by law as with the bureaucratic world around him in Germany, but by revolution or insurrection. Drawing on the experience of religious figures, he contended that these leaders, often outsiders, needed to be seen as exceptional, heroic and even miraculous to command loyalty, and could stay in power for as long as the people were enthralled and the miracles they had promised kept coming. After the Second World War, Weber's idea attracted new attention as a way of understanding why some reviled leaders once had mass support and, with the arrival of television, why some politicians were more engaging and influential on screen than others. With Linda Woodhead The FD Maurice Professor and Head of the Department of Theology and Religious Studies at King's College London David Bell The Lapidus Professor in the Department of History at Princeton University And Tom Wright Reader in Rhetoric at the University of Sussex Producer: Simon Tillotson

Melvyn Bragg and guests discuss the study of earthquakes. A massive earthquake in 1755 devastated Lisbon, and this disaster helped inspire a new science of seismology which intensified after San Francisco in 1906 and advanced even further with the need to monitor nuclear tests around the world from 1945 onwards. While we now know so much more about what lies beneath the surface of the Earth, and how rocks move and crack, it remains impossible to predict when earthquakes will happen. Thanks to seismology, though, we have a clearer idea of where earthquakes will happen and how to make some of them less hazardous to lives and homes. With Rebecca Bell Senior lecturer in Geology and Geophysics at Imperial College London Zoe Mildon Lecturer in Earth Sciences and Future Leaders Fellow at the University of Plymouth And James Hammond Reader in Geophysics at Birkbeck, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the ancient Sanskrit text the Arthashastra, regarded as one of the major works of Indian literature. Written in the style of a scientific treatise, it provides rulers with a guide on how to govern their territory and sets out what the structure, economic policy and foreign affairs of the ideal state should be. According to legend, it was written by Chanakya, a political advisor to the ruler Chandragupta Maurya (reigned 321 – 297 BC) who founded the Mauryan Empire, the first great Empire in the Indian subcontinent. As the Arthashastra asserts that a ruler should pursue his goals ruthlessly by whatever means is required, it has been compared with the 16th-century work The Prince by Machiavelli. Today, it is widely viewed as presenting a sophisticated and refined analysis of the nature, dynamics and challenges of rulership, and scholars value it partly because it undermines colonial stereotypes of what early South Asian society was like. With Jessica Frazier Lecturer in the Study of Religion at the University of Oxford and a Fellow of the Oxford Centre for Hindu Studies James Hegarty Professor of Sanskrit and Indian Religions at Cardiff University And Deven Patel Associate Professor of South Asia Studies at the University of Pennsylvania Producer: Simon Tillotson

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Melvyn Bragg and guests discuss the Russian prince who became a leading anarchist and famous scientist. Kropotkin (1842 - 1921) was born into privilege, very much in the highest circle of Russian society as a pageboy for the Tsar, before he became a republican in childhood and dropped the title 'Prince'. While working in Siberia, he started reading about anarchism and that radicalised him further, as did his observations of Siberian villagers supporting each other without (or despite) a role for the State. He made a name for himself as a geographer but soon his politics landed him in jail in St Petersburg, from which he escaped to exile in England where he was fêted, with growing fame leading to lecture tours in the USA. His time in Siberia also inspired his ideas on the importance of mutual aid in evolution, a counter to the dominant idea from Darwin and Huxley that life was a gladiatorial combat in which only the fittest survived. Kropotkin became such a towering figure in public life that, returning to Russia, he was able to challenge Lenin without reprisal, and Lenin in turn permitted his enormous public funeral there, attended by 20,000 mourners. With Ruth Kinna Professor of Political Theory at Loughborough University Lee Dugatkin Professor of Biology at the University of Louisville And Simon Dixon The Sir Bernard Pares Professor of Russian History at University College London

Melvyn Bragg and guests discuss William Shakespeare's famous tragedy, written in the early 1590s after a series of histories and comedies. His audience already knew the story of the feuding Capulets and Montagues in Verona and the fate of the young lovers from their rival houses, but not how Shakespeare would tell it and, with his poetry and plotting, he created a work so powerful and timeless that his play has shaped the way we talk of love, especially young love, ever since. The image above is of Mrs Patrick Campbell ('Mrs Pat') as Juliet and Johnson Forbes-Robinson as Romeo in a scene from the 1895 production at the Lyceum Theatre, London With Helen Hackett Professor of English Literature at University College London Paul Prescott Professor of English and Theatre at the University of California Merced And Emma Smith Professor of Shakespeare Studies at Hertford College, University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of the most celebrated thinkers of the twentieth century. Walter Benjamin (1892-1940) was a German Jewish philosopher, critic, historian, an investigator of culture, a maker of radio programmes and more. Notably, in his Arcades Project, he looked into the past of Paris to understand the modern age and, in The Work of Art in the Age of Mechanical Reproduction, examined how the new media of film and photography enabled art to be politicised, and politics to become a form of art. The rise of the Nazis in Germany forced him into exile, and he worked in Paris in dread of what was to come; when his escape from France in 1940 was blocked at the Spanish border, he took his own life. With Esther Leslie Professor of Political Aesthetics at Birkbeck, University of London Kevin McLaughlin Dean of the Faculty and Professor of English, Comparative Literature and German Studies at Brown University And Carolin Duttlinger Professor of German Literature and Culture at the University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the momentum behind teetotalism in 19th Century Britain, when calls for moderation gave way to complete abstinence in pursuit of a better life. Although arguments for temperance had been made throughout the British Isles beforehand, the story of the organised movement in Britain is often said to have started in 1832 in Preston, when Joseph Livesey and seven others gave a pledge to abstain. The movement grew quickly, with Temperance Halls appearing as new social centres in towns in place of pubs, and political parties being drawn into taking sides either to support abstinence or impose it or reject it. The image above, which appeared in The Teetotal Progressionist in 1852, is an example of the way in which images contained many points of temperance teaching, and is © Copyright Livesey Collection at the University of Central Lancashire. With Annemarie McAllister Senior Research Fellow in History at the University of Central Lancashire James Kneale Associate Professor in Geography at University College London And David Beckingham Associate Professor in Cultural and Historical Geography at the University of Nottingham Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of the outstanding French writers of the twentieth century. The novels of Sidonie-Gabrielle Colette (1873 - 1954) always had women at their centre, from youth to mid-life to old age, and they were phenomenally popular, at first for their freshness and frankness about women’s lives, as in the Claudine stories, and soon for their sheer quality as she developed as a writer. Throughout her career she intrigued readers by inserting herself, or a character with her name, into her works, fictionalising her life as a way to share her insight into the human experience. With Diana Holmes Professor of French at the University of Leeds Michèle Roberts Writer, novelist, poet and Emeritus Professor of Creative Writing at the University of East Anglia And Belinda Jack Fellow and Tutor in French Literature and Language at Christ Church, University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the system that flourished from 1870 when gold became dominant and more widely available, following gold rushes in California and Australia. Banknotes could be exchanged for gold at central banks, the coins in circulation could be gold (as with the sovereign in the image above, initially worth £1), gold could be freely imported and exported, and many national currencies around the world were tied to gold and so to each other. The idea began in Britain, where sterling was seen as good as gold, and when other countries rushed to the Gold Standard the confidence in their currencies grew, and world trade took off and, for a century, gold was seen as a vital component of the world economy, supporting stability and confidence. The system came with constraints on government ability to respond to economic crises, though, and has been blamed for deepening and prolonging the Great Depression of the 1930s. With Catherine Schenk Professor of Economic and Social History at the University of Oxford Helen Paul Lecturer in Economics and Economic History at the University of Southampton And Matthias Morys Senior Lecturer in Economic History at the University of York Produced by Eliane Glaser and Simon Tillotson

Melvyn Bragg and guests discuss Thomas Hardy (1840 -1928) and his commitment to poetry, which he prized far above his novels. In the 1890s, once he had earned enough from his fiction, Hardy stopped writing novels altogether and returned to the poetry he had largely put aside since his twenties. He hoped that he might be ranked one day alongside Shelley and Byron, worthy of inclusion in a collection such as Palgrave's Golden Treasury which had inspired him. Hardy kept writing poems for the rest of his life, in different styles and metres, and he explored genres from nature, to war, to epic. Among his best known are what he called his Poems of 1912 to 13, responding to his grief at the death of his first wife, Emma (1840 -1912), who he credited as the one who had made it possible for him to leave his work as an architect's clerk and to write the novels that made him famous. With Mark Ford Poet, and Professor of English and American Literature, University College London. Jane Thomas Emeritus Professor of English at the University of Hull and Senior Visiting Research Fellow at the University of Leeds And Tim Armstrong Professor of Modern English and American Literature at Royal Holloway, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the Austrian-born film director Fritz Lang (1890-1976), who was one of the most celebrated film-makers of the 20th century. He worked first in Weimar Germany, creating a range of films including the startling and subversive Mabuse the Gambler and the iconic but ruinously expensive Metropolis before arguably his masterpiece, M, with both the police and the underworld hunting for a child killer in Berlin, his first film with sound. The rise of the Nazis prompted Lang's move to Hollywood where he developed some of his Weimar themes in memorable and disturbing films such as Fury and The Big Heat. With Stella Bruzzi Professor of Film and Dean of Arts and Humanities at University College London Joe McElhaney Professor of Film Studies at Hunter College, City University of New York And Iris Luppa Senior Lecturer in Film Studies in the Division of Film and Media at London South Bank University Producer: Simon Tillotson

Melvyn Bragg and guests discuss the empire that flourished in the Late Bronze Age in what is now Turkey, and which, like others at that time, mysteriously collapsed. For the next three thousand years these people of the Land of Hatti, as they called themselves, were known only by small references to their Iron Age descendants in the Old Testament and by unexplained remains in their former territory. Discoveries in their capital of Hattusa just over a century ago brought them back to prominence, including cuneiform tablets such as one (pictured above) which relates to an agreement with their rivals, the Egyptians. This agreement has since become popularly known as the Treaty of Kadesh and described as the oldest recorded peace treaty that survives to this day, said to have followed a great chariot battle with Egypt in 1274 BC near the Orontes River in northern Syria. With Claudia Glatz Professor of Archaeology at the University of Glasgow Ilgi Gercek Assistant Professor of Ancient Near Eastern Languages and History at Bilkent University And Christoph Bachhuber Lecturer in Archaeology at St John’s College, University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss Charles Dickens' novella, written in 1843 when he was 31, which has become intertwined with his reputation and with Christmas itself. Ebenezer Scrooge is the miserly everyman figure whose joyless obsession with money severs him from society and his own emotions, and he is only saved after recalling his lonely past, seeing what he is missing now and being warned of his future, all under the guidance of the ghosts of Christmases Past, Present and Yet To Come. Redeemed, Scrooge comes to care in particular about one of the many minor characters in the story who make a great impact, namely Tiny Tim, the disabled child of the poor and warm-hearted Cratchit family, with his cry, "God bless us, every one!" With Juliet John Professor of English Literature and Dean of Arts and Social Sciences at City, University of London Jon Mee Professor of Eighteenth-Century Studies at the University of York And Dinah Birch Pro-Vice-Chancellor for Cultural Engagement and Professor of English Literature at the University of Liverpool Producer: Simon Tillotson

Melvyn Bragg and guests discuss the violent protests in China on 4th May 1919 over the nation's humiliation in the Versailles Treaty after World War One. China had supported the Allies, sending workers to dig trenches, and expected to regain the German colonies on its territory, but the Allies and China's leaders chose to give that land to Japan instead. To protestors, this was a travesty and reflected much that was wrong with China, with its corrupt leaders, division by warlords, weakness before Imperial Europe and outdated ideas and values. The movement around 4th May has since been seen as a watershed in China’s development in the 20th century, not least as some of those connected with the movement went on to found the Communist Party of China a few years later. The image above is of students from Peking University marching with banners during the May Fourth demonstrations in 1919. With Rana Mitter Professor of the History and Politics of Modern China and Fellow of St Cross College, University of Oxford Elisabeth Forster Lecturer in Chinese History at the University of Southampton And Song-Chuan Chen Associate Professor in History at the University of Warwick Producer: Simon Tillotson

Melvyn Bragg and guests discuss the events of 21st October 1805, in which the British fleet led by Nelson destroyed a combined Franco-Spanish fleet in the Atlantic off the coast of Spain. Nelson's death that day was deeply mourned in Britain, and his example proved influential, and the battle was to help sever ties between Spain and its American empire. In France meanwhile, even before Nelson's body was interred at St Paul's, the setback at Trafalgar was overshadowed by Napoleon's decisive victory over Russia and Austria at Austerlitz, though Napoleon's search for his lost naval strength was to shape his plans for further conquests. The image above is from 'The Battle of Trafalgar' by JMW Turner (1824). With James Davey Lecturer in Naval and Maritime History at the University of Exeter Marianne Czisnik Independent researcher on Nelson and editor of his letters to Lady Hamilton And Kenneth Johnson Research Professor of National Security at Air University, Alabama Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of Plato's most striking dialogues, in which he addresses the real nature of power and freedom, and the relationship between pleasure and true self-interest. As he tests these ideas, Plato creates powerful speeches, notably from Callicles who claims that laws of nature trump man-made laws, that might is right, and that rules are made by weak people to constrain the strong in defiance of what is natural and proper. Gorgias is arguably the most personal of all of Plato's dialogues, with its hints of a simmering fury at the system in Athens that put his mentor Socrates to death, and where rhetoric held too much sway over people. With Angie Hobbs Professor of the Public Understanding of Philosophy at the University of Sheffield Frisbee Sheffield University Lecturer in Classics and Fellow of Downing College, University of Cambridge And Fiona Leigh Associate Professor in the Department of Philosophy at University College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the British phase of a movement that spread across Europe in the mid-19th and early 20th centuries. Influenced by Charles Baudelaire and by Walter Pater, these Decadents rejected the mainstream Victorian view that art needed a moral purpose, and valued instead the intense sensations art provoked, celebrating art for art’s sake. Oscar Wilde was at its heart, Aubrey Beardsley adorned it with his illustrations and they, with others, provoked moral panic with their supposed degeneracy. After burning brightly, the movement soon lost its energy in Britain yet it has proved influential. The illustration above, by Beardsley, is from the cover of the first edition of The Yellow Book in April 1894. With Neil Sammells Professor of English and Irish Literature and Deputy Vice Chancellor at Bath Spa University Kate Hext Senior Lecturer in English Literature at the University of Exeter And Alex Murray Senior Lecturer in English at Queen’s University, Belfast Producer: Simon Tillotson

Melvyn Bragg and guests discuss William Herschel (1738 – 1822) and his sister Caroline Herschel (1750 – 1848) who were born in Hanover and made their reputation in Britain. William was one of the most eminent astronomers in British history. Although he started life as a musician, as a young man he became interested in studying the night sky. With an extraordinary talent, he constructed telescopes that were able to see further and more clearly than any others at the time. He is most celebrated today for discovering the planet Uranus and detecting what came to be known as infrared radiation. Caroline also became a distinguished astronomer, discovering several comets and collaborating with her brother. With Monica Grady Professor of Planetary and Space Sciences at the Open University Carolin Crawford Institute of Astronomy, Cambridge and an Emeritus Fellow of Emmanuel College, University of Cambridge And Jim Bennett Keeper Emeritus at the Science Museum in London. Studio producer: John Goudie

Melvyn Bragg and guests discuss an early masterpiece of French epic poetry, from the 12th Century. It is a reimagining of Charlemagne’s wars in Spain in the 8th Century in which Roland, his most valiant knight, chooses death before dishonour, guarding the army’s rear from a pagan ambush as it heads back through the Roncesvalles Pass in the Pyrenees. If he wanted to, Roland could blow on his oliphant, his elephant tusk horn, to summon help by calling back Charlemagne's army, but according to his values that would bring shame both on him and on France, and he would rather keep killing pagans until he is the last man standing and the last to die. The image above is taken from an illustration of Charlemagne finding Roland after the Battle of Roncevaux/Roncesvalles, from 'Les Grandes Chroniques de France', c.1460 by Jean Fouquet, Bibliotheque Nationale, Paris, Ms Fr 6465 f.113 With Laura Ashe Professor of English Literature and Fellow in English at Worcester College, University of Oxford Miranda Griffin Assistant Professor of Medieval French at the University of Cambridge and Fellow of Murray Edwards College And Luke Sunderland Professor in the School of Modern Languages and Cultures at Durham University Studio producer: John Goudie

Melvyn Bragg and guests discuss the simple animals which informed Charles Darwin's first book, The Structure and Distribution of Coral Reefs, published in 1842. From corals, Darwin concluded that the Earth changed very slowly and was not fashioned by God. Now coral reefs, which some liken to undersea rainforests, are threatened by human activity, including fishing, pollution and climate change. With Steve Jones Senior Research Fellow in Genetics at University College London Nicola Foster Lecturer in Marine Biology at the University of Plymouth And Gareth Williams Associate Professor in Marine Biology at Bangor University School of Ocean Sciences Producer Simon Tilllotson.

Melvyn Bragg and guests discuss the author and philosopher Iris Murdoch (1919 - 1999). In her lifetime she was most celebrated for her novels such as The Bell and The Black Prince, but these are now sharing the spotlight with her philosophy. Responding to the horrors of the Second World War, she argued that morality was not subjective or a matter of taste, as many of her contemporaries held, but was objective, and good was a fact we could recognize. To tell good from bad, though, we would need to see the world as it really is, not as we want to see it, and her novels are full of characters who are not yet enlightened enough to do that. With Anil Gomes Fellow and Tutor in Philosophy at Trinity College, University of Oxford Anne Rowe Visiting Professor at the University of Chichester and Emeritus Research Fellow with the Iris Murdoch Archive Project at Kingston University And Miles Leeson Director of the Iris Murdoch Research Centre and Reader in English Literature at the University of Chichester Producer: Simon Tillotson

Melvyn Bragg and guests discuss the republic that emerged from the union of the Kingdom of Poland and Grand Duchy of Lithuania in the 14th Century. At first this was a personal union, similar to that of James I and VI in Britain, but this was formalised in 1569 into a vast republic, stretching from the Baltic to the Black Sea. Kings and princes from across Europe would compete for parliament to elect them King and Grand Duke, and the greatest power lay with the parliaments. When the system worked well, the Commonwealth was a powerhouse, and it was their leader Jan Sobieski who relieved the siege of Vienna in 1683, defeating the Ottomans. Its neighbours exploited its parliament's need for unanimity, though, and this contributed to its downfall. Austria, Russia and Prussia divided its territory between them from 1772, before the new, smaller states only emerged in the 20th Century. The image above is Jan III Sobieski (1629-1696), King of Poland and Grand Duke of Lithuania, at the Battle of Vienna 1683, by Marcello Bacciarelli (1731-1818) With Robert Frost The Burnett Fletcher Chair of History at the University of Aberdeen Katarzyna Kosior Lecturer in Early Modern History at Northumbria University And Norman Davies Professor Emeritus in History and Honorary Fellow of St Antony’s College, University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the race to build an atom bomb in the USA during World War Two. Before the war, scientists in Germany had discovered the potential of nuclear fission and scientists in Britain soon argued that this could be used to make an atom bomb, against which there could be no defence other than to own one. The fear among the Allies was that, with its head start, Germany might develop the bomb first and, unmatched, use it on its enemies. The USA took up the challenge in a huge engineering project led by General Groves and Robert Oppenheimer and, once the first bomb had been exploded at Los Alamos in July 1945, it appeared inevitable that the next ones would be used against Japan with devastating results. The image above is of Robert Oppenheimer and General Groves examining the remains of one the bases of the steel test tower, at the atomic bomb Trinity Test site, in September 1945. With Bruce Cameron Reed The Charles A. Dana Professor of Physics Emeritus at Alma College, Michigan Cynthia Kelly Founder and President of the Atomic Heritage Foundation And Frank Close Emeritus Professor of Theoretical Physics at the University of Oxford and a Fellow of Exeter College, Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss Anne Bronte's second novel, published in 1848, which is now celebrated alongside those of her sisters but which Charlotte Bronte tried to suppress as a 'mistake'. It examines the life of Helen, who has escaped her abusive husband Arthur Huntingdon with their son to live at Wildfell Hall as a widow under the alias 'Mrs Graham', and it exposes the men in her husband's circle who gave her no choice but to flee. Early critics attacked the novel as coarse, as misrepresenting male behaviour, and as something no woman or girl should ever read; soon after Anne's death, Charlotte suggested the publisher should lose it for good. In recent decades, though, its reputation has climbed and it now sits with Jane Eyre and Wuthering Heights as one of the great novels by the Bronte sisters. The image above shows Tara Fitzgerald as Helen Graham in a 1996 BBC adaptation. With Alexandra Lewis Lecturer in English and Creative Writing at the University of Newcastle (Australia) Marianne Thormählen Professor Emerita in English Studies, Lund University And John Bowen Professor of Nineteenth Century Literature at the University of York Producer: Simon Tillotson

Melvyn Bragg and guests discuss the Greek writer known as the father of histories, dubbed by his detractors as the father of lies. Herodotus (c484 to 425 BC or later) was raised in Halicarnassus in modern Turkey when it was part of the Persian empire and, in the years after the Persian Wars, set about an inquiry into the deep background to those wars. He also aimed to preserve what he called the great and marvellous deeds of Greeks and non-Greeks, seeking out the best evidence for past events and presenting the range of evidence for readers to assess. Plutarch was to criticise Herodotus for using this to promote the least flattering accounts of his fellow Greeks, hence the 'father of lies', but the depth and breadth of his Histories have secured his reputation from his lifetime down to the present day. With Tom Harrison Professor of Ancient History at the University of St Andrews Esther Eidinow Professor of Ancient History at the University of Bristol And Paul Cartledge A. G. Leventis Senior Research Fellow at Clare College, University of Cambridge Producer: Simon Tillotson

Melvyn Bragg and guests discuss the remarkable diversity of the animals that dominated life on land in the Triassic, before the rise of the dinosaurs in the Jurassic, and whose descendants are often described wrongly as 'living fossils'. For tens of millions of years, the ancestors of alligators and Nile crocodiles included some as large as a bus, some running on two legs like a T Rex and some that lived like whales. They survived and rebounded from a series of extinction events but, while the range of habitats of the dinosaur descendants such as birds covers much of the globe, those of the crocodiles have contracted, even if the animals themselves continue to evolve today as quickly as they ever have. With Anjali Goswami Research Leader in Life Sciences and Dean of Postgraduate Education at the Natural History Museum Philip Mannion Lecturer in the Department of Earth Sciences at University College London And Steve Brusatte Professor of Palaeontology and Evolution at the University of Edinburgh Producer Simon Tillotson

Melvyn Bragg and guests discuss the collection of poems published in 1609 by Thomas Thorpe: Shakespeare’s Sonnets, “never before imprinted”. Yet, while some of Shakespeare's other poems and many of his plays were often reprinted in his lifetime, the Sonnets were not a publishing success. They had to make their own way, outside the main canon of Shakespeare’s work: wonderful, troubling, patchy, inspiring and baffling, and they have appealed in different ways to different times. Most are addressed to a man, something often overlooked and occasionally concealed; one early and notorious edition even changed some of the pronouns. With: Hannah Crawforth Senior Lecturer in Early Modern Literature at King’s College London Don Paterson Poet and Professor of Poetry at the University of St Andrews And Emma Smith Professor of Shakespeare Studies at Hertford College, Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the life and ideas of one of the great historians, best known for his History of the Decline and Fall of the Roman Empire (published 1776-89). According to Gibbon (1737-94) , the idea for this work came to him on 15th of October 1764 as he sat musing amidst the ruins of Rome, while barefooted friars were singing vespers in the Temple of Jupiter. Decline and Fall covers thirteen centuries and is an enormous intellectual undertaking and, on publication, it became a phenomenal success across Europe. The image above is of Edward Gibbon by Henry Walton, oil on mahogany panel, 1773. With David Womersley The Thomas Wharton Professor of English Literature at St Catherine’s College, University of Oxford Charlotte Roberts Lecturer in English at University College London And Karen O’Brien Professor of English Literature at the University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss Charles Booth's survey, The Life and Labour of the People in London, published in 17 volumes from 1889 to 1903. Booth (1840-1916), a Liverpudlian shipping line owner, surveyed every household in London to see if it was true, as claimed, that as many as a quarter lived in poverty. He found that it was closer to a third, and that many of these were either children with no means of support or older people no longer well enough to work. He went on to campaign for an old age pension, and broadened the impact of his findings by publishing enhanced Ordnance Survey maps with the streets coloured according to the wealth of those who lived there. The image above is of an organ grinder on a London street, circa 1893, with children dancing to the Pas de Quatre With Emma Griffin Professor of Modern British History at the University of East Anglia Sarah Wise Adjunct Professor at the University of California And Lawrence Goldman Emeritus Fellow in History at St Peter’s College, University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the insight into our relationship with the world that Immanuel Kant (1724-1804) shared in his book The Critique of Pure Reason in 1781. It was as revolutionary, in his view, as when the Polish astronomer Copernicus realised that Earth revolves around the Sun rather than the Sun around Earth. Kant's was an insight into how we understand the world around us, arguing that we can never know the world as it is, but only through the structures of our minds which shape that understanding. This idea, that the world depends on us even though we do not create it, has been one of Kant’s greatest contributions to philosophy and influences debates to this day. The image above is a portrait of Immanuel Kant by Friedrich Wilhelm Springer With Fiona Hughes Senior Lecturer in Philosophy at the University of Essex Anil Gomes Associate Professor and Fellow and Tutor in Philosophy at Trinity College, Oxford And John Callanan Senior Lecturer in Philosophy at King’s College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the period between the execution of Charles I in 1649 and the unexpected restoration of his son Charles II in 1660, known as The Interregnum. It was marked in England by an elusive pursuit of stability, with serious consequences in Scotland and notorious ones in Ireland. When Parliament executed Charles it had also killed Scotland and Ireland’s king, without their consent; Scotland immediately declared Charles II king of Britain, and Ireland too favoured Charles. In the interests of political and financial security, Parliament's forces, led by Oliver Cromwell, soon invaded Ireland and then turned to defeating Scotland. However, the improvised power structures in England did not last and Oliver Cromwell's death in 1658 was followed by the threat of anarchy. In England, Charles II had some success in overturning the changes of the 1650s but there were lasting consequences for Scotland and the notorious changes in Ireland were entrenched. The Dutch image of Oliver Cromwell, above, was published by Joost Hartgers c1649 With Clare Jackson Senior Tutor at Trinity Hall, University of Cambridge Micheál Ó Siochrú Professor in Modern History at Trinity College Dublin And Laura Stewart Professor in Early Modern History at the University of York Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of the great novels of China’s Ming era, and perhaps the most loved. Written in 1592, it draws on the celebrated travels of a real monk from China to India a thousand years before, and on a thousand years of retellings of that story, especially the addition of a monkey as companion who, in the novel, becomes supersimian. For most readers the monk, Tripitaka, is upstaged by this irrepressible Monkey with his extraordinary powers, accompanied by the fallen but recovering deities, Pigsy and Sandy. The image above, from the caricature series Yoshitoshi ryakuga or Sketches by Yoshitoshi, is of Monkey creating an army by plucking out his fur and blowing it into the air, and each hair becomes a monkey-warrior. With Julia Lovell Professor of Modern Chinese History and Literature at Birkbeck, University of London Chiung-yun Evelyn Liu Associate Research Fellow at the Institute of Chinese Literature and Philosophy, Academia Sinica, Taiwan And Craig Clunas Professor Emeritus of the History of Art at Trinity College, University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the search for Longitude while at sea. Following efforts by other maritime nations, the British Government passed the Longitude Act in 1714 to reward anyone who devised reliable means for ships to determine their longitude at sea. Mariners could already calculate how far they were north or south, the Latitude, using the Pole Star, but voyaging across the Atlantic to the Caribbean was much less predictable as navigators could not be sure how far east or west they were, a particular problem when heading for islands. It took fifty years of individual genius and collaboration in Britain and across Europe, among astronomers, clock makers, mathematicians and sailors, for the problem to be resolved. With Rebekah Higgitt Principal Curator of Science at National Museums Scotland Jim Bennett Keeper Emeritus at the Science Museum And Simon Schaffer Professor of History and Philosophy of Science at the University of Cambridge Producer: Simon Tillotson

Melvyn Bragg and guests discuss the years of bloody conflict that saw Simon de Montfort (1205-65) become the most powerful man in England, with Henry III as his prisoner. With others, he had toppled Henry in 1258 in a secret, bloodless coup and established provisions for more parliaments with broader representation, for which he was later known as the Father of the House of Commons. When Henry III regained power in 1261, Simon de Montfort rallied forces for war, with victory at Lewes in 1264 and defeat and dismemberment in Evesham the year after. Although praised for supporting parliaments, he also earned a reputation for unleashing dark, violent forces in English politics and, infamously, his supporters murdered hundreds of Jewish people in London and elsewhere. With David Carpenter Professor of Medieval History at King’s College London Louise Wilkinson Professor of Medieval Studies at the University of Lincoln And Sophie Thérèse Ambler Lecturer in Later Medieval British and European History at Lancaster University Producer: Simon Tillotson

Melvyn Bragg and guests discuss the Roman poet Publius Ovidius Naso (43BC-17/18AD) who, as he described it, was destroyed by 'carmen et error', a poem and a mistake. His works have been preserved in greater number than any of the poets of his age, even Virgil, and have been among the most influential. The versions of many of the Greek and Roman myths we know today were his work, as told in his epic Metamorphoses and, together with his works on Love and the Art of Love, have inspired and disturbed readers from the time they were created. Despite being the most prominent poet in Augustan Rome at the time, he was exiled from Rome to Tomis on the Black Sea Coast where he remained until he died. It is thought that the 'carmen' that led to his exile was the Art of Love, Ars Amatoria, supposedly scandalising Augustus, but the 'error' was not disclosed. With Maria Wyke Professor of Latin at University College London Gail Trimble Brown Fellow and Tutor in Classics at Trinity College at the University of Oxford And Dunstan Lowe Senior Lecturer in Latin Literature at the University of Kent Producer: Simon Tillotson

Melvyn Bragg and guests discuss the treaties France entered into with the United States of America in 1778, to give open support to the USA in its revolutionary war against Britain and to promote French trade across the Atlantic. This alliance had profound consequences for all three. The French navy, in particular, played a decisive role in the Americans’ victory in their revolution, but the great cost of supporting this overseas war fell on French taxpayers, highlighting the need for reforms which in turn led to the French Revolution. Then, when France looked to its American ally for support in the new French revolutionary wars with Britain, Americans had to choose where their longer term interests lay, and they turned back from the France that had supported them to the Britain they had just been fighting, and France and the USA fell into undeclared war at sea. The image above is a detail of Bataille de Yorktown by Auguste Couder, with Rochambeau commanding the French expeditionary force in 1781 With Frank Cogliano Professor of American History at the University of Edinburgh Kathleen Burk Professor Emerita of Modern and Contemporary History at University College London And Michael Rapport Reader in Modern European History at the University of Glasgow Producer: Simon Tillotson

Melvyn Bragg and guests discuss the form of Christianity adopted by Ostrogoths in the 4th century AD, which they learned from Roman missionaries and from their own contact with the imperial court at Constantinople. This form spread to the Vandals and the Visigoths, who took it into Roman Spain and North Africa, and the Ostrogoths brought it deeper into Italy after the fall of the western Roman empire. Meanwhile, with the Roman empire in the east now firmly committed to the Nicene Creed not the Arian, the Goths and Vandals faced conflict or conversion, as Arianism moved from an orthodox view to being a heresy that would keep followers from heaven and delay the Second Coming for all. The image above is the ceiling mosaic of the Arian Baptistry in Ravenna, commissioned by Theodoric, ruler of the Ostrogothic Kingdom of Italy, around the end of the 5th century With Judith Herrin Professor of Late Antique and Byzantine Studies, Emeritus, at King's College London Robin Whelan Lecturer in Mediterranean History at the University of Liverpool And Martin Palmer Visiting Professor in Religion, History and Nature at the University of Winchester Producer: Simon Tillotson

Melvyn Bragg and guests discuss Laplace (1749-1827) who was a giant in the world of mathematics both before and after the French Revolution. He addressed one of the great questions of his age, raised but side-stepped by Newton: was the Solar System stable, or would the planets crash into the Sun, as it appeared Jupiter might, or even spin away like Saturn threatened to do? He advanced ideas on probability, long the preserve of card players, and expanded them out across science; he hypothesised why the planets rotate in the same direction; and he asked if the Universe was deterministic, so that if you knew everything about all the particles then you could predict the future. He also devised the metric system and reputedly came up with the name 'metre'. With Marcus du Sautoy Simonyi Professor for the Public Understanding of Science and Professor of Mathematics at the University of Oxford Timothy Gowers Professor of Mathematics at the College de France And Colva Roney-Dougal Professor of Pure Mathematics at the University of St Andrews Producer: Simon Tillotson

Melvyn Bragg and guests discuss the conflict between Russia and Japan from February 1904 to September 1905, which gripped the world and had a profound impact on both countries. Wary of Russian domination of Korea, Japan attacked the Russian Fleet at Port Arthur and the ensuing war gave Russia a series of shocks, including the loss of their Baltic Fleet after a seven month voyage, which reverberated in the 1905 Revolution. Meanwhile Japan, victorious, advanced its goal of making Europe and America more wary in East Asia, combining rapid military modernisation and Samurai traditions when training its new peasant conscripts. The US-brokered peace failed to require Russia to make reparations, which became a cause of Japanese resentment towards the US. With Simon Dixon The Sir Bernard Pares Professor of Russian History at University College London Naoko Shimazu Professor of Humanities at Yale NUS College, Singapore And Oleg Benesch Reader in Modern History at the University of York Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of the most influential economists from the age of Adam Smith and Thomas Malthus. Ricardo (1772 -1823) reputedly made his fortune at the Battle of Waterloo, and he made his lasting impact with his ideas on free trade. At a time when nations preferred to be self-sufficient, to produce all their own food and manufacture their own goods, and to find markets for export rather than import, Ricardo argued for free trade even with rivals for the benefit of all. He contended that existing economic policy unduly favoured landlords above all others and needed to change, and that nations would be less likely to go to war with their trading partners if they were more reliant on each other. For the last two hundred years, Ricardo’s Theory of Comparative Advantage in support of free trade has been developed and reinterpreted by generations of economists across the political spectrum. With Matthew Watson Professor of Political Economy at the University of Warwick Helen Paul Lecturer in Economics and Economic History at the University of Southampton And Richard Whatmore Professor of Modern History at the University of St Andrews and Co-Director of the St Andrews Institute of Intellectual History Producer: Simon Tillotson

Melvyn Bragg and guests discuss Euripides' great tragedy, which was first performed in Athens in 405 BC when the Athenians were on the point of defeat and humiliation in a long war with Sparta. The action seen or described on stage was brutal: Pentheus, king of Thebes, is torn into pieces by his mother in a Bacchic frenzy and his grandparents condemned to crawl away as snakes. All this happened because Pentheus had denied the divinity of his cousin Dionysus, known to the audience as god of wine, theatre, fertility and religious ecstasy. The image above is a detail of a Red-Figure Cup showing the death of Pentheus (exterior) and a Maenad (interior), painted c. 480 BC by the Douris painter. This object can be found at the Kimbell Art Museum in Fort Worth, Texas. With Edith Hall Professor of Classics at King’s College London Emily Wilson Professor of Classical Studies at the University of Pennsylvania And Rosie Wyles Lecturer in Classical History and Literature at the University of Kent Producer: Simon Tillotson

Melvyn Bragg and guests discuss the devastating mass extinctions of the Late Devonian Period, roughly 370 million years ago, when around 70 percent of species disappeared. Scientists are still trying to establish exactly what happened, when and why, but this was not as sudden as when an asteroid hits Earth. The Devonian Period had seen the first trees and soils and it had such a diversity of sea life that it’s known as the Age of Fishes, some of them massive and armoured, and, in one of the iconic stages in evolution, some of them moving onto land for the first time. One of the most important theories for the first stage of this extinction is that the new soils washed into oceans, leading to algal blooms that left the waters without oxygen and suffocated the marine life. The image above is an abstract group of the huge, armoured Dunkleosteus fish, lost in the Late Devonian Extinction With Jessica Whiteside Associate Professor of Geochemistry in the Department of Ocean and Earth Science at the University of Southampton David Bond Professor of Geology at the University of Hull And Mike Benton Professor of Vertebrate Paleontology at the School of Life Sciences, University of Bristol.

In this 900th edition of the programme, Melvyn Bragg and guests discuss one of the best known and most influential of the poems of the Romantic movement. Samuel Taylor Coleridge (1772-1834) wrote The Rime of the Ancient Mariner in 1798 after discussions with his friend Wordsworth. He refined it for the rest of his life, and it came to define him, a foreshadowing of his opium-addicted, lonely wandering and deepening sense of guilt. The poem tells of a sailor compelled to tell and retell the story of a terrible voyage in his youth, this time as guests are heading to a wedding party, where he stoppeth one of three. The image above is from Gustave Doré's illustration of the mariner's shooting of the albatross, for an 1877 German language edition of the poem With Sir Jonathan Bate Professor of Environmental Humanities at Arizona State University Tom Mole Professor of English Literature and Book History at the University of Edinburgh And Rosemary Ashton Emeritus Quain Professor of English Language and Literature at University College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the man who, according to Machiavelli, was the last of the Five Good Emperors. Marcus Aurelius, 121 to 180 AD, has long been known as a model of the philosopher king, a Stoic who, while on military campaigns, compiled ideas on how best to live his life, and how best to rule. These ideas became known as his Meditations, and they have been treasured by many as an insight into the mind of a Roman emperor, and an example of how to avoid the corruption of power in turbulent times. The image above shows part of a bronze equestrian statue of Marcus Aurelius. With Simon Goldhill Professor of Greek Literature and Culture and Fellow of King’s College, Cambridge Angie Hobbs Professor of the Public Understanding of Philosophy at the University of Sheffield And Catharine Edwards Professor of Classics and Ancient History at Birkbeck, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the idea and experience of Christian pilgrimage in Europe from the 12th to the 15th centuries, which figured so strongly in the imagination of the age. For those able and willing to travel, there were countless destinations from Jerusalem, Rome and Santiago de Compostela to the smaller local shrines associated with miracles and relics of the saints. Meanwhile, for those unable or not allowed to travel there were journeys of the mind, inspired by guidebooks that would tell the faithful how many steps they could take around their homes to replicate the walk to the main destinations in Rome and the Holy Land, passing paintings of the places on their route. The image above is of a badge of St Thomas of Canterbury, worn by pilgrims who had journeyed to his shrine. With Miri Rubin Professor of Medieval and Early Modern History at Queen Mary, University of London Kathryn Rudy Professor of Art History at the University of St Andrews And Anthony Bale Professor of Medieval Studies and Dean of the School of Arts at Birkbeck, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of the most famous museum objects in the world, shown in the image above in replica, and dating from around 196 BC. It is a damaged, dark granite block on which you can faintly see three scripts engraved: Greek at the bottom, Demotic in the middle and Hieroglyphs at the top. Napoleon’s soldiers found it in a Mamluk fort at Rosetta on the Egyptian coast, and soon realised the Greek words could be used to unlock the hieroglyphs. It was another 20 years before Champollion deciphered them, becoming the first to understand the hieroglyphs since they fell out of use 1500 years before and so opening up the written culture of ancient Egypt to the modern age. With Penelope Wilson Associate Professor of Egyptian Archaeology at Durham University Campbell Price Curator of Egypt and Sudan at the Manchester Museum And Richard Bruce Parkinson Professor of Egyptology and Fellow of The Queen’s College, University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of the outstanding French mathematicians and natural philosophers of the 18th Century, celebrated across Europe. Emilie du Châtelet, 1706-49, created a translation of Newton’s Principia from Latin into French that helped spread the light of mathematics on the emerging science, and her own book Institutions de Physique, with its lessons on physics, was welcomed as profound. She had the privileges of wealth and aristocracy, yet had to fight to be taken seriously as an intellectual in a world of ideas that was almost exclusively male. With Patricia Fara Emeritus Fellow of Clare College, Cambridge David Wootton Anniversary Professor of History at the University of York And Judith Zinsser Professor Emerita of History at Miami University of Ohio and biographer of Emilie du Châtelet. Producer: Simon Tillotson

Melvyn Bragg and guests discuss the Northumbrian man who, for 500 years, was the pre-eminent English saint, to be matched only by Thomas Becket after his martyrdom in 1170. Now at Durham, Cuthbert was buried first on Lindisfarne in 687AD, where monks shared vivid stories of his sanctifying miracles, his healing, and his power over nature, and his final tomb became a major site of pilgrimage. In his lifetime he was both hermit and kingmaker, bishop and travelling priest, and the many accounts we have of him, including two by Bede, tell us much of the values of those who venerated him so soon after his death. The image above is from a stained glass window in the south aisle of the nave in Durham Cathedral: 'St Cuthbert praying before his cell in the Farne Island' With Jane Hawkes Professor of Medieval Art History at the University of York Sarah Foot The Regius Professor of Ecclesiastical History at the University of Oxford and Canon of Christ Church Cathedral And John Hines Professor of Archaeology at Cardiff University Producer: Simon Tillotson

Melvyn Bragg and guests discuss the plague that broke out in Constantinople 541AD, in the reign of Emperor Justinian. According to the historian Procopius, writing in Byzantium at the time, this was a plague by which the whole human race came near to being destroyed, embracing the whole world, and blighting the lives of all mankind. The bacterium behind the Black Death has since been found on human remains from that time, and the symptoms described were the same, and evidence of this plague has since been traced around the Mediterranean and from Syria to Britain and Ireland. The question of how devastating it truly was, though, is yet to be resolved. With John Haldon Professor of Byzantine History and Hellenic Studies Emeritus at Princeton University Rebecca Flemming Senior Lecturer in Classics at the University of Cambridge And Greg Woolf Director of the Institute of Classical Studies, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss F Scott Fitzgerald’s finest novel, published in 1925, one of the great American novels of the twentieth century. It is told by Nick Carraway, neighbour and friend of the mysteriously wealthy Jay Gatsby. In the age of jazz and prohibition, Gatsby hosts lavish parties at his opulent home across the bay from Daisy Buchanan, in the hope she’ll attend one of them and they can be reunited. They were lovers as teenagers but she had given him up for a richer man who she soon married, and Gatsby is obsessed with winning her back. The image above is of Robert Redford as Gatsby in a scene from the film 'The Great Gatsby', 1974. With Sarah Churchwell Professor of American Literature and Public Understanding of the Humanities at the University of London Philip McGowan Professor of American Literature at Queen’s University, Belfast And William Blazek Associate Professor and Reader in American Literature at Liverpool Hope University Produced by Simon Tillotson and Julia Johnson

Melvyn Bragg and guests discuss solar eclipses, some of life’s most extraordinary moments, when day becomes night and the stars come out before day returns either all too soon or not soon enough, depending on what you understand to be happening. In ancient China, for example, there was a story that a dragon was eating the sun and it had to be scared away by banging pots and pans if the sun were to return. Total lunar eclipses are more frequent and last longer, with a blood moon coloured red like a sunrise or sunset. Both events have created the chance for scientists to learn something remarkable, from the speed of light, to the width of the Atlantic, to the roundness of Earth, to discovering helium and proving Einstein’s Theory of General Relativity. With Carolin Crawford Public Astronomer based at the Institute of Astronomy, University of Cambridge and a fellow of Emmanuel College Frank Close Emeritus Professor of Physics at the University of Oxford And Lucie Green Professor of Physics and a Royal Society University Research Fellow at Mullard Space Science Laboratory at University College London Producers: Simon Tillotson and Julia Johnson

Melvyn Bragg and guests discuss Chairman Mao and the revolt he led within his own party from 1966, setting communists against each other, to renew the revolution that he feared had become too bourgeois and to remove his enemies and rivals. Universities closed and the students formed Red Guard factions to attack the 'four olds' - old ideas, culture, habits and customs - and they also turned on each other, with mass violence on the streets and hundreds of thousands of deaths. Over a billion copies of Chairman Mao’s Little Red Book were printed to support his cult of personality, before Mao himself died in 1976 and the revolution came to an end. The image above is of Red Guards, holding The Little Red Book, cheering Mao during a meeting to celebrate the Great Proletarian Cultural Revolution at Tiananmen Square, Beijing, August 1966 With Rana Mitter Professor of the History and Politics of Modern China and Fellow of St Cross College, University of Oxford Sun Peidong Visiting Professor at the Center for International Studies at Sciences Po, Paris And Julia Lovell Professor in Modern Chinese History and Literature at Birkbeck, University of London Produced by Simon Tillotson and Julia Johnson

Melvyn Bragg and guests discuss John Wesley (1703 - 1791) and the movement he was to lead and inspire. As a student, he was mocked for approaching religion too methodically and this jibe gave a name to the movement: Methodism. Wesley took his ideas out across Britain wherever there was an appetite for Christian revival, preaching in the open, especially the new industrial areas. Others spread Methodism too, such as George Whitefield, and the sheer energy of the movement led to splits within it, but it soon became a major force. With Stephen Plant Dean and Runcie Fellow at Trinity Hall at the University of Cambridge Eryn White Reader in Early Modern History at Aberystwyth University And William Gibson Professor of Ecclesiastical History at Oxford Brookes University and Director of the Oxford Centre for Methodism and Church History Produced by Simon Tillotson and Julia Johnson

Melvyn Bragg and guests discuss the Portuguese poet Pessoa (1888-1935) who was largely unknown in his lifetime but who, in 1994, Harold Bloom included in his list of the 26 most significant western writers since the Middle Ages. Pessoa wrote in his own name but mainly in the names of characters he created, each with a distinctive voice and biography, which he called heteronyms rather than pseudonyms, notably Ricardo Reis, Alberto Caeiro, Álvaro de Campos and one who was closer to Pessoa's own identity, Bernardo Soares. Most of Pessoa's works were unpublished at his death, discovered in a trunk; as more and more was printed and translated, his fame and status grew. With Cláudia Pazos-Alonso Professor of Portuguese and Gender Studies and Senior Research Fellow at Wadham College, University of Oxford Juliet Perkins Visiting Senior Research Fellow in Portuguese Studies at King’s College London And Paulo de Medeiros Professor of English and Comparative Literary Studies at the University of Warwick Producer: Simon Tillotson

Melvyn Bragg and guests discuss the notorious events off Jamaica in 1781 and their background. The British slave ship Zong, having sailed across the Atlantic towards Jamaica, threw 132 enslaved Africans from its human cargo into the sea to drown. Even for a slave ship, the Zong was overcrowded; those murdered were worth more to the ship dead than alive. The crew said there was not enough drinking water to go round and they had no choice, which meant they could claim for the deaths on insurance. The main reason we know of this atrocity now is that the owners took their claim to court in London, and the insurers were at first told to pay up as if the dead slaves were any other lost goods, not people. Abolitionists in Britain were scandalised: if courts treated mass murder in the slave trade as just another business transaction and not a moral wrong, the souls of the nation would be damned. But nobody was ever prosecuted. The image above is of sailors throwing slaves overboard, from Torrey's 'American Slave Trade', 1822 With Vincent Brown Charles Warren Professor of American History and Professor of African and African American Studies at Harvard University Bronwen Everill Class of 1973 Lecturer in History and Fellow at Gonville & Caius College, University of Cambridge And Jake Subryan Richards Assistant Professor of History at the London School of Economics Studio production: Hannah Sander Producer: Simon Tillotson

Melvyn Bragg and guests discuss the great German artist Albrecht Dürer (1471-1528) who achieved fame throughout Europe for the power of his images. These range from his woodcut of a rhinoceros, to his watercolour of a young hare, to his drawing of praying hands and his stunning self-portraits such as that above (albeit here in a later monochrome reproduction) with his distinctive A D monogram. He was expected to follow his father and become a goldsmith, but found his own way to be a great artist, taking public commissions that built his reputation but did not pay, while creating a market for his prints, and he captured the timeless and the new in a world of great change. With Susan Foister Deputy Director and Curator of German Paintings at the National Gallery Giulia Bartrum Freelance art historian and Former Curator of German Prints and Drawings at the British Museum And Ulinka Rublack Professor of Early Modern European History and Fellow of St John’s College, University of Cambridge Studio production: John Goudie

The philosopher Mary Astell (1666 – 1731) has been described as “the first English feminist”. Born in Newcastle in relatively poor circumstances in the aftermath of the upheaval of the English Civil War and the restoration of the monarchy, she moved to London as a young woman and became part of an extraordinary circle of intellectual and aristocratic women. In her pioneering publications, she argued that women’s education should be expanded, that men and women’s minds were the same and that no woman should be forced to marry against her will. Perhaps her most famous quotation is: “If all Men are born Free, why are all Women born Slaves?” Today, she is one of just a handful of female philosophers to be featured in the multi-volume Cambridge History of Political Thought. The image above is from Astell's "Reflections upon Marriage", 3rd edition, 1706, held by the British Library (Shelfmark 8415.bb.27) With: Hannah Dawson Senior Lecturer in the History of Ideas at King’s College London Mark Goldie Professor Emeritus of Intellectual History at the University of Cambridge Teresa Bejan Associate Professor of Political Theory at Oriel College, University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss William Langland's poem, written around 1370, about a man called Will who fell asleep on the Malvern Hills and dreamed of Piers the Plowman. This was a time between the Black Death and The Peasants’ Revolt, when Christians wanted to save their souls but doubted how best to do it - and had to live with that uncertainty. Some call this the greatest medieval poem in English, one offering questions not answers, and it can be as unsettling now as it was then. With Laura Ashe Professor of English Literature at Worcester College, University of Oxford Lawrence Warner Professor of Medieval English at King’s College London And Alastair Bennett Lecturer in Medieval Literature at Royal Holloway, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss Maria Theresa (1717-1780) who inherited the Austrian throne in 1740 at the age of 23. Her neighbours circled like wolves and, within two months, Frederick the Great had seized one of her most prized lands, Silesia, exploiting her vulnerability. Yet over the next forty years through political reforms, alliances and marriages, she built Austria up into a formidable power, and she would do whatever it took to save the souls of her Catholic subjects, with a rigidity and intolerance that Joseph II, her son and heir, could not wait to challenge. With Catriona Seth Marshal Foch Professor of French Literature at the University of Oxford Martyn Rady Professor of Central European History at University College London And Thomas Biskup Lecturer in Early Modern History at the University of Hull Producer: Simon Tillotson

Melvyn Bragg and guests discuss Alan Turing (1912-1954) whose 1936 paper On Computable Numbers effectively founded computer science. Immediately recognised by his peers, his wider reputation has grown as our reliance on computers has grown. He was a leading figure at Bletchley Park in the Second World War, using his ideas for cracking enemy codes, work said to have shortened the war by two years and saved millions of lives. That vital work was still secret when Turing was convicted in 1952 for having a sexual relationship with another man for which he was given oestrogen for a year, or chemically castrated. Turing was to kill himself two years later. The immensity of his contribution to computing was recognised in the 1960s by the creation of the Turing Award, known as the Nobel of computer science, and he is to be the new face on the £50 note. With Leslie Ann Goldberg Professor of Computer Science and Fellow of St Edmund Hall, University of Oxford Simon Schaffer Professor of the History of Science at the University of Cambridge and Fellow of Darwin College And Andrew Hodges Biographer of Turing and Emeritus Fellow of Wadham College, Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the idea that God created the universe and then left it for humans to understand by reason not revelation. Edward Herbert, 1583-1648 (pictured above) held that there were five religious truths: belief in a Supreme Being, the need to worship him, the pursuit of a virtuous life as the best form of worship, repentance, and reward or punishment after death. Others developed these ideas in different ways, yet their opponents in England's established Church collected them under the label of Deists, called Herbert the Father of Deism and attacked them as a movement, and Deist books were burned. Over time, reason and revelation found a new balance in the Church in England, while Voltaire and Thomas Paine explored the ideas further, leading to their re-emergence in the French and American Revolutions. With Richard Serjeantson Fellow and Lecturer in History at Trinity College, Cambridge Katie East Lecturer in History at Newcastle University And Thomas Ahnert Professor of Intellectual History at the University of Edinburgh Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of Shakespeare’s greatest tragedies. When three witches prophesy that Macbeth will be king one day, he is not prepared to wait and almost the next day he murders King Duncan as he sleeps, a guest at Macbeth’s castle. From there we explore their brutal world where few boundaries are distinct – between safe and unsafe, friend and foe, real and unreal, man and beast – until Macbeth too is slaughtered. The image above shows Nicol Williamson as Macbeth in a 1983 BBC TV adaptation. With: Emma Smith Professor of Shakespeare Studies at Hertford College, University of Oxford Kiernan Ryan Emeritus Professor of English Literature at Royal Holloway, University of London And David Schalkwyk, Professor of Shakespeare Studies and Director of Global Shakespeare at Queen Mary, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss ideas about the Stone Age people who created the extraordinary images found in caves around the world, from hand outlines to abstract symbols to the multicoloured paintings of prey animals at Chauvet and, as shown above, at Lascaux. In the 19th Century, it was assumed that only humans could have made these, as Neanderthals would have lacked the skills or imagination, but new tests suggest otherwise. How were the images created, were they meant to be for private viewing or public spaces, and what might their purposes have been? And, if Neanderthals were capable of creative work, in what ways were they different from humans? What might it have been like to experience the paintings, so far from natural light? With Alistair Pike Professor of Archaeological Sciences at the University of Southampton Chantal Conneller Senior Lecturer in Early Pre-History at Newcastle University And Paul Pettitt Professor of Palaeolithic Archaeology at Durham University Producer: Simon Tillotson

Melvyn Bragg and guests discuss Pericles (495-429BC), the statesman who dominated the politics of Athens for thirty years, the so-called Age of Pericles, when the city’s cultural life flowered, its democracy strengthened as its empire grew, and the Acropolis was adorned with the Parthenon. In 431 BC he gave a funeral oration for those Athenians who had already died in the new war with Sparta which has been celebrated as one of the greatest speeches of all time, yet within two years he was dead from a plague made worse by Athenians crowding into their city to avoid attacks. Thucydides, the historian, knew him and was in awe of him, yet few shared that view until the nineteenth century, when they found much in Pericles to praise, an example for the Victorian age. With Edith Hall Professor of Classics at King's College London. Paul Cartledge AG Leventis Senior Research Fellow at Clare College, University of Cambridge And Peter Liddel Senior Lecturer in Ancient History at the University of Manchester Producer: Simon Tillotson

In a programme first broadcast in May 2019, Melvyn Bragg and guests discuss Mary Shelley's (1797-1851) Gothic story of a Swiss natural philosopher, Victor Frankenstein, and the creature he makes from parts of cadavers and which he then abandons, horrified by his appearance, and never names. Rejected by all humans who see him, the monster takes his revenge on Frankenstein, killing those dear to him. Shelley started writing Frankenstein when she was 18, prompted by a competition she had with Byron and her husband Percy Shelley to tell a ghost story while they were rained in in the summer of 1816 at the Villa Diodati by Lake Geneva. The image of Mary Shelley, above, was first exhibited in 1840. With Karen O'Brien Professor of English Literature at the University of Oxford Michael Rossington Professor of Romantic Literature at Newcastle University And Jane Thomas Professor of Victorian and Early 20th Century Literature at the University of Hull Producer: Simon Tillotson This programme is a repeat

Melvyn Bragg and guests discuss the bonds that Scottish Presbyterians made between themselves and their monarchs in the 16th and 17th Centuries, to maintain their form of worship. These covenants bound James VI of Scotland to support Presbyterians yet when he became James I he was also expected to support episcopacy. That tension came to a head under Charles I who found himself on the losing side of a war with the Covenanters, who later supported Parliament before backing the future Charles II after he had pledged to support them. Once in power, Charles II failed to deliver the religious settlement the Covenanters wanted, and set about repressing them violently. Those who refused to renounce the covenants were persecuted in what became known as The Killing Times, as reflected in the image above. With Roger Mason Professor of Scottish History at the University of St Andrews Laura Stewart Professor of Early Modern British History at the University of York And Scott Spurlock Professor of Scottish and Early Modern Christianities at the University of Glasgow Producer: Simon Tillotson

Melvyn Bragg and guests discuss the theoretical physicist Dirac (1902-1984), whose achievements far exceed his general fame. To his peers, he was ranked with Einstein and, when he moved to America in his retirement, he was welcomed as if he were Shakespeare. Born in Bristol, he trained as an engineer before developing theories in his twenties that changed the understanding of quantum mechanics, bringing him a Nobel Prize in 1933 which he shared with Erwin Schrödinger. He continued to make deep contributions, bringing abstract maths to physics, beyond predicting anti-particles as he did in his Dirac Equation. With Graham Farmelo Biographer of Dirac and Fellow at Churchill College, Cambridge Valerie Gibson Professor of High Energy Physics at the University of Cambridge and Fellow of Trinity College And David Berman Professor of Theoretical Physics at Queen Mary University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the origins of horses, from their dog sized ancestors to their proliferation in the New World until hunted to extinction, their domestication in Asia and their development since. The genetics of the modern horse are the most studied of any animal, after humans, yet it is still uncertain why they only have one toe on each foot when their wider family had more, or whether speed or stamina has been more important in their evolution. What is clear, though, is that when humans first chose to ride horses, as well as eat them, the future of both species changed immeasurably. With Alan Outram Professor of Archaeological Science at the University of Exeter Christine Janis Honorary Professor in Palaeobiology at the University of Bristol and Professor Emerita in Ecology and Evolutionary Biology at Brown University And John Hutchinson Professor in Evolutionary Biomechanics at the Royal Veterinary College Producer: Simon Tillotson

Melvyn Bragg and guests discuss the debate in Valladolid, Spain in 1550, over Spanish rights to enslave the native peoples in the newly conquered lands. Bartolomé de Las Casas (pictured above), the Bishop of Chiapas, Mexico, was trying to end the encomienda system in which those who now owned the land could also take the people in forced labour. Juan Gines Sepulveda, a philosopher, argued for the colonists' property rights over people, asserting that some native Americans were 'natural slaves' as defined by Aristotle. Valladolid became seen as the first open attempt by European colonists to discuss the ethics of slavery, and Las Casas became known as 'Saviour of the Indians' and an advocate for human rights, although for some time he argued that African slaves be imported to do the work in place of the native people, before repenting. With Caroline Dodds Pennock Senior Lecturer in International History at the University of Sheffield John Edwards Faculty Fellow in Spanish at the University of Oxford And Julia McClure Lecturer in Late Medieval and Early Modern Global History at the University of Glasgow Producer: Simon Tillotson

Melvyn Bragg and guests discuss the great Roman military disaster of 9 AD when Germanic tribes under Arminius ambushed and destroyed three legions under Varus. According to Suetonius, emperor Augustus hit his head against the wall when he heard the news, calling on Varus to give him back his legions. The defeat ended Roman expansion east of the Rhine. Victory changed the development of the Germanic peoples, both in the centuries that followed and in the nineteenth century when Arminius, by then known as Herman, became a rallying point for German nationalism. With Peter Heather Professor of Medieval History at King’s College London Ellen O'Gorman Senior Lecturer in Classics at the University of Bristol And Matthew Nicholls Fellow and Senior Tutor at St John’s College, Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the works and life of one of the most popular writers in Europe in C19th, Amantine Lucile Aurore Dupin (1804-1876) who wrote under the name George Sand. When she wrote her first novel under that name, she referred to herself as a man. This was in Indiana (1832), which had the main character breaking away from her unhappy marriage. It made an immediate impact as it overturned the social conventions of the time and it drew on her own early marriage to an older man, Casimir Dudevant. Once Sand's identity was widely known, her works became extremely popular in French and in translation, particularly her rural novels, outselling Hugo and Balzac in Britain, perhaps buoyed by an interest in her personal life, as well as by her ideas on the rights and education of women and strength of her writing. With Belinda Jack Fellow and Tutor in French at Christ Church, University of Oxford Angela Ryan Senior Lecturer in French at University College Cork And Nigel Harkness Pro-Vice-Chancellor for Humanities and Social Sciences and Professor of French at Newcastle University Producer: Simon Tillotson

Melvyn Bragg and guests discuss Alcuin of York, c735-804AD, who promoted education as a goal in itself, and had a fundamental role in the renaissance at Charlemagne's court. He wrote poetry and many letters, hundreds of which survive and provide insight into his life and times. He was born in or near York and spent most of his life in Northumbria before accepting an invitation to Charlemagne's court in Aachen. To this he brought Anglo-Saxon humanism, encouraging a broad liberal education for itself and the better to understand Christian doctrine. He left to be abbot at Marmoutier, Tours, where the monks were developing the Carolingian script that influenced the Roman typeface. The image above is Alcuin’s portrait, found in a copy of the Bible made at his monastery in Tours during the rule of his successor Abbot Adalhard (834–843). Painted in red on gold leaf, it shows Alcuin with a tonsure and a halo, signifying respect for his memory at the monastery where he had died in 804. His name and rank are spelled out alongside: Alcvinvs abba, ‘Alcuin the abbot’. It is held at the Staatsbibliothek Bamberg -Kaiser-Heinrich-Bibliothek - Msc.Bibl.1,fol.5v (photo by Gerald Raab). With Joanna Story Professor of Early Medieval History at the University of Leicester Andy Orchard Rawlinson and Bosworth Professor of Anglo-Saxon at the University of Oxford and a fellow of Pembroke College And Mary Garrison Lecturer in History at the Centre for Medieval Studies at the University of York Producer: Simon Tillotson

Melvyn Bragg and guests discuss the flow of particles from the outer region of the Sun which we observe in the Northern and Southern Lights, interacting with Earth's magnetosphere, and in comet tails that stream away from the Sun regardless of their own direction. One way of defining the boundary of the solar system is where the pressure from the solar wind is balanced by that from the region between the stars, the interstellar medium. Its existence was suggested from the C19th and Eugene Parker developed the theory of it in the 1950s and it has been examined and tested by a series of probes in C20th up to today, with more planned. With Andrew Coates Professor of Physics and Deputy Director in charge of the Solar System at the Mullard Space Science Laboratory, University College London Helen Mason OBE Reader in Solar Physics at the Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Fellow at St Edmund's College And Tim Horbury Professor of Physics at Imperial College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the siege of Paris during the Franco-Prussian war and the social unrest that followed, as the French capital was cut off from the rest of the country and food was scarce. When the French government surrendered Paris to the Prussians, power gravitated to the National Guard in the city and to radical socialists, and a Commune established in March 1871 with the red flag replacing the trilcoleur. The French government sent in the army and, after bloody fighting, the Communards were defeated by the end of May 1871. The image above is from an engraving of the fire in the Tuileries Palace, May 23, 1871 With Karine Varley Lecturer in French and European History at the University of Strathclyde Robert Gildea Professor of Modern History at the University of Oxford And Julia Nicholls Lecturer in French and European Studies at King’s College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss Catullus (c84-c54 BC) who wrote some of the most sublime poetry in the late Roman Republic, and some of the most obscene. He found a new way to write about love, in poems to the mysterious Lesbia, married and elusive, and he influenced Virgil and Ovid and others, yet his explicit poems were to blight his reputation for a thousand years. Once the one surviving manuscript was discovered in the Middle Ages, though, anecdotally as a plug in a wine butt, he inspired Petrarch and the Elizabethan poets, as he continues to inspire many today. The image above is of Lesbia and her Sparrow, 1860, artist unknown With Gail Trimble Brown Fellow and Tutor in Classics at Trinity College at the University of Oxford Simon Smith Reader in Creative Writing at the University of Kent, poet and translator of Catullus and Maria Wyke Professor of Latin at University College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the discovery in 1922 of Tutankhamun's 3000 year old tomb and its impact on the understanding of ancient Egypt, both academic and popular. The riches, such as the death mask above, were spectacular and made the reputation of Howard Carter who led the excavation. And if the astonishing contents of the tomb were not enough, the drama of the find and the control of how it was reported led to a craze for 'King Tut' that has rarely subsided and has enthused and sometimes confused people around the world, seeking to understand the reality of Tutankhamun's life and times. With Elizabeth Frood Associate Professor of Egyptology, Director of the Griffith Institute and Fellow of St Cross at the University of Oxford Christina Riggs Professor of the History of Visual Culture at Durham University and a Fellow of All Souls College, Oxford And John Taylor Curator at the Department of Egypt and Sudan at the British Museum Producer: Simon Tillotson

Melvyn Bragg and guests discuss the life and poetry of WH Auden (1907-1973) up to his departure from Europe for the USA in 1939. As well as his personal life, he addressed suffering and confusion, and the moral issues that affected the wider public in the 1930s and tried to unpick what was going wrong in society and to understand those times. He witnessed the rise of totalitarianism in the austerity of that decade, travelling through Germany to Berlin, seeing Spain in the Civil War and China during its wars with Japan, often collaborating with Christopher Isherwood. In his lifetime his work attracted high praise and intense criticism, and has found new audiences in the fifty years since his death, sometimes taking literally what he meant ironically. With Mark Ford Poet and Professor of English at University College London Janet Montefiore Professor Emerita of 20th Century English Literature at the University of Kent And Jeremy Noel-Tod Senior Lecturer in Literature and Creative Writing at the University of East Anglia Producer: Simon Tillotson

Melvyn Bragg and guests discuss the history and social impact of coffee. From its origins in Ethiopia, coffea arabica spread through the Ottoman Empire before reaching Western Europe where, in the 17th century, coffee houses were becoming established. There, caffeinated customers stayed awake for longer and were more animated, and this helped to spread ideas and influence culture. Coffee became a colonial product, grown by slaves or indentured labour, with coffea robusta replacing arabica where disease had struck, and was traded extensively by the Dutch and French empires; by the 19th century, Brazil had developed into a major coffee producer, meeting demand in the USA that had grown on the waggon trails. With Judith Hawley Professor of 18th Century Literature at Royal Holloway, University of London Markman Ellis Professor of 18th Century Studies at Queen Mary University of London And Jonathan Morris Professor in Modern History at the University of Hertfordshire Producer: Simon Tillotson

Melvyn Bragg and guests discuss T.E. Lawrence (1888 – 1935), better known as Lawrence of Arabia, a topic drawn from over 1200 suggestions for our Listener Week 2019. Although Lawrence started as an archaeologist in the Middle East, when World War I broke out he joined the British army and became an intelligence officer. His contact with a prominent Arab leader, Sharif Hussein, made him sympathetic to Hussein’s cause and during the Arab Revolt of 1916 he not only served the British but also the interests of Hussein. After the war he was dismayed by the peace settlement and felt that the British had broken an assurance that Sharif Hussein would lead a new Arab kingdom. Lawrence was made famous by the work of Lowell Thomas, whose film of Lawrence drew huge audiences in 1919, which led to his own book Seven Pillars of Wisdom and David Lean’s 1962 film with Peter O'Toole. In previous Listener Weeks, we've discussed Kafka's The Trial, The Voyages of Captain Cook, Garibaldi and the Risorgimento, Moby Dick and The Thirty Years War. With Hussein Omar Lecturer in Modern Global History at University College Dublin Catriona Pennell Associate Professor of Modern History and Memory Studies at the University of Exeter Neil Faulkner Director of Military History Live and Editor of the magazine Military History Matters Producer: Simon Tillotson

Melvyn Bragg and guests discuss the life and ideas of Li Shizhen (1518-1593) whose compendium of natural medicines is celebrated in China as the most complete survey of natural remedies of its time. He trained as a doctor and worked at the Ming court before spending almost 30 years travelling in China, inspecting local plants and animals for their properties, trying them out on himself and then describing his findings in his Compendium of Materia Medica or Bencao Gangmu, in 53 volumes. He's been called the uncrowned king of Chinese naturalists, and became a scientific hero in the 20th century after the revolution. With Craig Clunas Professor Emeritus in the History of Art at the University of Oxford Anne Gerritsen Professor in History at the University of Warwick And Roel Sterckx Joseph Needham Professor of Chinese History at the University of Cambridge Producer: Simon Tillotson

Melvyn Bragg and guests discuss the most powerful woman in the Crusader states in the century after the First Crusade. Melisende (1105-61) was born and raised after the mainly Frankish crusaders had taken Jerusalem from the Fatimids, and her father was King of Jerusalem. She was married to Fulk from Anjou, on the understanding they would rule together, and for 30 years she vied with him and then their son as they struggled to consolidate their Frankish state in the Holy Land. The image above is of the coronation of Fulk with Melisende, from Livre d'Eracles, Guillaume de Tyr (1130?-1186) Source: Bibliothèque nationale de France With Natasha Hodgson Senior Lecturer in Medieval History and Director of the Centre for the Study of Religion and Conflict at Nottingham Trent University Katherine Lewis Senior Lecturer in History at the University of Huddersfield and Danielle Park Visiting Lecturer at Royal Holloway, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the novel written by Dostoevsky and published in 1866, in which Raskolnikov, a struggling student, justifies his murder of two women, as his future is more valuable than their lives. He thinks himself superior, above the moral laws that apply to others. The police have little evidence against him but trust him to confess, once he cannot bear the mental torture of his crime - a fate he cannot avoid, any more than he can escape from life in St Petersburg and his personal failures. The image above is from a portrait of Dostoevsky by Vasili Perov, 1872. With Sarah Hudspith Associate Professor in Russian at the University of Leeds Oliver Ready Lecturer in Russian at the University of Oxford, Research Fellow at St Antony’s College and a translator of this novel And Sarah Young Associate Professor in Russian at the School of Slavonic and East European Studies, University College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the 1691 peace treaty that ended the Williamite War in Ireland, between supporters of the deposed King James II and the forces of William III and his allies. It followed the battles at Aughrim and the Boyne and sieges at Limerick, and led to the disbanding of the Jacobite army in Ireland, with troops free to follow James to France for his Irish Brigade. The Catholic landed gentry were guaranteed rights on condition of swearing loyalty to William and Mary yet, while some Protestants thought the terms too lenient, it was said the victors broke those terms before the ink was dry. The image above is from British Battles on Land and Sea, Vol. I, by James Grant, 1880, and is meant to show Irish troops leaving Limerick as part of The Flight of the Wild Geese - a term used for soldiers joining continental European armies from C16th-C18th. With Jane Ohlmeyer Chair of the Irish Research Council and Erasmus Smith’s Professor of Modern History at Trinity College Dublin Dr Clare Jackson Senior Tutor, Trinity Hall, and Faculty of History, University of Cambridge and Thomas O'Connor Professor of History at Maynooth University Producer: Simon Tillotson

Melvyn Bragg and guests discuss what happens when parents from different species have offspring, despite their genetic differences. In some cases, such as the zebra/donkey hybrid in the image above, the offspring are usually infertile but in others the genetic change can lead to new species with evolutionary advantages. Hybrids can occur naturally, yet most arise from human manipulation and Darwin's study of plant and animal domestication informed his ideas on natural selection. With Sandra Knapp Tropical Botanist at the Natural History Museum Nicola Nadeau Lecturer in Evolutionary Biology at the University of Sheffield And Steve Jones Senior Research Fellow in Genetics at University College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the work of the man who, in his lifetime, was called The Caledonian Bard and whose fame and influence was to spread around the world. Burns (1759-1796) was born in Ayrshire and his work as a tenant farmer earned him the label The Ploughman Poet, yet it was the quality of his verse that helped his reputation endure and grow. His work inspired other Romantic poets and his personal story and ideas combined with that, giving his poems a broad strength and appeal - sung by revolutionaries and on Mao's Long March, as well as on New Year's Eve and at Burns Suppers. With Robert Crawford Professor of Modern Scottish Literature and Bishop Wardlaw Professor of Poetry at the University of St Andrews Fiona Stafford Professor of English at the University of Oxford and Murray Pittock Bradley Professor of English Literature and Pro Vice Principal at the University of Glasgow Producer: Simon Tillotson

Melvyn Bragg and guests discuss the ideas explored in HG Wells' novella, published in 1895, in which the Time Traveller moves forward to 802,701 AD. There he finds humanity has evolved into the Eloi and Morlocks, where the Eloi are small but leisured fruitarians and the Morlocks live below ground, carry out the work and have a different diet. Escaping the Morlocks, he travels millions of years into the future, where the environment no longer supports humanity. The image above is from a painting by Anton Brzezinski of a scene from The Time Machine, with the Time Traveller meeting the Eloi With Simon Schaffer Professor of History of Science at Cambridge University Amanda Rees Historian of science at the University of York And Simon James Professor in the Department of English Studies at Durham University Producer: Simon Tillotson

Melvyn Bragg and guests discuss the ideas of Jean-Jacques Rousseau (1712-1778) on the education of children, as set out in his novel or treatise Emile, published in 1762. He held that children are born with natural goodness, which he sought to protect as they developed, allowing each to form their own conclusions from experience, avoiding the domineering influence of others. In particular, he was keen to stop infants forming the view that human relations were based on domination and subordination. Rousseau viewed Emile as his most imporant work, and it became very influential. It was also banned and burned, and Rousseau was attacked for not following these principles with his own children, who he abandoned, and for proposing a subordinate role for women in this scheme. The image above is of Emile playing with a mask on his mother's lap, from a Milanese edition published in 1805. With Richard Whatmore Professor of Modern History at the University of St Andrews and Co-Director of the St Andrews Institute of Intellectual History Caroline Warman Professor of French Literature and Thought at Jesus College, Oxford and Denis McManus Professor of Philosophy at the University of Southampton Producer: Simon Tillotson

Melvyn Bragg and guests discuss the work and ideas of Dorothy Crowfoot Hodgkin (1910-1994), awarded the Nobel Prize in Chemistry in 1964 for revealing the structures of vitamin B12 and penicillin and who later determined the structure of insulin. She was one of the pioneers of X-ray crystallography and described by a colleague as 'a crystallographers' crystallographer'. She remains the only British woman to have won a Nobel in science, yet rejected the idea that she was a role model for other women, or that her career was held back because she was a woman. She was also the first woman since Florence Nightingale to receive the Order of Merit, and was given the Lenin Peace Prize in recognition of her efforts to bring together scientists from the East and West in pursuit of nuclear disarmament. With Georgina Ferry Science writer and biographer of Dorothy Hodgkin Judith Howard Professor of Chemistry at Durham University and Patricia Fara Fellow of Clare College, Cambridge Producer: Simon Tillotson

Melvyn Bragg and guests discuss the ideas developed by the Anglican priest John Nelson Darby (1800-1882), drawn from his reading of scripture, in which Jesus would suddenly take His believers up into the air, and those left behind would suffer on Earth until He returned with His church to rule for a thousand years before Final Judgement. Some believers would look for signs that civilization was declining, such as wars and natural disasters, or for new Roman Empires that would harbour the Antichrist, and from these predict the time of the Rapture. Darby helped establish the Plymouth Brethren, and later his ideas were picked up in the Scofield Reference Bible (1909) and soon became influential, particularly in the USA. With Elizabeth Phillips Research Fellow at the Margaret Beaufort Institute at the University of Cambridge and Honorary Fellow in the Department of Theology and Religion at Durham University Crawford Gribben Professor of Early Modern British History at Queen’s University Belfast and Nicholas Guyatt Reader in North American History at the University of Cambridge Producer: Simon Tillotson

Melvyn Bragg and guests discuss how, in September 1812, Napoleon captured Moscow and waited a month for the Russians to meet him, to surrender and why, to his dismay, no-one came. Soon his triumph was revealed as a great defeat; winter was coming, supplies were low; he ordered his Grande Armée of six hundred thousand to retreat and, by the time he crossed back over the border, desertion, disease, capture, Cossacks and cold had reduced that to twenty thousand. Napoleon had shown his weakness; his Prussian allies changed sides and, within eighteen months they, the Russians and Austrians had captured Paris and the Emperor was exiled to Elba. With Janet Hartley Professor Emeritus of International History, LSE Michael Rowe Reader in European History, King’s College London And Michael Rapport Reader in Modern European History, University of Glasgow Producer: Simon Tillotson

Melvyn Bragg and guests discuss the Spanish poet and playwright Federico Garcia Lorca (1898-1936), author of Blood Wedding, Yerma and The House of Bernarda Alba, who mixed the traditions of Andalusia with the avant-garde. He found his first major success with his Gypsy Ballads, although Dali, once his close friend, mocked him for these, accusing Lorca of being too conservative. He preferred performing his poems to publishing them, and his plays marked a revival in Spanish theatre. He was captured and killed by Nationalist forces at the start of the Civil War, his body never recovered, and it's been suggested this was punishment for his politics and for being openly gay. He has since been seen as the most important Spanish playwright and poet of the last century. With Maria Delgado Professor of Creative Arts at the Royal Central School of Speech and Drama, University of London Federico Bonaddio Reader in Modern Spanish at King’s College London And Sarah Wright Professor of Hispanic Studies and Screen Arts at Royal Holloway, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the people, plants and animals once living on land now under the North Sea, now called Doggerland after Dogger Bank, inhabited up to c7000BC or roughly 3000 years before the beginnings of Stonehenge. There are traces of this landscape at low tide, such as the tree stumps at Redcar (above); yet more is being learned from diving and seismic surveys which are building a picture of an ideal environment for humans to hunt and gather, with rivers and wooded hills. Rising seas submerged this land as glaciers melted, and the people and animals who lived there moved to higher ground, with the coasts of modern-day Britain on one side and Denmark, Germany, The Netherlands, Belgium and France on the other. With Vince Gaffney Anniversary Professor of Landscape Archaeology at the University of Bradford Carol Cotterill Marine Geoscientist at the British Geological Survey And Rachel Bynoe Lecturer in Archaeology at the University of Southampton Producer: Simon Tillotson

Melvyn Bragg and guests discuss why Athenians decided to send a fast ship to Lesbos in 427BC, rowing through the night to catch one they sent the day before. That earlier ship had instructions to kill all adult men in Mytilene, after their unsuccessul revolt against Athens, as a warning to others. The later ship had orders to save them, as news of their killing would make others fight to the death rather than surrender. Thucydides retells this in his History of the Peloponnesian War as an example of Athenian democracy in action, emphasising the right of Athenians to change their minds in their own interests, even when a demagogue argued they were bound by their first decision. With Angela Hobbs Professor of the Public Understanding of Philosophy at the University of Sheffield Lisa Irene Hau Senior Lecturer in Classics at the University of Glasgow And Paul Cartledge Emeritus AG Leventis Professor of Greek Culture, University of Cambridge and Senior Research Fellow of Clare College Producer: Simon Tillotson

Melvyn Bragg and guests discuss how the people of Cusco, in modern Peru, established an empire along the Andes down to the Pacific under their supreme leader Pachacuti. Before him, their control grew slowly from C13th and was at its peak after him when Pizarro arrived with his Conquistadors and captured their empire for Spain in 1533. The image, above, is of Machu Picchu which was built for emperor Pachacuti as an estate in C15th. With Frank Meddens Visiting Scholar at the University of Reading Helen Cowie Senior Lecturer in History at the University of York And Bill Sillar Senior Lecturer at the Institute of Archaeology at University College London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the range, depth and style of Browne (1605-82) , a medical doctor whose curious mind drew him to explore and confess his own religious views, challenge myths and errors in science and consider how humans respond to the transience of life. His Religio Medici became famous throughout Europe and his openness about his religion, in that work, was noted as rare when others either kept quiet or professed orthodox views. His Pseudodoxia Epidemica challenged popular ideas, whether about the existence of mermaids or if Adam had a navel, and his Hydriotaphia or Urn Burial was a meditation on what matters to humans when handling the dead. In 1923, Virginia Woolf wrote, "Few people love the writings of Sir Thomas Browne, but those that do are the salt of the earth." He also contributed more words to the English language than almost anyone, such as electricity, indigenous, medical, ferocious, carnivorous ambidextrous and migrant. With Claire Preston Professor of Renaissance Literature at Queen Mary University of London Jessica Wolfe Professor of English and Comparative Literature at the University of North Carolina at Chapel Hill And Kevin Killeen Professor of English at the University of York Producer: Simon Tillotson

Melvyn Bragg and guests discuss the impact of Grant's presidency on Americans in the years after the Civil War in which he, with Lincoln, had led the Union Army to victory. His predecessor, Andrew Johnson, was prepared to let the Southern States decide for themselves which rights to allow freed slaves; Grant supported equal rights, and he used troops and Enforcement Acts to defeat the Ku klux Klan which was violently suppressing African Americans. In later years Grant was remembered mainly for the corruption scandals under his terms of office, and for his failure to support or protect Native Americans, but in more recent decades his support for reconstruction has prompted a reassessement. With Erik Mathisen Lecturer in US History at the University of Kent Susan-Mary Grant Professor of American History at Newcastle University and Robert Cook Professor of American History at the University of Sussex Producer: Simon Tillotson

Melvyn Bragg and guests discuss how scientists sought to understand the properties of gases and the relationship between pressure and volume, and what that search unlocked. Newton theorised that there were static particles in gases that pushed against each other all the harder when volume decreased, hence the increase in pressure. Those who argued that molecules moved, and hit each other, were discredited until James Maxwell and Ludwig Boltzmann used statistics to support this kinetic theory. Ideas about atoms developed in tandem with this, and it came as a surprise to scientists in C20th that the molecules underpinning the theory actually existed and were not simply thought experiments. The image above is of Ludwig Boltzmann from a lithograph by Rudolf Fenzl, 1898 With Steven Bramwell Professor of Physics at University College London Isobel Falconer Reader in History of Mathematics at the University of St Andrews and Ted Forgan Emeritus Professor of Physics at the University of Birmingham Producer: Simon Tillotson

Melvyn Bragg and guests discuss the French philosopher Henri Bergson (1859-1941) and his ideas about human experience of time passing and how that differs from a scientific measurement of time, set out in his thesis on 'Time and Free Will' in 1889. He became famous in France and abroad for decades, rivalled only by Einstein and, in the years after the Dreyfus Affair, was the first ever Jewish member of the Académie Française. It's thought his work influenced Proust and Woolf, and the Cubists. He died in 1941 from a cold which, reputedly, he caught while queuing to register as a Jew, refusing the Vichy government's offer of exemption. With Keith Ansell-Pearson Professor of Philosophy at the University of Warwick Emily Thomas Assistant Professor in Philosophy at Durham University And Mark Sinclair Reader in Philosophy at the University of Roehampton Producer: Simon Tillotson

Melvyn Bragg and guests discuss the most destructive riots in London's history, which reached their peak on 7th June 1780 as troops fired on the crowd outside the Bank of England. The leader was Lord George Gordon, head of the Protestant Association, who objected to the relaxing of laws against Catholics. At first the protest outside Parliament was peaceful but, when Gordon's petition failed to persuade the Commons, rioting continued for days until the military started to shoot suspects in the street. It came as Britain was losing the war to hold on to colonies in North America. The image above shows a crowd setting fire to Newgate Prison and freeing prisoners by the authority of 'His Majesty, King Mob.' With Ian Haywood Professor of English at the University of Roehampton Catriona Kennedy Senior Lecturer in Modern British and Irish History and Director of the Centre for Eighteenth Century Studies at the University of York and Mark Knights Professor of History at the University of Warwick Producer: Simon Tillotson

Melvyn Bragg and guests discuss the life of Nero (37-68 AD) who became Emperor at the age of 16. At first he was largely praised for his generosity yet became known for his debauched lifestyle, with allegations he started the Fire of Rome, watching the flames as he played the lyre. Christians saw him as their persecutor, an anti-Christ, and the number of the Beast in the Book of Revelation was thought to indicate Nero. He had confidence in his own artistry, took up acting (which then had a very low status) and, as revolts in the empire grew, killed himself after the Senate condemned him to die as a slave, on a cross. With Maria Wyke Professor of Latin at University College London Matthew Nicholls Fellow and Senior Tutor at St John’s College, University of Oxford And Shushma Malik Lecturer in Classics at the University of Roehampton Producer: Simon Tillotson

Melvyn Bragg and guests discuss one of Shakespeare's most popular works, written c1595 in the last years of Elizabeth I. It is a comedy of love and desire and their many complications as well as their simplicity, and a reflection on society's expectations and limits. It is also a quiet critique of Elizabeth and her vulnerability and on the politics of the time, and an exploration of the power of imagination. With Helen Hackett Professor of English Literature and Leverhulme Research Fellow at University College London Tom Healy Professor of Renaissance Studies at the University of Sussex and Alison Findlay Professor of Renaissance Drama at Lancaster University and Chair of the British Shakespeare Association Producer: Simon Tillotson

Melvyn Bragg and guests discuss theories about the origins of teeth in vertebrates, and what we can learn from sharks in particular and their ancestors. Great white sharks can produce up to 100,000 teeth in their lifetimes. For humans, it is closer to a mere 50 and most of those have to last from childhood. Looking back half a billion years, though, the ancestors of sharks and humans had no teeth in their mouths at all, nor jaws. They were armoured fish, sucking in their food. The theory is that either their tooth-like scales began to appear in mouths as teeth, or some of their taste buds became harder. If we knew more about that, and why sharks can regenerate their teeth, then we might learn how humans could grow new teeth in later lives. With Gareth Fraser Assistant Professor in Biology at the University of Florida Zerina Johanson Merit Researcher in the Department of Earth Sciences at the Natural History Museum and Philip Donoghue Professor of Palaeobiology at the University of Bristol Producer: Simon Tillotson

Melvyn Bragg and guests discuss why the potato crop failures in the 1840s had such a catastrophic impact in Ireland. It is estimated that one million people died from disease or starvation after the blight and another two million left the country within the decade. There had been famines before, but not on this scale. What was it about the laws, attitudes and responses that made this one so devastating? The image above is from The Illustrated London News, Dec. 29, 1849, showing a scalp or shelter, "a hole, surrounded by pools, and three sides of the scalp were dripping with water, which ran in small streams over the floor and out by the entrance. The poor inhabitants said they would be thankful if the landlord would leave them there, and the Almighty would spare their lives. Its principal tenant is Margaret Vaughan." With Cormac O'Grada Professor Emeritus in the School of Economics at University College Dublin Niamh Gallagher University Lecturer in Modern British and Irish History at the University of Cambridge And Enda Delaney Professor of Modern History and School Director of Research at the University of Edinburgh Producer: Simon Tillotson

Melvyn Bragg and guests discuss the effective partition of England in the 880s after a century of Viking raids, invasions and settlements. Alfred of Wessex, the surviving Anglo-Saxon king and Guthrum, a Danish ruler, had fought each other to a stalemate and came to terms, with Guthrum controlling the land to the east (once he had agreed to convert to Christianity). The key strategic advantage the invaders had was the Viking ships which were far superior and enabled them to raid from the sea and up rivers very rapidly. Their Great Army had arrived in the 870s, conquering the kingdom of Northumbria and occupying York. They defeated the king of Mercia and seized part of his land. They killed the Anglo-Saxon king of East Anglia and gained control of his territory. It was only when a smaller force failed to defeat Wessex that the Danelaw came into being, leaving a lasting impact on the people and customs of that area. With Judith Jesch Professor of Viking Studies at the University of Nottingham John Hines Professor of Archaeology at Cardiff University And Jane Kershaw ERC Principal Investigator in Archaeology at the University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the life and works of Hopkins (1844-89), a Jesuit priest who at times burned his poems and at others insisted they should not be published. His main themes are how he, nature and God relate to each other. His friend Robert Bridges preserved Hopkins' poetry and, once printed in 1918, works such as The Windhover, Pied Beauty and As Kingfishers Catch Fire were celebrated for their inventiveness and he was seen as a major poet, perhaps the greatest of the Victorian age. With Catherine Phillips R J Owens Fellow in English at Downing College, University of Cambridge Jane Wright Senior Lecturer in English Literature at the University of Bristol and Martin Dubois Assistant Professor in Nineteenth Century Literature at Durham University Producer: Simon Tillotson

Melvyn Bragg and guests discuss what it means to be oneself, a question explored by philosophers from Aristotle to the present day, including St Augustine, Kierkegaard, Heidegger and Sartre. In Hamlet, Polonius said 'To thine own self be true', but what is the self, and what does it mean to be true to it, and why should you be true? To Polonius, if you are true to yourself, ‘thou canst not be false to any man’ - but with the rise of the individual, authenticity became a goal in itself, regardless of how that affected others. Is authenticity about creating yourself throughout your life, or fulfilling the potential with which you were born, connecting with your inner child, or something else entirely? What are the risks to society if people value authenticity more than morality - that is, if the two are incompatible? The image above is of Sartre, aged 8 months, perhaps still connected to his inner child. With Sarah Richmond Associate Professor in Philosophy at University College London Denis McManus Professor of Philosophy at the University of Southampton and Irene McMullin Senior Lecturer in Philosophy at the University of Essex Producer: Simon Tillotson

Melvyn Bragg and guests discuss the impact on the British Isles of William Cecil, 1st Baron Burghley, the most poweful man in the court of Elizabeth I. He was both praised and attacked for his flexibility, adapting to the reigns of Protestant and Catholic monarchs and, under Elizabeth, his goal was to make England strong, stable and secure from attack from its neighbours. He sought control over Ireland and persuaded Elizabeth that Mary Queen of Scots must die, yet often counselled peace rather than war in the interests of prosperity. With Diarmaid MacCulloch Professor of the History of the Church at the University of Oxford Susan Doran Professor of Early Modern British History at the University of Oxford and John Guy Fellow of Clare College, University of Cambridge Producer: Simon Tillotson

Melvyn Bragg and guests discuss the life, works, context and legacy of Antarah (525-608AD), the great poet and warrior. According to legend, he was born a slave; his mother was an Ethiopian slave, his father an elite Arab cavalryman. Antarah won his freedom in battle and loved a woman called Abla who refused him, and they were later celebrated in the saga of Antar and Abla. One of Antarah's poems was so esteemed in pre-Islamic Arabia that it is believed it was hung up on the wall of the Kaaba in Mecca. With James Montgomery Sir Thomas Adams's Professor of Arabic at the University of Cambridge Marlé Hammond Senior Lecturer in Arabic Popular Literature and Culture at SOAS, University of London And Harry Munt Lecturer in Medieval History at the University of York Producer: Simon Tillotson

Melvyn Bragg and guests discuss how members of the same species send each other invisible chemical signals to influence the way they behave. Pheromones are used by species across the animal kingdom in a variety of ways, such as laying trails to be followed, to raise the alarm, to scatter from predators, to signal dominance and to enhance attractiveness and, in honey bees, even direct development into queen or worker. The image above is of male and female ladybirds that have clustered together in response to pheromones. With Tristram Wyatt Senior Research Fellow at the Department of Zoology at the University of Oxford Jane Hurst William Prescott Professor of Animal Science at the University of Liverpool and Francis Ratnieks Professor of Apiculture and Head of the Laboratory of Apiculture and Social Insects at the University of Sussex Producer: Simon Tillotson

Melvyn Bragg and guests discuss how artists from the Middle Ages onwards have been inspired by the Bible story of the widow who killed an Assyrian general who was besieging her village, and so saved her people from his army and from his master Nebuchadnezzar. A symbol of a woman's power and the defiance of political tyranny, the image of Judith has been sculpted by Donatello, painted on the ceiling of the Sistine Chapel and, in the case of Caravaggio, Liss and Artemisia Gentileschi, been shown with vivid, disturbing detail. What do these interpretations reveal of the attitudes to power and women in their time, and of the artists' own experiences? The image of Judith, above is from a tapestry in the Duomo, Milan, by Giovanni or Nicola Carcher, 1555 With Susan Foister Curator of Early Netherlandish, German and British Painting at the National Gallery John Gash Senior Lecturer in History of Art at the University of Aberdeen And Ela Nutu Hall Research Associate at the Sheffield Institute for Interdisciplinary Biblical Studies, at the University of Sheffield Producer: Simon Tillotson

Melvyn Bragg and guests discuss the remarkable achievement of Aristotle (384-322BC) in the realm of biological investigation, for which he has been called the originator of the scientific study of life. Known mainly as a philosopher and the tutor for Alexander the Great, who reportedly sent him animal specimens from his conquests, Aristotle examined a wide range of life forms while by the Sea of Marmara and then on the island of Lesbos. Some ideas, such as the the spontaneous generation of flies, did not survive later scrutiny, yet his influence was extraordinary and his work was unequalled until the early modern period. The image above is of the egg and embryo of a dogfish, one of the animals Aristotle described accurately as he recorded their development. With Armand Leroi Professor of Evolutionary Development Biology at Imperial College London Myrto Hatzimichali Lecturer in Classics at the University of Cambridge And Sophia Connell Lecturer in Philosophy at Birkbeck, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the life of the Welsh nobleman, also known as Owen Glendower, who began a revolt against Henry IV in 1400 which was at first very successful. Glyndwr (c1359-c1415) adopted the title Prince of Wales and established a parliament and his own foreign policy, until he was defeated by the future Henry V. Owain Glyndwr escaped and led guerilla attacks for several years but was never betrayed to the English, disappearing without trace. With Huw Pryce Professor of Welsh History at Bangor University Helen Fulton Professor of Medieval Literature at the University of Bristol Chris Given-Wilson Emeritus Professor of Medieval History at the University of St Andrews Producer: Simon Tillotson

Melvyn Bragg and guests discuss the ideas and life of one of the greatest mathematicians of the 20th century, Emmy Noether. Noether’s Theorem is regarded as one of the most important mathematical theorems, influencing the evolution of modern physics. Born in 1882 in Bavaria, Noether studied mathematics at a time when women were generally denied the chance to pursue academic careers and, to get round objections, she spent four years lecturing under a male colleague’s name. In the 1930s she faced further objections to her teaching, as she was Jewish, and she left for the USA when the Nazis came to power. Her innovative ideas were to become widely recognised and she is now considered to be one of the founders of modern algebra. With Colva Roney Dougal Professor of Pure Mathematics at the University of St Andrews David Berman Professor in Theoretical Physics at Queen Mary, University of London Elizabeth Mansfield Professor of Mathematics at the University of Kent Producer: Simon Tillotson

Melvyn Bragg and guests discuss Samuel Beckett (1906 - 1989), who lived in Paris and wrote his plays and novels in French, not because his French was better than his English, but because it was worse. In works such as Waiting for Godot, Endgame, Molloy and Malone Dies, he wanted to show the limitations of language, what words could not do, together with the absurdity and humour of the human condition. In part he was reacting to the verbal omnipotence of James Joyce, with whom he’d worked in Paris, and in part to his experience in the French Resistance during World War 2, when he used code, writing not to reveal meaning but to conceal it. With Steven Connor Professor of English at the University of Cambridge Laura Salisbury Professor of Modern Literature at the University of Exeter And Mark Nixon Associate Professor in Modern Literature at the University of Reading and co-director of the Beckett International Foundation Producer: Simon Tillotson

Melvyn Bragg and guests discuss why, in 1870, the Vatican Council issued the decree ‘pastor aeternus’ which, among other areas, affirmed papal infallibility. It meant effectively that the Pope could not err in his teachings, an assertion with its roots in the early Church when the bishop of Rome advanced to being the first among equals, then overall head of the Christian Church in the West. The idea that the Pope could not err had been a double-edged sword from the Middle Ages, though; while it apparently conveyed great power, it also meant a Pope was constrained by whatever a predecessor had said. If a later Pope were to contradict an earlier Pope, then one of them must be wrong, and how could that be…if both were infallible? With Tom O’Loughlin Professor of Historical Theology at the University of Nottingham Rebecca Rist Professor in Medieval History at the University of Reading And Miles Pattenden Departmental Lecturer in Early Modern History at the University of Oxford Producer: Simon Tillotson and Julia Johnson

Melvyn Bragg and guests discuss the planet Venus which is both the morning star and the evening star, rotates backwards at walking speed and has a day which is longer than its year. It has long been called Earth’s twin, yet the differences are more striking than the similarities. Once imagined covered with steaming jungles and oceans, we now know the surface of Venus is 450 degrees celsius, and the pressure there is 90 times greater than on Earth, enough to crush an astronaut. The more we learn of it, though, the more we learn of our own planet, such as whether Earth could become more like Venus in some ways, over time. With Carolin Crawford Public Astronomer at the Institute of Astronomy and Fellow of Emmanuel College, University of Cambridge Colin Wilson Senior Research Fellow in Planetary Science at the University of Oxford And Andrew Coates Professor of Physics at Mullard Space Science Laboratory, University College London Produced by: Simon Tillotson and Julia Johnson

Melvyn Bragg and guests discuss how, from 1834, poor people across England and Wales faced new obstacles when they could no longer feed or clothe themselves, or find shelter. Parliament, in line with the ideas of Jeremy Bentham and Thomas Malthus, feared hand-outs had become so attractive, they stopped people working to support themselves, and encouraged families to have more children than they could afford. To correct this, under the New Poor Laws it became harder to get any relief outside a workhouse, where families would be separated, husbands from wives, parents from children, sisters from brothers. Many found this regime inhumane, while others protested it was too lenient, and it lasted until the twentieth century. The image above was published in 1897 as New Year's Day in the Workhouse. With Emma Griffin Professor of Modern British History at the University of East Anglia Samantha Shave Lecturer in Social Policy at the University of Lincoln And Steven King Professor of Economic and Social History at the University of Leicester Producer: Simon Tillotson

In a programme first broadcast in 2018, Melvyn Bragg and guests discuss one of the jewels of medieval English poetry. It was written c1400 by an unknown poet and then was left hidden in private collections until the C19th when it emerged. It tells the story of a giant green knight who disrupts Christmas at Camelot, daring Gawain to cut off his head with an axe if he can do the same to Gawain the following year. Much to the surprise of Arthur's court, who were kicking the green head around, the decapitated body reaches for his head and rides off, leaving Gawain to face his promise and his apparently inevitable death the following Christmas. The illustration above is ©British Library Board Cotton MS Nero A.x, article 3, ff.94v95 With Laura Ashe Professor of English Literature at Worcester College, University of Oxford Ad Putter Professor of Medieval English Literature at the University of Bristol And Simon Armitage Poet and Professor of Poetry at the Universities of Leeds and Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the war in Europe which begain in 1618 and continued on such a scale and with such devastation that its like was not seen for another three hundred years. It pitched Catholics against Protestants, Lutherans against Calvinists and Catholics against Catholics across the Holy Roman Empire, drawing in their neighbours and it lasted for thirty gruelling years, from the Defenestration of Prague to the Peace of Westphalia of 1648. Many more civilians died than soldiers, and famine was so great that even cannibalism was excused. This topic was chosen from several hundred suggested by listeners this autumn. The image above is a detail from a painting of The Battle of White Mountain on 7-8 November 1620, by Pieter Snayers (1592-1667) With Peter Wilson Chichele Professor of the History of War at the University of Oxford Ulinka Rublack Professor of Early Modern European History at the University of Cambridge and Fellow of St John’s College And Toby Osborne Associate Professor in History at Durham University Producer: Simon Tillotson

Melvyn Bragg and guests discuss a foundation story for China as it was reshaped under Mao Zedong. In October 1934, around ninety thousand soldiers of the Red Army broke out of a siege in Jiangxi in the south east of the country, hoping to find a place to regroup and rebuild. They were joined by other armies, and this turned into a very long march to the west and then north, covering thousands of miles of harsh and hostile territory, marshes and mountains, pursued by forces of the ruling Kuomintang for a year. Mao Zedong was among the marchers and emerged at the head of them, and he ensured the officially approved history of the Long March would be an inspiration and education for decades to come. With Rana Mitter Professor of the History and Politics of Modern China and Fellow of St Cross College, University of Oxford Sun Shuyun Historian, writer of 'The Long March' and film maker And Julia Lovell Professor in Modern Chinese History and Literature at Birkbeck, University of London Producer: Simon Tillotson

Melvyn Bragg and guests discuss the philosophy of hope. To the ancient Greeks, hope was closer to self-deception, one of the evils left in Pandora's box or jar, in Hesiod's story. In Christian tradition, hope became one of the theological virtues, the desire for divine union and the expectation of receiving it, an action of the will rather than the intellect. To Kant, 'what may I hope' was one of the three basic questions which human reason asks, while Nietzsche echoed Hesiod, arguing that leaving hope in the box was a deception by the gods, reflecting human inability to face the demands of existence. Yet even those critical of hope, like Camus, conceded that life was nearly impossible without it. With Beatrice Han-Pile Professor of Philosophy at the University of Essex Robert Stern Professor of Philosophy at the University of Sheffield And Judith Wolfe Professor of Philosophical Theology at the University of St Andrews Producer: Simon Tillotson

Melvyn Bragg and guests discuss Horace (65-8BC), who flourished under the Emperor Augustus. He was one of the greatest poets of his age and is one of the most quoted of any age. Carpe diem, nil desperandum, nunc est bibendum – that’s Horace. He was the son of a freedman from southern Italy and, thanks to his talent, achieved high status in Rome despite fighting on the losing side in the civil wars. His Odes are widely thought his most enduring works, yet he also wrote his scurrilous Epodes, some philosophical Epistles and broad Satires. He’s influenced poets ever since, including those such as Wilfred Owen who rejected his line: ‘dulce et decorum est pro patria mori’. With Emily Gowers Professor of Latin Literature at the University of Cambridge and Fellow of St John’s College William Fitzgerald Professor of Latin Language and Literature at King’s College London and Ellen O’Gorman Senior Lecturer in Classics at the University of Bristol Producer: Simon Tillotson

In a programme first broadcast in November 2018, Melvyn Bragg and guests discuss the Austrian princess Maria Antonia, child bride of the future French King Louis XVI. Their marriage was an attempt to bring about a major change in the balance of power in Europe and to undermine the influence of Prussia and Great Britain, but she had no say in the matter and was the pawn of her mother, the Empress Maria Theresa. She fulfilled her allotted role of supplying an heir, but was sent to the guillotine in 1793 in the French Revolution, a few months after her husband, following years of attacks on her as a woman who, it was said, betrayed the King and as a foreigner who betrayed France to enemy powers. When not doing these wrongs, she was said to be personally bankrupting France. Her death shocked royal families throughout Europe, and she became a powerful symbol of the consequences of the Revolution. With Catriona Seth Marshal Foch Professor of French Literature at the University of Oxford Katherine Astbury Professor of French Studies at the University of Warwick and David McCallam Reader in French Eighteenth-Century Studies at the University of Sheffield Producer: Simon Tillotson

Melvyn Bragg and guests discuss the properties of atoms or molecules with a single unpaired electron, which tend to be more reactive, keen to seize an electron to make it a pair. In the atmosphere, they are linked to reactions such as rusting. Free radicals came to prominence in the 1950s with the discovery that radiation poisoning operates through free radicals, as it splits water molecules and produces a very reactive hydroxyl radical which damages DNA and other molecules in the cell. There is also an argument that free radicals are a byproduct of normal respiration and over time they cause an accumulation of damage that is effectively the process of ageing. For all their negative associations, free radicals play an important role in signalling and are also linked with driving cell division, both cancer and normal cell division, even if they tend to become damaging when there are too many of them. With Nick Lane Professor of Evolutionary Biochemistry at University College London Anna Croft Associate Professor at the Department of Chemical and Environmental Engineering at the University of Nottingham And Mike Murphy Professor of Mitochondrial Redox Biology at Cambridge University Producer: Simon Tillotson

Melvyn Bragg and guests discuss Bernard Mandeville (1670-1733) and his critique of the economy as he found it in London, where private vices were condemned without acknowledging their public benefit. In his poem The Grumbling Hive (1705), he presented an allegory in which the economy collapsed once knavish bees turned honest. When republished with a commentary, The Fable of the Bees was seen as a scandalous attack on Christian values and Mandeville was recommended for prosecution for his tendency to corrupt all morals. He kept writing, and his ideas went on to influence David Hume and Adam Smith, as well as Keynes and Hayek. With David Wootton Anniversary Professor of History at the University of York Helen Paul Lecturer in Economics and Economic History at the University of Southampton And John Callanan Senior Lecturer in Philosophy at King’s College London Producer: Simon Tillotson

In the second of two programmes marking In Our Time's 20th anniversary on 15th October, Melvyn Bragg and guests discuss Shakespeare's versions of history, continuing with the Roman plays. Rome was the setting for Titus Andronicus, Julius Caesar, Coriolanus and parts of Antony and Cleopatra and these plays gave Shakespeare the chance to explore ideas too controversial for English histories. How was Shakespeare reimagining Roman history, and what impact has that had on how we see Rome today? The image above is of Marlon Brando playing Mark Antony in a scene from the film version of Shakespeare's Julius Caesar, 1953 With Sir Jonathan Bate Provost of Worcester College, University of Oxford Catherine Steel Professor of Classics and Dean of Research in the College of Arts at the University of Glasgow And Patrick Gray Associate Professor of English Studies at Durham University Producer: Simon Tillotson

In the first of two programmes marking In Our Time's 20th anniversary on 15th October, Melvyn Bragg and guests discuss Shakespeare's versions of history, starting with the English Plantagenets. His eight plays from Richard II to Richard III were written out of order, in the Elizabethan era, and have had a significant impact on the way we see those histories today. In the second programme, Melvyn discusses the Roman plays. The image above is of Richard Burton (1925 - 1984) as Henry V in the Shakespeare play of the same name, from 1951 With Emma Smith Professor of Shakespeare Studies at Hertford College, University of Oxford Gordon McMullan Professor of English at King’s College London and Director of the London Shakespeare Centre And Katherine Lewis Senior Lecturer in Medieval History at the University of Huddersfield Producer: Simon Tillotson

Melvyn Bragg and guests discuss the works of Wharton (1862-1937) such as The Age of Innocence for which she won the Pulitzer Prize and was the first woman to do so, The House of Mirth, and The Custom of the Country. Her novels explore the world of privileged New Yorkers in the Gilded Age of the late C19th, of which she was part, drawing on her own experiences and written from the perspective of the new century, either side of WW1 . Among her themes, she examined the choices available to women and the extent to which they could ever really be free, even if rich. With Dame Hermione Lee Biographer, former President of Wolfson College, Oxford Bridget Bennett Professor of American Literature and Culture at the University of Leeds And Laura Rattray Reader in North American Literature at the University of Glasgow Producer: Simon Tillotson

Melvyn Bragg and guests discuss the ideas and life of the German theologian, born in Breslau/Wroclaw in 1906 and killed in the Flossenbürg concentration camp on 9th April 1945. Bonhoeffer developed ideas about the role of the Church in the secular world, in particular Germany after the Nazis took power in 1933 and demanded the Churches' support. He strongly opposed anti-Semitism and, with a role in the Military Intelligence Department, took part in the resistance, plotting to kill Hitler and meeting with contacts in the Allies. Bonhoeffer's ideas on Christian ethics and the relationship between Christianity and humanism spread more widely from the 1960s with the discovery of unpublished works, including those written in prison as he awaited execution. With Stephen Plant Dean and Runcie Fellow at Trinity Hall at the University of Cambridge Eleanor McLaughlin Lecturer in Theology and Ethics at the University of Winchester and Lecturer in Ethics at Regent’s Park College at the University of Oxford And Tom Greggs Marischal Chair of Divinity at the University of Aberdeen Producer: Simon Tillotson

Melvyn Bragg and guests discuss the history of real and imagined machines that appear to be living, and the questions they raise about life and creation. Even in myth they are made by humans, not born. The classical Greeks built some and designed others, but the knowledge of how to make automata and the principles behind them was lost in the Latin Christian West, remaining in the Greek-speaking and Arabic-speaking world. Western travellers to those regions struggled to explain what they saw, attributing magical powers. The advance of clockwork raised further questions about what was distinctly human, prompting Hobbes to argue that humans were sophisticated machines, an argument explored in the Enlightenment and beyond. The image above is Jacques de Vaucanson's mechanical duck (1739), which picked up grain, digested and expelled it. If it looks like a duck... with Simon Schaffer Professor of History of Science at Cambridge University Elly Truitt Associate Professor of Medieval History at Bryn Mawr College And Franziska Kohlt Doctoral Researcher in English Literature and the History of Science at the University of Oxford Producer: Simon Tillotson

Melvyn Bragg and guests discuss the great epic poem attributed to Homer, telling the story of an intense episode in the Trojan War. It is framed by the wrath of the Greek hero Achilles, insulted by his leader Agamemnon and withdrawing from the battle that continued to rage, only returning when his close friend Patroclus is killed by the Trojan hero Hector. Achilles turns his anger from Agamemnon to Hector and the fated destruction of Troy comes ever closer. With Edith Hall Professor of Classics at King's College London Barbara Graziosi Professor of Classics at Princeton University And Paul Cartledge A.G. Leventis Senior Research Fellow and Emeritus Professor of Greek Culture at Clare College, Cambridge Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the ideas of William Morris, known in his lifetime for his poetry and then his contribution to the Arts and Crafts movement, and increasingly for his political activism. He felt the world had given in to drudgery and ugliness and he found inspiration in the time before industrialisation, in the medieval life which was about fellowship and association and ways of working which resisted the division of labour and allowed the worker to exercise his or her imagination. Seeing a disconnection between art and society, his solution was revolution which in his view was the only way to reset their relationship. The image above is from the Strawberry Thief wallpaper design by William Morris. With Ingrid Hanson Lecturer in 18th and 19th Century Literature at the University of Manchester Marcus Waithe University Senior Lecturer in English Literature at the University of Cambridge and Fellow of Magdalene College And Jane Thomas Professor of Victorian and Early 20th Century Literature at the University of Hull Producer: Simon Tillotson.

Melvyn and guests discuss the 1846-48 conflict after which the United States of Mexico lost half its territory to the United States of America. The US gained land covered by the states of Texas, Utah, California, New Mexico, Nevada, Arizona and part of Colorado. The outcome had a profound impact on Native Americans and led to civil war in defeated Mexico. It also raised the question of whether slavery would be legal in this acquired territory - something that would only be resolved in the US Civil War, which this victory hastened. With Frank Cogliano Professor of American History at the University of Edinburgh Jacqueline Fear-Segal Professor of American and Indigenous Histories at the University of East Anglia And Thomas Rath Lecturer in Latin American History at University College London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss how some bats, dolphins and other animals emit sounds at high frequencies to explore their environments, rather than sight. This was such an unlikely possibility, to natural historians from C18th onwards, that discoveries were met with disbelief even into the C20th; it was assumed that bats found their way in the dark by touch. Not all bats use echolocation, but those that do have a range of frequencies for different purposes and techniques for preventing themselves becoming deafened by their own sounds. Some prey have evolved ways of detecting when bats are emitting high frequencies in their direction, and some fish have adapted to detect the sounds dolphins use to find them. With Kate Jones Professor of Ecology and Biodiversity at University College London Gareth Jones Professor of Biological Sciences at the University of Bristol And Dean Waters Lecturer in the Environment Department at the University of York Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the ideas of Charles-Louis de Secondat, Baron de La Brède et de Montesquieu (1689-1755) whose works on liberty, monarchism, despotism, republicanism and the separation of powers were devoured by intellectuals across Europe and New England in the eighteenth century, transforming political philosophy and influencing the American Constitution. He argued that an individual's liberty needed protection from the arm of power, checking that by another power; where judicial, executive and legislative power were concentrated in the hands of one figure, there could be no personal liberty. With Richard Bourke Professor in the History of Political Thought at Queen Mary, University of London Rachel Hammersley Senior Lecturer in Intellectual History at Newcastle University And Richard Whatmore Professor of Modern History at the University of St Andrews and Director of the St Andrews Institute of Intellectual History Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the role of the great 'City of the Persians' founded by Darius I as the ceremonial capital of the Achaemenid Empire that stretched from the Indus Valley to Egypt and the coast of the Black Sea. It was known as the richest city under the sun and was a centre at which the Empire's subject peoples paid tribute to a succession of Achaemenid leaders, until the arrival of Alexander III of Macedon who destroyed it by fire supposedly in revenge for the burning of the Acropolis in Athens. The image above is a detail from a relief at the Apadana, the huge audience hall, and shows a lion attacking a bull. With Lloyd Llewellyn-Jones Professor of Ancient History at Cardiff University Vesta Sarkhosh Curtis Curator of Middle Eastern Coins at the British Museum And Lindsay Allen Lecturer in Greek and Near Eastern History at King's College London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the great Norwegian playwright and poet, best known for his middle class tragedies such as The Wild Duck, Hedda Gabler, A Doll's House and An Enemy of the People. These are set in a world where the middle class is dominant and explore the qualities of that life, its weaknesses and boundaries and the ways in which it takes away freedoms. It is the women who fare the worst in this society, something Ibsen explored in A Doll's House among others, a play that created a sensation with audiences shocked to watch a woman break free of her bourgeois family life to find her destiny. He explored dark secrets such as incest and, in Ghosts, hereditary syphilis, which attracted the censors. He gave actresses parts they had rarely had before, and audiences plays that, after Shakespeare, became the most performed in the world. With Tore Rem Professor of English Literature at the University of Oslo Kirsten Shepherd-Barr Professor of English and Theatre Studies and Tutorial Fellow, St Catherine's College at the University of Oxford And Dinah Birch Professor of English Literature and Pro-Vice Chancellor for Cultural Engagement at the University of Liverpool Producer: Simon Tillotson.

Melvyn Bragg and guests discuss one of the most remarkable queens of the Middle Ages who took control when her husband, Henry VI, was incapable. Margaret of Anjou (1430-1482) wanted Henry to stay in power for the sake of their son, the heir to the throne, and her refusal to back down was seen by her enemies as a cause of the great dynastic struggle of the Wars of the Roses. The image above is from the Talbot Shrewsbury Book, showing John Talbot, 1st Earl of Shrewsbury, presenting Margaret with that book on her betrothal to Henry With Katherine Lewis Senior Lecturer in Medieval History at the University of Huddersfield James Ross Reader in Late Medieval History at the University of Winchester And Joanna Laynesmith Visiting Research Fellow at the University of Reading Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the 1861 declaration by Tsar Alexander II that serfs were now legally free of their landlords. Until then, over a third of Russians were tied to the land on which they lived and worked and in practice there was little to distinguish their condition from slavery. Russia had lost the Crimean War in 1855 and there had been hundreds of uprisings, prompting the Tsar to tell the nobles, "The existing condition of owning souls cannot remain unchanged. It is better to begin to destroy serfdom from above than to wait until that time when it begins to destroy itself from below." Reform was constrained by the Tsar's wish to keep the nobles on side and, for the serfs, tied by debt and law to the little land they were then allotted, the benefits were hard to see. With Sarah Hudspith Associate Professor in Russian at the University of Leeds Simon Dixon The Sir Bernard Pares Professor of Russian History at UCL And Shane O'Rourke Senior Lecturer in History at the University of York Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the eleven stories of Celtic mythology and Arthurian romance known as The Mabinogion, most of which were told and retold for generations before being written down in C14th. Among them are stories of Pwyll and Rhiannon and their son Pryderi, of Culhwch and Olwen, of the dream of the Emperor Macsen, of Lludd and Llefelys, of magic and giants and imagined history. With common themes but no single author, they project an image of the Island of Britain before the Anglo-Saxons and Normans and before Edward I's conquest of Wales. They came to new prominence, worldwide, from C19th with the translation into English by Lady Charlotte Guest aided by William Owen Pughe. The image above is of Cynon ap Clydno approaching the Castle of Maidens from the tale of Owain, or the Lady of the Fountain With Sioned Davies Professor in the School of Welsh at Cardiff University Helen Fulton Professor of Medieval Literature at the University of Bristol And Juliette Wood Associate Lecturer in the School of Welsh at Cardiff University Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the Berber people who grew to dominate the western Maghreb, founded Marrakesh and took control of Al-Andalus. They were desert people, wearing veils over their faces to keep out the sand, and they wanted a simpler form of Islam. They called themselves the Murabitun, the people who gathered together to fight the holy war, and they were tough fighters; the Spanish knight El Cid fought them and lost, and the legend that built around him said the Almoravids were terrible and had to be resisted. They kept back the Christians of northern Spain, so helping extend Muslim rule in the Iberian Peninsula, before they themselves were destroyed and replaced by their rivals, the Almohads, from the Atlas Mountains. The image above shows the interior of the cupola, Almoravid Koubba, Marrakesh (C11th) With Amira K Bennison Professor in the History and Culture of the Maghreb at the University of Cambridge Nicola Clarke Lecturer in the History of the Islamic World at Newcastle University And Hugh Kennedy Professor of Arabic at SOAS, University of London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the discovery and growing understanding of the Proton, formed from three quarks close to the Big Bang and found in the nuclei of all elements. The positive charges they emit means they attract the fundamental particles of negatively charged electrons, an attraction that leads to the creation of atoms which in turn leads to chemistry, biology and life itself. The Sun (in common with other stars) is a fusion engine that turn protons by a series of processes into helium, emitting energy in the process, with about half of the Sun's protons captured so far. Hydrogen atoms, stripped of electrons, are single protons which can be accelerated to smash other nuclei and have applications in proton therapy. Many questions remain, such as why are electrical charges for protons and electrons so perfectly balanced? With Frank Close Professor Emeritus of Physics at the University of Oxford Helen Heath Reader in Physics at the University of Bristol And Simon Jolly Lecturer in High Energy Physics at University College London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss what Virginia Woolf called 'one of the few English novels written for grown-up people'. It was written by George Eliot, the pen name of Mary Anne Evans (1819-80), published in 8 parts in 1871-72, and was originally two separate stories which became woven together. One, 'Middlemarch', focused on a doctor, Tertius Lydgate and the other, 'Miss Brooke', on Dorothea Brooke who became the central figure in the finished work. The events are set in a small town in the Midlands, surrounded by farmland, leading up to the Reform Act 1832, and the novel explores the potential to change in matters of religion, social status, marriage and politics, and is particularly concerned with the opportunities available to women to lead fulfilling lives. The image above shows Rufus Sewell and Juliet Aubrey in the BBC adaptation, from 1994 With Rosemary Ashton Emeritus Quain Professor of English Language and Literature at University College London Kathryn Hughes Professor of Life Writing at the University of East Anglia And John Bowen Professor of Nineteenth-Century Literature at the University of York Producer: Simon Tillotson.

In a programme first broadcast on April 12th 2018, Melvyn Bragg and guests discuss the contribution of George Stephenson (1781-1848) and his son Robert (1803-59) to the development of the railways in C19th. George became known as The Father of Railways and yet arguably Robert's contribution was even greater, with his engineering work going far beyond their collaboration. Robert is credited with the main role in the design of their locomotives. George had worked on stationary colliery steam engines and, with Robert, developed the moving steam engine Locomotion No1 for the Stockton and Darlington Railway in 1825. They produced the Rocket for the Rainhill Trials on the Liverpool and Manchester Railway in 1829. From there, the success of their designs and engineering led to the expansion of railways across Britain and around the world. with Dr Michael Bailey Railway historian and editor of the most recent biography of Robert Stephenson Julia Elton Past President of the Newcomen Society for the History of Engineering and Technology and Colin Divall Professor Emeritus of Railway Studies at the University of York Producer: Simon Tillotson. This programme is a repeat

Melvyn Bragg and guests discuss the role of slavery in the Roman world, from its early conquests to the fall of the Western Empire. The system became so entrenched that no-one appeared to question it, following Aristotle's view that slavery was a natural state. Whole populations could be marched into slavery after military conquests, and the freedom that Roman citizens prized for themselves, even in poverty, was partly defined by how it contrasted with enslavement. Slaves could be killed or tortured with impunity, yet they could be given great responsibility and, once freed, use their contacts to earn fortunes. The relationship between slave and master informed early Christian ideas of how the faithful related to God, informing debate for centuries. With Neville Morley Professor of Classics and Ancient History at the University of Exeter Ulrike Roth Senior Lecturer in Ancient History at the University of Edinburgh And Myles Lavan Senior lecturer in Ancient History at the University of St Andrews Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Alexis de Tocqueville (1805-1859) and his examination of the American democratic system. He wrote De La Démocratie en Amérique in two parts, published in 1835 and 1840, when France was ruled by the July Monarchy of Louis-Philippe. Tocqueville was interested in how aspects of American democracy, in the age of President Andrew Jackson, could be applied to Europe as it moved away from rule by monarchs and aristocrats. His work has been revisited by politicians ever since, particularly in America, with its analysis of the strengths and weaknesses of direct democracy and its warnings of mediocrity and the tyranny of the majority. With Robert Gildea Professor of Modern History at the University of Oxford Susan-Mary Grant Professor of American History at Newcastle University and Jeremy Jennings Professor of Political Theory and Head of the School of Politics & Economics at King's College London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss St Augustine of Hippo's account of his conversion to Christianity and his life up to that point. Written c397AD, it has many elements of autobiography with his scrutiny of his earlier life, his long relationship with a concubine, his theft of pears as a child, his work as an orator and his embrace of other philosophies and Manichaeism. Significantly for the development of Christianity, he explores the idea of original sin in the context of his own experience. The work is often seen as an argument for his Roman Catholicism, a less powerful force where he was living in North Africa where another form of Christianity was dominant, Donatism. While Augustine retells many episodes from his own life, the greater strength of his Confessions has come to be seen as his examination of his own emotional development, and the growth of his soul. With Kate Cooper Professor of History at the University of London and Head of History at Royal Holloway Morwenna Ludlow Professor of Christian History and Theology at the University of Exeter and Martin Palmer Visiting Professor in Religion, History and Nature at the University of Winchester Producer: Simon Tillotson.

Melvyn Bragg and guests discuss how and why Highlanders and Islanders were cleared from their homes in waves in C18th and C19th, following the break up of the Clans after the Battle of Culloden. Initially, landlords tried to keep people on their estates for money-making schemes, but the end of the Napoleonic Wars brought convulsive changes. Some of the evictions were notorious, with the sudden and fatal burning of townships, to make way for sheep and deer farming. For many, migration brought a new start elsewhere in Britain or in the British colonies, while for some it meant death from disease while in transit. After more than a century of upheaval, the Clearances left an indelible mark on the people and landscape of the Highlands and Western Isles. The image above is a detail from a print of 'Lochaber No More' by John Watson Nicol 1856-1926 With Sir Tom Devine Professor Emeritus of Scottish History at the University of Edinburgh Marjory Harper Professor of History at the University of Aberdeen and Visiting Professor at the University of the Highlands and Islands And Murray Pittock Bradley Professor of English Literature and Pro Vice Principal at the University of Glasgow Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the ideas attributed to Sun Tzu (544-496BC, according to tradition), a legendary figure from the beginning of the Iron Age in China, around the time of Confucius. He may have been the historical figure Sun Wu, a military adviser at the court of King Helu of Wu (who reigned between about 514 and 496 BC), one of the kings in power in the Warring States period of Chinese history (6th - 5th century BC). Sun Tzu was credited as the author of The Art of War, a work on military strategy that soon became influential in China and then Japan both for its guidance on conducting and avoiding war and for its approach to strategy generally. After The Art of War was translated into European languages in C18th, its influence spread to military academies around the world. The image above is of a terracotta warrior from the tomb of Qin Shi Huang, the first Emperor, who unified China after the Warring States period. With Hilde De Weerdt Professor of Chinese History at Leiden University Tim Barrett Professor Emeritus of East Asian History at SOAS, University of London And Imre Galambos Reader in Chinese Studies at the University of Cambridge Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the pioneering scientist Rosalind Franklin (1920 - 1958). During her distinguished career, Franklin carried out ground-breaking research into coal and viruses but she is perhaps best remembered for her investigations in the field of DNA. In 1952 her research generated a famous image that became known as Photograph 51. When the Cambridge scientists Francis Crick and James Watson saw this image, it enabled them the following year to work out that DNA has a double-helix structure, one of the most important discoveries of modern science. Watson, Crick and Franklin's colleague Maurice Wilkins received a Nobel Prize in 1962 for this achievement but Franklin did not and today many people believe that Franklin has not received enough recognition for her work. With: Patricia Fara President of the British Society for the History of Science Jim Naismith Interim lead of the Rosalind Franklin Institute, Director of the Research Complex at Harwell and Professor at the University of Oxford Judith Howard Professor of Chemistry at Durham University Producer: Victoria Brignell.

Melvyn Bragg and guests discuss fungi. These organisms are not plants or animals but a kingdom of their own. Millions of species of fungi live on the Earth and they play a crucial role in ecosystems, enabling plants to obtain nutrients and causing material to decay. Without fungi, life as we know it simply would not exist. They are also a significant part of our daily life, making possible the production of bread, wine and certain antibiotics. Although fungi brought about the colonisation of the planet by plants about 450 million years ago, some species can kill humans and devastate trees. With: Lynne Boddy Professor of Fungal Ecology at Cardiff University Sarah Gurr Professor of Food Security in the Biosciences Department at the University of Exeter David Johnson N8 Chair in Microbial Ecology at the University of Manchester Producer: Victoria Brignell.

In a programme first broadcast in 2018, Melvyn Bragg and guests discuss the life and ideas of Frederick Douglass, who was born into slavery in Maryland in 1818 and, once he had escaped, became one of that century's most prominent abolitionists. He was such a good orator, his opponents doubted his story, but he told it in grim detail in 1845 in his book 'Narrative of the Life of Frederick Douglass, an American Slave.' He went on to address huge audiences in Great Britain and Ireland and there some of his supporters paid off his owner, so Douglass could be free in law and not fear recapture. After the Civil War and the abolition of slavery, he campaigned for equal rights for African-Americans, arguing against those such as Lincoln who had wanted freed slaves to leave America and found a colony elsewhere. "We were born here," he said, "and here we will remain." With Celeste-Marie Bernier Professor of Black Studies in the English Department at the University of Edinburgh Karen Salt Assistant Professor in Transnational American Studies at the University of Nottingham And Nicholas Guyatt Reader in North American History at the University of Cambridge Producer: Simon Tillotson.

The octopus, the squid, the nautilus and the cuttlefish are some of the most extraordinary creatures on this planet, intelligent and yet apparently unlike other life forms. They are cephalopods and are part of the mollusc family like snails and clams, and they have some characteristics in common with those. What sets them apart is the way members of their group can change colour, camouflage themselves, recognise people, solve problems, squirt ink, power themselves with jet propulsion and survive both on land, briefly, and in the deepest, coldest oceans. And, without bones or shells, they grow so rapidly they can outstrip their rivals when habitats change, making them the great survivors and adaptors of the animal world. With Louise Allcock Lecturer in Zoology at the National University of Ireland, Galway Paul Rodhouse Emeritus Fellow of the British Antarctic Survey and Jonathan Ablett Senior Curator of Molluscs at the Natural History Museum Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the ideas developed by Marcus Tullius Cicero (106-43BC) to support and reinvigorate the Roman Republic when, as it transpired, it was in its final years, threatened by civil wars, the rule of Julius Caesar and the triumvirates that followed. As Consul he had suppressed a revolt by Catiline, putting the conspirators to death summarily as he believed the Republic was in danger and that this danger trumped the right to a fair trial, a decision that rebounded on him. While in exile he began works on duty, laws, the orator and the republic. Although left out of the conspiracy to kill Caesar, he later defended that murder in the interests of the Republic, only to be murdered himself soon after. With Melissa Lane The Class of 1943 Professor of Politics at Princeton University and 2018 Carlyle Lecturer at the University of Oxford Catherine Steel Professor of Classics at the University of Glasgow And Valentina Arena Reader in Roman History at University College London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the work, ideas and life of the Russian poet whose work was celebrated in C20th both for its quality and for what it represented, written under censorship in the Stalin years. Her best known poem, Requiem, was written after her son was imprisoned partly as a threat to her and, to avoid punishment for creating it, she passed it on to her supporters to be memorised, line by line, rather than written down. She was a problem for the authorities and became significant internationally, as her work came to symbolise resistance to political tyranny and the preservation of pre-Revolutionary liberal values in the Soviet era. The image above is based on 'Portrait of Anna Akhmatova' by N.I. Altman, 1914, Moscow With Katharine Hodgson Professor in Russian at the University of Exeter Alexandra Harrington Reader in Russian Studies at Durham University And Michael Basker Professor of Russian Literature and Dean of Arts at the University of Bristol Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the event of which Voltaire, two hundred years later, said 'nothing was more well known'. In 1565, Suleiman the Magnificent, the Ottoman leader, sent a great fleet west to lay siege to Malta and capture it for his empire. Victory would mean control of trade across the Mediterranean and a base for attacks on Spain, Sicily and southern Italy, even Rome. It would also mean elimination of Malta's defenders, the Knights Hospitaller, driven by the Ottomans from their base in Rhodes in 1522 and whose raids on his shipping had long been a thorn in his side. News of the Great Siege of Malta spread fear throughout Europe, though that turned to elation when, after four months of horrific fighting, the Ottomans withdrew, undermined by infighting between their leaders and the death of the highly-valued admiral, Dragut. The Knights Hospitaller had shown that Suleiman's forces could be contained, and their own order was reinvigorated. The image above is the Death of Dragut at the Siege of Malta (1867), after a painting by Giuseppe Cali. Dragut (1485 – 1565) was an Ottoman Admiral and privateer, known as The Drawn Sword of Islam and as one of the finest generals of the time. With Helen Nicholson Professor of Medieval History at Cardiff University Diarmaid MacCulloch Professor of the History of the Church at the University of Oxford and Kate Fleet Director of the Skilliter Centre for Ottoman Studies and Fellow of Newnham College, Cambridge Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Shakespeare's best known, most quoted and longest play, written c1599 - 1602 and rewritten throughout his lifetime. It is the story of Hamlet, Prince of Denmark, encouraged by his father's ghost to take revenge on his uncle who murdered him, and is set at the court of Elsinore. In soliloquies, the Prince reveals his inner self to the audience while concealing his thoughts from all at the Danish court, who presume him insane. Shakespeare gives him lines such as 'to be or not to be,' 'alas, poor Yorick,' and 'frailty thy name is woman', which are known even to those who have never seen or read the play. And Hamlet has become the defining role for actors, men and women, who want to show their mastery of Shakespeare's work. The image above is from the 1964 film adaptation, directed by Grigori Kozintsev, with Innokenty Smoktunovsky as Hamlet. With Sir Jonathan Bate Provost of Worcester College, University of Oxford Carol Rutter Professor of Shakespeare and Performance Studies at the University of Warwick And Sonia Massai Professor of Shakespeare Studies at King's College London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss one of the great composers, who was born into a family of musicians in Bonn. His grandfather was an eminent musician and also called Ludwig van Beethoven. His father, who was not as talented as Beethoven's grandfather, drank heavily and died when Beethoven was still young. It was his move to Vienna that allowed him to flourish, with the support at first of aristocratic patrons, when that city was the hub of European music. He is credited with developing the symphony further than any who preceded him, with elevating instrumental above choral music and with transforming music to the highest form of art. He composed his celebrated works while, from his late twenties onwards, becoming increasingly deaf. (Before the live broadcast, BBC Radio 3's Breakfast programme played selections from Beethoven, with Essential Classics playing more, immediately after, on the same network.) With Laura Tunbridge Professor of Music and Henfrey Fellow, St Catherine's College, University of Oxford John Deathridge Emeritus King Edward Professor of Music at King's College London And Erica Buurman Senior Lecturer in Music, Canterbury Christchurch University Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the man who was Henry II's Chancellor and then Archbishop of Canterbury and who was murdered by knights in Canterbury Cathedral (depicted by Matthew Paris, above). Henry believed that Becket owed him loyalty as he had raised him to the highest offices, and that he should agree to Henry's courts having jurisdiction over 'criminous clerics'. They fell out when Becket agreed to this jurisdiction verbally but would not put his seal on the agreement, the Constitutions of Clarendon. The rift deepened when Henry's heir was crowned without Becket, who excommunicated the bishops who took part. Becket's tomb became one of the main destinations for pilgrims for the next 400 years, including those in Chaucer's Canterbury Tales where he was the 'blisful martir'. With Laura Ashe Associate Professor of English at Worcester College, University of Oxford Michael Staunton Associate Professor in History at University College Dublin And Danica Summerlin Lecturer in Medieval History at the University of Sheffield Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Herman Melville's (1819-1891) epic novel, published in London in 1851, the story of Captain Ahab's pursuit of a great white sperm whale that had bitten off his leg. He risks his own life and that of his crew on the Pequod, single-mindedly seeking his revenge, his story narrated by Ishmael who was taking part in a whaling expedition for the first time. This is one of the c1000 ideas which listeners sent in this autumn for our fourth Listener Week, following Kafka's The Trial in 2014, Captain Cook in 2015 and Garibaldi and the Risorgimento in 2016. With Bridget Bennett Professor of American Literature and Culture at the University of Leeds Katie McGettigan Lecturer in American Literature at Royal Holloway, University of London And Graham Thompson Associate Professor of American Studies at the University of Nottingham Producer: Simon Tillotson.

In a programme first broadcast in 2017, Melvyn Bragg and guests discuss Gauss (1777-1855), widely viewed as one of the greatest mathematicians of all time. He was a child prodigy, correcting his father's accounts before he was 3, dumbfounding his teachers with the speed of his mental arithmetic, and gaining a wealthy patron who supported his education. He wrote on number theory when he was 21, with his Disquisitiones Arithmeticae, which has influenced developments since. Among his achievements, he was the first to work out how to make a 17-sided polygon, he predicted the orbit of the minor planet Ceres, rediscovering it, he found a way of sending signals along a wire, using electromagnetism, the first electromagnetic telegraph, and he advanced the understanding of parallel lines on curved surfaces. With Marcus du Sautoy Professor of Mathematics and Simonyi Professor for the Public Understanding of Science at the University of Oxford Colva Roney-Dougal Reader in Pure Mathematics at the University of St Andrews And Nick Evans Professor of Theoretical Physics at the University of Southampton Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the myths and history of the ancient Greek city of Thebes and its depiction in Athenian drama. In myths it was said to be home to Heracles, Dionysus, Oedipus and Cadmus among others and, in history, was infamous for supporting Xerxes in the Persian War. Its prominence led to a struggle with the rising force of Macedon in which the Thebans were defeated at Chaironea in 338 BC, one of the most important battles in ancient history. The position of Thebes in Greek culture was enormously powerful. The strength of its myths and its proximity to Athens made it a source of stories for the Athenian theatre, and is the setting for more of the surviving plays than any other location. The image, above, is of Oedipus answering questions of the sphinx in Thebes (cup 5th century BC). With Edith Hall Professor of Classics at King's College London Samuel Gartland Lecturer in Ancient History at Corpus Christi College, University of Oxford and Paul Cartledge Emeritus Professor of Greek Culture and AG Leventis Senior Research Fellow at Clare College, University of Cambridge Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the life and impact of Germaine de Staël (1766-1817) who Byron praised as Europe's greatest living writer, and was at the heart of intellectual and literary life in the France of revolution and of Napoleon. As well as attracting and inspiring others in her salon, she wrote novels, plays. literary criticism, political essays, and poems and developed the ideas behind Romanticism. She achieved this while regularly exiled from the Paris in which she was born, having fallen out with Napoleon who she opposed, becoming a towering figure in the history of European ideas. With Catriona Seth, Marshal Foch Professor of French Literature at the University of Oxford Alison Finch, Professor Emerita of French Literature at the University of Cambridge and Katherine Astbury, Associate Professor and Reader in French Studies at the University of Warwick. Producer: Simon Tillotson.

Melvyn Bragg and guests discuss The Picts and, to mark our twentieth season, that discussion takes place in front of a student audience at the University of Glasgow, many of them studying this topic. According to Bede writing c731AD, the Picts, with the English, Britons, Scots and Latins, formed one of the five nations of Britain, 'an island in the ocean formerly called Albion'. The Picts is now a label given to the people who lived in Scotland north of the Forth-Clyde line from about 300 AD to 900 AD, from the time of the Romans to the time of the Vikings. They left intricately carved stones, such as the one above with a bull motif, from Burghead, Moray, Scotland, but there are relatively few other traces. Who were they, and what happened to them? And what has been learned in the last twenty years, through archaeology? With Katherine Forsyth Reader in the Department of Celtic and Gaelic at the University of Glasgow Alex Woolf Senior Lecturer in Dark Age Studies at the University of St Andrews and Gordon Noble Reader in Archaeology at the University of Aberdeen Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the context and impact of Pablo Picasso's iconic work, created soon after the bombing on 26th April 1937 that obliterated much of the Basque town of Guernica, and its people. The attack was carried out by warplanes of the German Condor Legion, joined by the Italian air force, on behalf of Franco's Nationalists. At first the Nationalists denied responsibility, blaming their opponents for creating the destruction themselves for propaganda purposes, but the accounts of journalists such as George Steer, and the prominence of Picasso's work, kept the events of that day under close scrutiny. Picasso's painting has gone on to become a symbol warning against the devastation of war. With Mary Vincent Professor of Modern European History at the University of Sheffield Gijs van Hensbergen Historian of Spanish Art and Fellow of the LSE Cañada Blanch Centre for Contemporary Spanish Studies and Dacia Viejo Rose Lecturer in Heritage in the Department of Archaeology at the University of Cambridge Fellow of Selwyn College Producer: Simon Tillotson.

In a programme first broadcast in 2017, Melvyn Bragg and guests discuss the development of theories about dinosaur feathers, following discoveries of fossils which show evidence of feathers. All dinosaurs were originally thought to be related to lizards - the word 'dinosaur' was created from the Greek for 'terrible lizard' - but that now appears false. In the last century, discoveries of fossils with feathers established that at least some dinosaurs were feathered and that some of those survived the great extinctions and evolved into the birds we see today. There are still many outstanding areas for study, such as what sorts of feathers they were, where on the body they were found, what their purpose was and which dinosaurs had them. With Mike Benton Professor of Vertebrate Palaeontology at the University of Bristol Steve Brusatte Reader and Chancellor's Fellow in Vertebrate Palaeontology at the University of Edinburgh and Maria McNamara Senior Lecturer in Geology at University College, Cork Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the conference convened by the victorious powers of the Napoleonic Wars and the earlier French Revolutionary Wars, which had devastated so much of Europe over the last 25 years. The powers aimed to create a long lasting peace, partly by redrawing the map to restore old boundaries and partly by balancing the powers so that none would risk war again. It has since been seen as a very conservative outcome, reasserting the old monarchical and imperial orders over the growth of liberalism and national independence movements, and yet also largely successful in its goal of preventing war in Europe on such a scale for another 100 years. Delegates to Vienna were entertained at night with lavish balls, and the image above is from a French cartoon showing Russia, Prussia, and Austria dancing to the bidding of Castlereagh, the British delegate. With Kathleen Burk Professor Emerita of Modern and Contemporary History at University College London Tim Blanning Emeritus Professor of Modern European History at the University of Cambridge and John Bew Professor in History and Foreign Policy at the War Studies Department at King's College London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Aphra Behn (1640-1689), who made her name and her living as a playwright, poet and writer of fiction under the Restoration. Virginia Woolf wrote of her: ' All women together, ought to let flowers fall upon the grave of Aphra Behn... for it was she who earned them the right to speak their minds'. Behn may well have spent some of her early life in Surinam, the setting for her novel Oroonoko, and there are records of her working in the Netherlands as a spy for Charles II. She was loyal to the Stuart kings, and refused to write a poem on the coronation of William of Orange. She was regarded as an important writer in her lifetime and inspired others to write, but fell out of favour for two centuries after her death when her work was seen as too bawdy, the product of a disreputable age. The image above is from the Yale Center for British Art and is titled 'Aphra Behn, by Sir Peter Lely, 1618-1680' With Janet Todd Former President of Lucy Cavendish College, Cambridge University Ros Ballaster Professor of 18th Century Literature at Mansfield College, University of Oxford and Claire Bowditch Post-doctoral Research Associate in English and Drama at Loughborough University Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the life, reputation and impact of Constantine I, known as Constantine the Great (c280s -337AD). Born in modern day Serbia and proclaimed Emperor by his army in York in 306AD, Constantine became the first Roman Emperor to profess Christianity. He legalised Christianity and its followers achieved privileges that became lost to traditional religions, leading to the steady Christianisation of the Empire. He built a new palace in Byzantium, renaming it Constantinople, as part of the decentralisation of the Empire, an Eastern shift that saw Roman power endure another thousand years there, long after the collapse of the empire in the West. With Christopher Kelly Professor of Classics and Ancient History at the University of Cambridge and President of Corpus Christi College Lucy Grig Senior Lecturer in Roman History at the University of Edinburgh and Greg Woolf Director of the Institute of Classical Studies, University of London Producer: Simon Tillotson.

In a programme first broadcast in 2017, Melvyn Bragg and guests discuss Emily Bronte (1818-1848) and her only novel, published in 1847 under the name 'Ellis Bell' just a year before her death. It is the story of Heathcliff, a foundling from Liverpool brought up in the Earnshaw family at the remote Wuthering Heights, high on the moors, who becomes close to the young Cathy Earnshaw but hears her say she can never marry him. He disappears and she marries his rival, Edgar Linton, of Thrushcross Grange even though she feels inextricably linked with Heathcliff, exclaiming to her maid 'I am Heathcliff!' On his return, Heathcliff steadily works through his revenge on all who he believes wronged him, and their relations. When Cathy dies, Heathcliff longs to be united with her in the grave. The raw passions and cruelty of the story unsettled Emily's sister Charlotte Bronte, whose novel Jane Eyre had been published shortly before, and who took pains to explain its roughness, jealousy and violence when introducing it to early readers. Over time, with its energy, imagination and scope, Wuthering Heights became celebrated as one of the great novels in English. The image above is of Laurence Olivier as Heathcliff and Merle Oberon as Cathy on the set of the Samuel Goldwyn Company movie 'Wuthering Heights', circa 1939. With Karen O'Brien Professor of English Literature at the University of Oxford John Bowen Professor of Nineteenth Century Literature at the University of York and Alexandra Lewis Lecturer in English Literature at the University of Aberdeen Producer: Simon Tillotson.

Melvyn Bragg and guests discuss how, in the Enlightenment, Immanuel Kant (1724-1804) sought to define the difference between right and wrong by applying reason, looking at the intention behind actions rather than at consequences. He was inspired to find moral laws by natural philosophers such as Newton and Leibniz, who had used reason rather than emotion to analyse the world around them and had identified laws of nature. Kant argued that when someone was doing the right thing, that person was doing what was the universal law for everyone, a formulation that has been influential on moral philosophy ever since and is known as the Categorical Imperative. Arguably even more influential was one of his reformulations, echoed in The Universal Declaration of Human Rights, in which he asserted that humanity has a value of an entirely different kind from that placed on commodities. Kant argued that simply existing as a human being was valuable in itself, so that every human owed moral responsibilities to other humans and was owed responsibilities in turn. With Alison Hills Professor of Philosophy at St John's College, Oxford David Oderberg Professor of Philosophy at the University of Reading and John Callanan Senior Lecturer in Philosophy at King's College, London Producer: Simon Tillotson.

Melvyn Bragg and his guests discuss the Central Asian polymath al-Biruni and his eleventh-century book the India.Born in around 973 in the central Asian region of Chorasmia, al-Biruni became an itinerant scholar of immense learning, a master of mathematics, medicine, astronomy and many languages. He corresponded with the age's greatest scientist, Avicenna, and made significant contributions to many fields of knowledge.In 1017 al-Biruni became a member of the court of the ruler Mahmud of Ghazna. Over the course of the next thirteen years he wrote the India, a comprehensive account of Hindu culture which was the first book about India by a Muslim scholar. It contains detailed information about Hindu religion, science and everyday life which have caused some to call it the first work of anthropology.With:James MontgomeryProfessor of Classical Arabic at the University of CambridgeHugh KennedyProfessor of Arabic in the School of Oriental and African Studies at the University of LondonAmira BennisonSenior Lecturer in Middle Eastern and Islamic Studies at the University of CambridgeProducer: Thomas Morris.

In a programme first broadcast in 2017, Melvyn Bragg and guests discuss why some birds migrate and others do not, how they select their destinations and how they navigate the great distances, often over oceans. For millennia, humans set their calendars to birds' annual arrivals, and speculated about what happened when they departed, perhaps moving deep under water, or turning into fish or shellfish, or hibernating while clinging to trees upside down. Ideas about migration developed in C19th when, in Germany, a stork was noticed with an African spear in its neck, indicating where it had been over the winter and how far it had flown. Today there are many ideas about how birds use their senses of sight and smell, and magnetic fields, to find their way, and about why and how birds choose their destinations and many questions. Why do some scatter and some flock together, how much is instinctive and how much is learned, and how far do the benefits the migrating birds gain outweigh the risks they face? With Barbara Helm Reader at the Institute of Biodiversity, Animal Health and Comparative Medicine at the University of Glasgow Tim Guilford Professor of Animal Behaviour and Tutorial Fellow of Zoology at Merton College, Oxford and Richard Holland Senior Lecturer in Animal Cognition at Bangor University Producer: Simon Tillotson.

Is it always better to be just than unjust? That is the central question of Plato's Republic, discussed here by Melvyn Bragg and guests. Writing in c380BC, Plato applied this question both to the individual and the city-state, considering earlier and current forms of government in Athens and potential forms, in which the ideal city might be ruled by philosophers. The Republic is arguably Plato's best known and greatest work, a dialogue between Socrates and his companions, featuring the allegory of the cave and ideas about immortality of the soul, the value of poetry to society, and democracy's vulnerability to a clever demagogue seeking tyranny. With Angie Hobbs Professor of the Public Understanding of Philosophy at the University of Sheffield MM McCabe Professor of Ancient Philosophy Emerita at King's College London and James Warren Fellow of Corpus Christi College and a Reader in Ancient Philosophy at the University of Cambridge Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Alexander Pushkin's verse novel, the story of Eugene Onegin, widely regarded as his masterpiece. Pushkin (pictured above) began this in 1823 and worked on it over the next ten years, while moving around Russia, developing the central character of a figure all too typical of his age, the so-called superfluous man. Onegin is cynical, disillusioned and detached, his best friend Lensky is a romantic poet and Tatyana, whose love for Onegin is not returned until too late, is described as a poetic ideal of a Russian woman, and they are shown in the context of the Russian landscape and society that has shaped them. Onegin draws all three into tragic situations which, if he had been willing and able to act, he could have prevented, and so becomes the one responsible for the misery of himself and others as well as the death of his friend. With Andrew Kahn Professor of Russian Literature at the University of Oxford and Fellow of St Edmund Hall Emily Finer Lecturer in Russian and Comparative Literature at the University of St Andrews and Simon Dixon The Sir Bernard Pares Professor of Russian History at University College London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss what, in C19th America's Gilded Age, was one of the most significant protest movements since the Civil War with repercussions well into C20th. Farmers in the South and Midwest felt ignored by the urban and industrial elites who were thriving as the farmers suffered droughts and low prices. The farmers were politically and physically isolated. As one man wrote on his abandoned farm, 'two hundred and fifty miles to the nearest post office, one hundred miles to wood, twenty miles to water, six inches to Hell'. They formed the Populist or People's Party to fight their cause, put up candidates for President, won several states and influenced policies. In the South, though, their appeal to black farmers stimulated their political rivals to suppress the black vote for decades and set black and poor white farmers against each other, tightening segregation. Aspects of the Populists ideas re-emerged effectively in Roosevelt's New Deal, even if they are mainly remembered now, if at all, thanks to allegorical references in The Wizard of Oz. The caricature above is of William Jennings Bryan, Populist-backed Presidential candidate. With Lawrence Goldman Professor of History at the Institute of Historical Research, University of London Mara Keire Lecturer in US History at the University of Oxford And Christopher Phelps Associate Professor of American Studies at the University of Nottingham Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the life and works of Christine de Pizan, who wrote at the French Court in the late Middle Ages and was celebrated by Simone de Beauvoir as the first woman to 'take up her pen in defence of her sex.' She wrote across a broad range, and was particularly noted for challenging the depiction of women by famous writers such as Jean de Meun, author of the Romance of the Rose. She has been characterised as an early feminist who argued that women could play a much more important role in society than the one they were allotted, reflected in arguably her most important work, The Book of the City of Ladies, a response to the seemingly endless denigration of women in popular texts of the time. The image above, of Christine de Pizan lecturing, is (c)The British Library Board. Harley 4431, f.259v. With Helen Swift Associate Professor of Medieval French at the University of Oxford and Fellow of St Hilda's College Miranda Griffin Lecturer in French and Fellow of St Catharine's College, Cambridge and Marilynn Desmond Distinguished Professor of English and Comparative Literature at Binghamton University Producer: Simon Tillotson.

Melvyn Bragg and guests discuss enzymes, the proteins that control the speed of chemical reactions in living organisms. Without enzymes, these reactions would take place too slowly to keep organisms alive: with their actions as catalysts, changes which might otherwise take millions of years can happen hundreds of times a second. Some enzymes break down large molecules into smaller ones, like the ones in human intestines, while others use small molecules to build up larger, complex ones, such as those that make DNA. Enzymes also help keep cell growth under control, by regulating the time for cells to live and their time to die, and provide a way for cells to communicate with each other. With Nigel Richards Professor of Biological Chemistry at Cardiff University Sarah Barry Lecturer in Chemical Biology at King's College London And Jim Naismith Director of the Research Complex at Harwell Bishop Wardlaw Professor of Chemical Biology at the University of St Andrews Professor of Structural Biology at the University of Oxford Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the flourishing of the idea of Purgatory from C12th, when it was imagined as a place alongside Hell and Heaven in which the souls of sinners would be purged of those sins by fire. In the West, there were new systems put in place to pray for the souls of the dead, on a greater scale, with opportunities to buy pardons to shorten time in Purgatory. The idea was enriched with visions, some religious and some literary; Dante imagined Purgatory as a mountain in the southern hemisphere, others such as Marie de France told of The Legend of the Purgatory of Saint Patrick, in which the entrance was on Station Island in County Donegal. This idea of purification by fire had appalled the Eastern Orthodox Church and was one of the factors in the split from Rome in 1054, but flourished in the West up to the reformations of C16th when it was again particularly divisive. With Laura Ashe Associate Professor of English and fellow of Worcester College at the University of Oxford Matthew Treherne Professor of Italian Literature at the University of Leeds and Helen Foxhall Forbes Associate Professor of Early Medieval History at Durham University Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the life and work of Louis Pasteur (1822-1895) and his extraordinary contribution to medicine and science. It is said few people have saved more lives than Pasteur. A chemist, he showed that otherwise identical molecules could exist as 'left' and 'right-handed' versions and that molecules produced by living things were always left-handed. He proposed a germ theory to replace the idea of spontaneous generation. He discovered that microorganisms cause fermentation and disease. He began the process named after him, pasteurisation, heating liquids to 50-60 C to kill microbes. He saved the beer and wine industries in France when they were struggling with microbial contamination. He saved the French silk industry when he found a way of protecting healthy silkworm eggs from disease. He developed vaccines against anthrax and rabies and helped establish immunology. Many of his ideas were developed further after his lifetime, but one of his legacies was a charitable body, the Pasteur Institute, to continue research into infectious disease. With Andrew Mendelsohn Reader in the School of History at Queen Mary, University of London Anne Hardy Honorary Professor at the Centre for History in Public Health at the London School of Hygiene and Tropical Medicine and Michael Worboys Emeritus Professor in the History of Science, Technology and Medicine at the University of Manchester Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the life and works of Emily Dickinson, arguably the most startling and original poet in America in the C19th. According to Thomas Wentworth Higginson, her correspondent and mentor, writing 15 years after her death, "Few events in American literary history have been more curious than the sudden rise of Emily Dickinson into a posthumous fame only more accentuated by the utterly recluse character of her life and by her aversion to even a literary publicity." That was in 1891 and, as more of Dickinson's poems were published, and more of her remaining letters, the more the interest in her and appreciation of her grew. With her distinctive voice, her abundance, and her exploration of her private world, she is now seen by many as one of the great lyric poets. With Fiona Green Senior Lecturer in English at the University of Cambridge and a Fellow of Jesus College Linda Freedman Lecturer in English and American Literature at University College London and Paraic Finnerty Reader in English and American Literature at the University of Portsmouth Producer: Simon Tillotson.

Melvyn Bragg and guests discuss The Battle of Lincoln on 20th May 1217, when two armies fought to keep, or to win, the English crown. This was a struggle between the Angevin and Capetian dynasties, one that followed Capetian successes over the Angevins in France. The forces of the new boy-king, Henry III, attacked those of Louis of France, the claimant backed by rebel Barons. Henry's regent, William Marshal, was almost seventy when he led the charge on Lincoln that day, and his victory confirmed his reputation as England's greatest knight. Louis sent to France for reinforcements but in August these, too, were defeated at sea, at the Battle of Sandwich. As part of the peace deal, Henry reissued Magna Carta, which King John had granted in 1215 but soon withdrawn, and Louis went home, leaving England's Anglo-French rulers more Anglo and less French than he had planned. The image above is by Matthew Paris (c1200-1259) from his Chronica Majora (MS 16, f. 55v) and appears with the kind permission of the Master and Fellows of Corpus Christi College, Cambridge With Louise Wilkinson Professor of Medieval History at Canterbury Christ Church University Stephen Church Professor of Medieval History at the University of East Anglia and Thomas Asbridge Reader in Medieval History at Queen Mary, University of London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the text and context of The Book of the Dead, also known as the Book of Coming Forth by Day, the ancient Egyptian collections of spells which were intended to help the recently deceased navigate the underworld. They flourished under the New Kingdom from C16th BC until the end of the Ptolemaic era in C1st BC, and drew on much earlier traditions from the walls of pyramids and on coffin cases. Almost 200 spells survive, though no one collection contains all of them, and one of the best known surrounds the weighing of the heart, the gods' final judgement of the deceased's life. With John Taylor Curator at the Department of Ancient Egypt and Sudan at the British Museum Kate Spence Senior Lecturer in Egyptian Archaeology at Cambridge University and Fellow of Emmanuel College and Richard Parkinson Professor of Egyptology at the University of Oxford and Fellow of the Queen's College Producer: Simon Tillotson.

The 13th-century English philosopher Roger Bacon is perhaps best known for his major work the Opus Maius. Commissioned by Pope Clement IV, this extensive text covered a multitude of topics from mathematics and optics to religion and moral philosophy. He is also regarded by some as an early pioneer of the modern scientific method. Bacon's erudition was so highly regarded that he came to be known as 'Doctor Mirabilis' or 'wonderful doctor'. However, he is a man shrouded in mystery. Little is known about much of his life and he became the subject of a number of strange legends, including one in which he allegedly constructed a mechanical brazen head that would predict the future. With: Jack Cunningham Academic Coordinator for Theology at Bishop Grosseteste University, Lincoln Amanda Power Associate Professor of Medieval History at the University of Oxford Elly Truitt Associate Professor of Medieval History at Bryn Mawr College Producer: Victoria Brignell.

Melvyn Bragg discusses the life and times of Rosa Luxemburg (1871-1919), 'Red Rosa', who was born in Poland under the Russian Empire and became one of the leading revolutionaries in an age of revolution. She was jailed for agitation and for her campaign against the Great War which, she argued, pitted workers against each other for the sake of capitalism. With Karl Liebknecht and other radicals, she founded the Spartacus League in the hope of ending the war through revolution. She founded the German Communist Party with Liebknecht; with the violence that followed the German Revolution of 1918, her opponents condemned her as Bloody Rosa. She and Liebknecht were seen as ringleaders in the Spartacus Revolt of 1919 and, on 15th January 1919, the Freikorps militia arrested and murdered them. While Luxemburg has faced opposition for her actions and ideas from many quarters, she went on to become an iconic figure in East Germany under the Cold War and a focal point for opposition to the Soviet-backed leadership. With Jacqueline Rose Co-Director of the Birkbeck Institute for the Humanities, Birkbeck, University of London Mark Jones Irish Research Council fellow at the Centre for War Studies, University College Dublin and Nadine Rossol Senior lecturer in Modern European History at the University of Essex Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the life and ideas of Wolfgang Pauli (1900-1958), whose Exclusion Principle is one of the key ideas in quantum mechanics. A brilliant physicist, at 21 Pauli wrote a review of Einstein's theory of general relativity and that review is still a standard work of reference today. The Pauli Exclusion Principle proposes that no two electrons in an atom can be at the same time in the same state or configuration, and it helps explain a wide range of phenomena such as the electron shell structure of atoms. Pauli went on to postulate the existence of the neutrino, which was confirmed in his lifetime. Following further development of his exclusion principle, Pauli was awarded the Nobel Prize in Physics in 1945 for his 'decisive contribution through his discovery of a new law of Nature'. He also had a long correspondence with Jung, and a reputation for accidentally breaking experimental equipment which was dubbed The Pauli Effect. With Frank Close Fellow Emeritus at Exeter College, University of Oxford Michela Massimi Professor of Philosophy of Science at the University of Edinburgh and Graham Farmelo Bye-Fellow of Churchill College, University of Cambridge Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Katsushika Hokusai (1760-1849), the Japanese artist whose views of Mt Fuji such as The Great Wave off Kanagawa (pictured) are some of the most iconic in world art. He worked as Japan was slowly moving towards greater contact with the outside world, trading with China and allowing two Dutch ships to dock each year. From these ships he picked up new synthetic colours and illustrations with Western compositions, which he incorporated in his traditional wood block prints. The quality of his images helped drive demand for prints among the highly literate Japanese public, particularly those required to travel to Edo under feudal obligations and who wanted to collect all his prints. As well as the quality of his work, Hokusai's success stems partly from his long life and career. He completed some of his most memorable works in his 70s and 80s and claimed he would not reach his best until he was 110. With Angus Lockyer Lecturer in Japanese History at SOAS University of London Rosina Buckland Senior Curator of Japanese Collections at the National Museum of Scotland And Ellis Tinios Honorary Lecturer in the School of History, University of Leeds Producer: Simon Tillotson.

Melvyn Bragg and guests discuss what is often called one of the most significant battles in history. In 480BC in the Saronic Gulf near Athens, between the mainland and the island of Salamis, a fleet of Greek allies decisively defeated a larger Persian-led fleet. This halted the further Persian conquest of Greece and, at Plataea and Mycale the next year, further Greek victories brought Persian withdrawal and the immediate threat of conquest to an end. To the Greeks, this enabled a flourishing of a culture that went on to influence the development of civilisation in Rome and, later, Europe and beyond. To the Persians, it was a reverse at the fringes of their vast empire but not a threat to their existence, as it was for the Greek states, and attention turned to quelling unrest elsewhere. With Lloyd Llewellyn-Jones Professor in Ancient History at Cardiff University Lindsay Allen Lecturer in Greek and Near Eastern History, King's College London and Paul Cartledge Emeritus Professor of Greek Culture and AG Leventis Senior Research Fellow at Clare College, University of Cambridge Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the high temperatures that marked the end of the Paleocene and start of the Eocene periods, about 50m years ago. Over c1000 years, global temperatures rose more than 5 C on average and stayed that way for c100,000 years more, with the surface of seas in the Arctic being as warm as those in the subtropics. There were widespread extinctions, changes in ocean currents, and there was much less oxygen in the sea depths. The rise has been attributed to an increase of carbon dioxide and methane in the atmosphere, though it is not yet known conclusively what the source of those gases was. One theory is that a rise in carbon dioxide, perhaps from volcanoes, warmed up the globe enough for warm water to reach the bottom of the oceans and so release methane from frozen crystals in the sea bed. The higher the temperature rose and the longer the water was warm, the more methane was released. Scientists have been studying a range of sources from this long period, from ice samples to fossils, to try to understand more about possible causes. With Dame Jane Francis Professor of Palaeoclimatology at the British Antarctic Survey Mark Maslin Professor of Palaeoclimatology at University College London And Tracy Aze Lecturer in Marine Micropaleontology at the University of Leeds Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Elizabeth Gaskell's novel North and South, published in 1855 after serialisation in Dickens' Household Words magazine. It is the story of Margaret Hale, who was raised in the South in the New Forest and London's Harley Street, and then moves North to a smokey mill town, Milton, in Darkshire. As well as Margaret's emotional life and her growing sense of independence, the novel explores the new ways of living thrown up by industrialisation, and the relationships between 'masters and men'. Many of Margaret Hale's experiences echo Gaskell's own life, as she was born in Chelsea and later moved to Manchester, and the novel has become valued for its insights into social conflicts and the changing world in which Gaskell lived. With Sally Shuttleworth Professor of English Literature at the University of Oxford Dinah Birch Pro-vice Chancellor for Research and Professor of English Literature at the University of Liverpool And Jenny Uglow Biographer of Elizabeth Gaskell Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the Kuiper Belt, a vast region of icy objects at the fringes of our Solar System, beyond Neptune, in which we find the dwarf planet Pluto and countless objects left over from the origins of the solar system, some of which we observe as comets. It extends from where Neptune is, which is 30 times further out than the Earth is from the Sun, to about 500 times the Earth-Sun distance. It covers an immense region of space and it is the part of the Solar System that we know the least about, because it is so remote from us and has been barely detectable by Earth-based telescopes until recent decades. Its existence was predicted before it was known, and study of the Kuiper Belt, and how objects move within it, has led to a theory that there may be a 9th planet far beyond Neptune. With Carolin Crawford Public Astronomer at the Institute of Astronomy and Fellow of Emmanuel College, University of Cambridge Monica Grady Professor of Planetary and Space Sciences at the Open University And Stephen Lowry Reader in Planetary and Space Sciences, University of Kent Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Seneca the Younger, who was one of the first great writers to live his entire life in the world of the new Roman empire, after the fall of the Republic. He was a Stoic philosopher, he wrote blood-soaked tragedies, he was an orator, and he navigated his way through the reigns of Caligula, Claudius and Nero, sometimes exercising power at the highest level and at others spending years in exile. Agrippina the Younger was the one who called for him to tutor Nero, and it is thought Seneca helped curb some of Nero's excesses. He was later revered within the Christian church, partly for what he did and partly for what he was said to have done in forged letters to St Paul. His tragedies, with their ghosts and high body count, influenced Shakespeare's Titus Andronicus and Hamlet, and Kyd's Spanish Tragedy. The image above is the so-called bust of Seneca, a detail from Four Philosophers by Peter Paul Rubens. With Mary Beard Professor of Classics at the University of Cambridge Catharine Edwards Professor of Classics and Ancient History at Birkbeck, University of London and Alessandro Schiesaro Professor of Classics at the University of Manchester Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the flourishing of maths in the early Islamic world, as thinkers from across the region developed ideas in places such as Baghdad's House of Wisdom. Among them were the Persians Omar Khayyam, who worked on equations, and Al-Khwarizmi, latinised as Algoritmi and pictured above, who is credited as one of the fathers of algebra, and the Jewish scholar Al-Samawal, who converted to Islam and worked on mathematical induction. As well as the new ideas, there were many advances drawing on Indian, Babylonian and Greek work and, thanks to the recording or reworking by mathematicians in the Islamic world, that broad range of earlier maths was passed on to western Europe for further study. With Colva Roney-Dougal Reader in Pure Mathematics at the University of St Andrews Peter Pormann Professor of Classics & Graeco-Arabic Studies at the University of Manchester And Jim Al-Khalili Professor of Physics at the University of Surrey Producer: Simon Tillotson.

In a programme first broadcast in 2017, Melvyn Bragg and guests discuss the Northamptonshire poet John Clare who, according to one of Melvyn's guests Jonathan Bate, was 'the greatest labouring-class poet that England has ever produced'. Clare worked in a tavern, as a gardener and as a farm labourer in the early 19th century and achieved his first literary success with Poems Descriptive of Rural Life and Scenery. He was praised for his descriptions of rural England and his childhood there, and his reaction to the changes he saw in the Agricultural Revolution with its enclosures, displacement and altered, disrupted landscape. Despite poor mental health and, from middle age onwards, many years in asylums, John Clare continued to write and he is now seen as one of the great poets of his age. With Sir Jonathan Bate Provost of Worcester College, University of Oxford Mina Gorji Senior Lecturer in the English Faculty and fellow of Pembroke College, Cambridge and Simon Kövesi Professor of English Literature at Oxford Brookes University Producer: Simon Tillotson.

In a programme first broadcast in 2017, Melvyn Bragg and guests discuss the political philosophy of Hannah Arendt. She developed many of her ideas in response to the rise of totalitarianism in the C20th, partly informed by her own experience as a Jew in Nazi Germany before her escape to France and then America. She wanted to understand how politics had taken such a disastrous turn and, drawing on ideas of Greek philosophers as well as her peers, what might be done to create a better political life. Often unsettling, she wrote of 'the banality of evil' when covering the trial of Eichmann, one of the organisers of the Holocaust. With Lyndsey Stonebridge Professor of Modern Literature and History at the University of East Anglia Frisbee Sheffield Lecturer in Philosophy at Girton College, University of Cambridge and Robert Eaglestone Professor of Contemporary Literature and Thought at Royal Holloway, University London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the relationship between parasites and hosts, where one species lives on or in another to the benefit of the parasite but at a cost to the host, potentially leading to disease or death of the host. Typical examples are mistletoe and trees, hookworms and vertebrates, cuckoos and other birds. In many cases the parasite species do so well in or on a particular host that they reproduce much faster and can adapt to changes more efficiently, and it is thought that almost half of all animal species have a parasitic stage in their lifetime. What techniques do hosts have to counter the parasites, and what impact do parasites have on the evolution of their hosts? With Steve Jones Emeritus Professor of Genetics at University College, London Wendy Gibson Professor of Protozoology at the University of Bristol and Kayla King Associate Professor in the Department of Zoology at the University of Oxford Producer: Simon Tillotson.

In a programme first broadcast in 2017, Melvyn Bragg and guests discuss the history of Mary, Queen of Scots, who had potential to be one of the most powerful rulers in Europe, yet she was also one of the most vulnerable. In France, when she was the teenage bride to their future king, she was seen as rightful heir to the thrones of England and Ireland, as well as Queen of Scotland and one day of France, which would have been an extraordinary union. She was widowed too young, though and, a Catholic returning to Protestant Scotland, she struggled to overcome rivalries in her own country. She fled to Protestant England, where she was implicated in plots to overthrow Elizabeth, and it was Elizabeth herself who signed Mary's death warrant. With David Forsyth Principal Curator, Scottish Medieval-Early Modern Collections at National Museums Scotland Anna Groundwater Teaching Fellow in Historical Skills and Methods at the University of Edinburgh And John Guy Fellow of Clare College, University of Cambridge Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Nietzsche's On The Genealogy of Morality - A Polemic, which he published in 1887 towards the end of his working life and in which he considered the price humans have paid, and were still paying, to become civilised. In three essays, he argued that having a guilty conscience was the price of living in society with other humans. He suggested that Christian morality, with its consideration for others, grew as an act of revenge by the weak against their masters, 'the blond beasts of prey', as he calls them, and the price for that slaves' revolt was endless self-loathing. These and other ideas were picked up by later thinkers, perhaps most significantly by Sigmund Freud who further explored the tensions between civilisation and the individual. With Stephen Mulhall Professor of Philosophy and a Fellow and Tutor at New College, University of Oxford Fiona Hughes Senior Lecturer in Philosophy at the University of Essex And Keith Ansell-Pearson Professor of Philosophy at the University of Warwick Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the German astronomer Johannes Kepler (1571 - 1630). Although he is overshadowed today by Isaac Newton and Galileo, he is considered by many to be one of the greatest scientists in history. The three laws of planetary motion Kepler developed transformed people's understanding of the Solar System and laid the foundations for the revolutionary ideas Isaac Newton produced later. Kepler is also thought to have written one of the first works of science fiction. However, he faced a number of challenges. He had to defend his mother from charges of witchcraft, he had few financial resources and his career suffered as a result of his Lutheran faith. With David Wootton Professor of History at the University of York Ulinka Rublack Professor of Early Modern European History at the University of Cambridge and Fellow of St John's College Adam Mosley Associate Professor in the Department of History at Swansea University Producer: Victoria Brignell.

Melvyn Bragg and guests discuss Four Quartets, TS Eliot's last great work which he composed, against a background of imminent and actual world war, as meditations on the relationship between time and humanity. With David Moody Emeritus Professor of English and American Literature at the University of York Fran Brearton Professor of Modern Poetry at Queen's University, Belfast And Mark Ford Professor of English and American Literature at University College London Producer: Simon Tillotson Jeremy Irons will be reading TS Eliot's greatest poems, from Prufrock to The Waste Land to Four Quartets, across New Year's Day here on Radio 4.

In a programme first broadcast in December 2016, Melvyn Bragg and guests discuss the craze for gin in Britain in the mid-18th century and the attempts to control it. With the arrival of William of Orange, it became an act of loyalty to drink Protestant, Dutch gin rather than Catholic brandy, and changes in tariffs made everyday beer less affordable. Within a short time, production increased and large sections of the population that had rarely or never drunk spirits before were consuming two pints of gin a week. As Hogarth indicated in his print 'Beer Street and Gin Lane' (1751) in support of the Gin Act, the damage was severe, and addiction to gin was blamed for much of the crime in cities such as London. With Angela McShane Research Fellow in History at the Victoria and Albert Museum and University of Sheffield Judith Hawley Professor of 18th century literature at Royal Holloway, University of London Emma Major Senior Lecturer in English at the University of York Producer: Simon Tillotson

Melvyn Bragg and guests discuss Harriet Martineau who, from a non-conformist background in Norwich, became one of the best known writers in the C19th. She had a wide range of interests and used a new, sociological method to observe the world around her, from religion in Egypt to slavery in America and the rights of women everywhere. She popularised writing about economics for those outside the elite and, for her own popularity, was invited to the coronation of Queen Victoria, one of her readers. With Valerie Sanders Professor of English at the University of Hull Karen O'Brien Professor of English Literature at the University of Oxford And Ella Dzelzainis Lecturer in 19th Century Literature at Newcastle University Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Giuseppe Garibaldi and the Italian Risorgimento. According to the historian AJP Taylor, Garibaldi was the only wholly admirable figure in modern history. Born in Nice in 1807, one of Garibaldi's aims in life was the unification of Italy and, in large part thanks to him, Italy was indeed united substantially in 1861 and entirely in 1870. With his distinctive red shirt and poncho, he was a hero of Romantic revolutionaries around the world. His fame was secured when, with a thousand soldiers, he invaded Sicily and toppled the monarchy in the Italian south. The Risorgimento was soon almost complete. This topic is the one chosen from over 750 different ideas suggested by listeners in October, for our yearly Listener Week. With Lucy Riall Professor of Comparative History of Europe at the European University Institute and Professor of History at Birkbeck, University of London Eugenio Biagini Professor of Modern and Contemporary History at the University of Cambridge and David Laven Associate Professor of History at the University of Nottingham Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the Baltic Crusades, the name given to a series of overlapping attempts to convert the pagans of North East Europe to Christianity at the point of the sword. From the 12th Century, Papal Bulls endorsed those who fought on the side of the Church, the best known now being the Teutonic Order which, thwarted in Jerusalem, founded a state on the edge of the Baltic, in Prussia. Some of the peoples in the region disappeared, either killed or assimilated, and the consequences for European history were profound. With Aleks Pluskowski Associate Professor of Archaeology at the University of Reading Nora Berend Fellow of St Catharine's College and Reader in European History at the Faculty of History at the University of Cambridge and Martin Palmer Director of the International Consultancy on Religion, Education, and Culture Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the ideas brought together under Justinian I, Byzantine emperor in the 6th century AD, which were rediscovered in Western Europe in the Middle Ages and became very influential in the development of laws in many European nations and elsewhere. With Caroline Humfress Professor of Medieval History at the University of St Andrews Simon Corcoran Lecturer in Ancient History at Newcastle University and Paul du Plessis Senior Lecturer in Civil law and European legal history at the School of Law, University of Edinburgh Producer: Simon Tillotson.

This image: Joseph Mallord William Turner, The Fighting Temeraire, 1839 (c) The National Gallery, London Melvyn Bragg and guests discuss "The Fighting Temeraire", one of Turner's greatest works and the one he called his 'darling'. It shows one of the most famous ships of the age, a hero of Trafalgar, being towed up the Thames to the breakers' yard, sail giving way to steam. Turner displayed this masterpiece to a public which, at the time, was deep in celebration of the Temeraire era, with work on Nelson's Column underway, and it was an immediate success, with Thackeray calling the painting 'a national ode'. With Susan Foister Curator of Early Netherlandish, German and British Painting at the National Gallery David Blayney Brown Manton Curator of British Art 1790-1850 at Tate Britain and James Davey Curator of Naval History at the National Maritime Museum Producer: Simon Tillotson.

"He who saw the Deep" are the first words of the standard version of The Epic of Gilgamesh, the subject of this discussion between Melvyn Bragg and his guests. Gilgamesh is often said to be the oldest surviving great work of literature, with origins in the third millennium BC, and it passed through thousands of years on cuneiform tablets. Unlike epics of Greece and Rome, the intact story of Gilgamesh became lost to later generations until tablets were discovered by Hormuzd Rassam in 1853 near Mosul and later translated. Since then, many more tablets have been found and much of the text has been reassembled to convey the story of Gilgamesh, king of Uruk the sheepfold, and Enkidu who the gods created to stop Gilgamesh oppressing his people. Together they fight Humbaba, monstrous guardian of the Cedar Forest, and kill the Bull of Heaven, for which the gods make Enkidu mortally ill. Gilgamesh goes on a long journey as he tries unsuccessfully to learn how to live forever, learning about the Great Deluge on the way, but his remarkable building works guarantee that his fame will last long after his death. With Andrew George Professor of Babylonian at SOAS, University of London Frances Reynolds Shillito Fellow in Assyriology at the Oriental Institute, University of Oxford and Fellow of St Benet's Hall and Martin Worthington Lecturer in Assyriology at the University of Cambridge Producer: Simon Tillotson.

The scientist John Dalton was born in North England in 1766. Although he came from a relatively poor Quaker family, he managed to become one of the most celebrated scientists of his age. Through his work, he helped to establish Manchester as a place where not only products were made but ideas were born. His reputation during his lifetime was so high that unusually a statue was erected to him before he died. Among his interests were meteorology, gasses and colour blindness. However, he is most remembered today for his pioneering thinking in the field of atomic theory. With: Jim Bennett Former Director of the Museum of the History of Science at the University of Oxford and Keeper Emeritus at the Science Museum Aileen Fyfe Reader in British History at the University of St Andrews James Sumner Lecturer in the History of Technology at the Centre for the History of Science, Technology and Medicine at the University of Manchester Producer: Victoria Brignell.

Melvyn Bragg and guests discuss the changes in the intellectual world of Western Europe in the 12th Century, and their origins. This was a time of Crusades, the formation of states, the start of Gothic architecture, a reconnection with Roman and Greek learning and their Arabic development and the start of the European universities, and has become known as The 12th Century Renaissance. The image above is part of Notre-Dame de la Belle-Verrière, Chartres Cathedral, from 1180. With Laura Ashe Associate Professor of English at Worcester College, University of Oxford Elisabeth van Houts Honorary Professor of European Medieval History at the University of Cambridge and Giles Gasper Reader in Medieval History at Durham University Producer: Simon Tillotson.

Melvyn Bragg and guests discuss plasma, the fourth state of matter after solid, liquid and gas. As over ninety-nine percent of all observable matter in the Universe is plasma, planets like ours, with so little plasma and so much solid, liquid and gas, appear all the more remarkable. On the grand scale, plasma is what the Sun is made from and, when we look into the night sky, almost everything we can see with the naked eye is made of plasma. On the smallest scale, here on Earth, scientists make plasma to etch the microchips on which we rely for so much. Plasma is in the fluorescent light bulbs above our heads and, in laboratories around the world, it is the subject of tests to create, one day, an inexhaustible and clean source of energy from nuclear fusion. With Justin Wark Professor of Physics and Fellow of Trinity College at the University of Oxford Kate Lancaster Research Fellow for Innovation and Impact at the York Plasma Institute at the University of York and Bill Graham Professor of Physics at Queens University, Belfast Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the origins of the Hindu goddess Lakshmi, and of the traditions that have built around her for over 3,000 years. According to the creation story of the Puranas, she came to existence in the churning of the ocean of milk. Her prominent status grew alongside other goddesses in the mainly male world of the Vedas, as female deities came to be seen as the Shakti, the energy of the gods, without which they would be powerless. Lakshmi came to represent the qualities of blessing, prosperity, fertility, beauty and good fortune and, more recently, political order, and she has a significant role in Diwali, one of the most important of the Hindu festivals. With Jessica Frazier Lecturer in Religious Studies at the University of Kent Research Fellow at the Oxford Centre for Hindu Studies at the University of Oxford Jacqueline Suthren-Hirst Senior Lecturer in South Asian Studies at the University of Manchester and Chakravarthi Ram-Prasad Professor of Comparative Religion and Philosophy at Lancaster University Producer: Simon Tillotson.

In a programme first broadcast in 2016, Melvyn Bragg and guests discuss Zeno of Elea, a pre-Socratic philosopher from c490-430 BC whose paradoxes were described by Bertrand Russell as "immeasurably subtle and profound." The best known argue against motion, such as that of an arrow in flight which is at a series of different points but moving at none of them, or that of Achilles who, despite being the faster runner, will never catch up with a tortoise with a head start. Aristotle and Aquinas engaged with these, as did Russell, yet it is still debatable whether Zeno's Paradoxes have been resolved. With Marcus du Sautoy Professor of Mathematics and Simonyi Professor for the Public Understanding of Science at the University of Oxford Barbara Sattler Lecturer in Philosophy at the University of St Andrews and James Warren Reader in Ancient Philosophy at the University of Cambridge Producer: Simon Tillotson

Melvyn Bragg and guests discuss the development of photography in the 1830s, when techniques for 'drawing with light' evolved to the stage where, in 1839, both Louis Daguerre and William Henry Fox Talbot made claims for its invention. These followed the development of the camera obscura, and experiments by such as Thomas Wedgwood and Nicéphore Niépce, and led to rapid changes in the 1840s as more people captured images with the daguerreotype and calotype. These new techniques changed the aesthetics of the age and, before long, inspired claims that painting was now dead. With Simon Schaffer Professor of the History of Science at the University of Cambridge Elizabeth Edwards Emeritus Professor of Photographic History at De Montfort University And Alison Morrison-Low, Research Associate at National Museums Scotland Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the history of the idea of Sovereignty, the authority of a state to govern itself and the relationship between the sovereign and the people. These ideas of external and internal sovereignty were imagined in various ways in ancient Greece and Rome, and given a name in 16th Century France by the philosopher and jurist Jean Bodin in his Six Books of the Commonwealth, where he said (in an early English translation) 'Maiestie or Soveraigntie is the most high, absolute, and perpetuall power over the citisens and subiects in a Commonweale: which the Latins cal Maiestatem, the Greeks akra exousia, kurion arche, and kurion politeuma; the Italians Segnoria, and the Hebrewes tomech shévet, that is to say, The greatest power to command.' Shakespeare also explored the concept through Richard II and the king's two bodies, Hobbes developed it in the 17th Century, and the idea of popular sovereignty was tested in the Revolutionary era in America and France. With Melissa Lane Class of 1943 Professor of Politics at Princeton University Richard Bourke Professor in the History of Political Thought at Queen Mary University of London and Tim Stanton Senior Lecturer in the Department of Politics at the University of York Producer: Simon Tillotson.

Melvyn Bragg and guests discuss William Blake's collection of illustrated poems "Songs of Innocence and of Experience." He published Songs of Innocence first in 1789 with five hand-coloured copies and, five years later, with additional Songs of Experience poems and the explanatory phrase "Shewing the Two Contrary States of the Human Soul." Blake drew on the street ballads and improving children's rhymes of the time, exploring the open and optimistic outlook of early childhood with the darker and more cynical outlook of adult life, in which symbols such as the Lamb belong to innocence and the Tyger to experience. With Sir Jonathan Bate Provost of Worcester College, University of Oxford Sarah Haggarty Lecturer at the Faculty of English and Fellow of Queens' College, University of Cambridge And Jon Mee Professor of Eighteenth-Century Studies at the University of York Producer: Simon Tillotson.

Melvyn Bragg and guests discuss The Bronze Age Collapse, the name given by many historians to what appears to have been a sudden, uncontrolled destruction of dominant civilizations around 1200 BC in the Aegean, Eastern Mediterranean and Anatolia. Among other areas, there were great changes in Minoan Crete, Egypt, the Hittite Empire, Mycenaean Greece and Syria. The reasons for the changes, and the extent of those changes, are open to debate and include droughts, rebellions, the breakdown of trade as copper became less desirable, earthquakes, invasions, volcanoes and the mysterious Sea Peoples. With John Bennet Director of the British School at Athens and Professor of Aegean Archaeology at the University of Sheffield Linda Hulin Fellow of Harris Manchester College and Research Officer at the Oxford Centre for Maritime Archaeology at the University of Oxford And Simon Stoddart Fellow of Magdalene College and Reader in Prehistory at the University of Cambridge Producer: Simon Tillotson.

Melvyn Bragg and guests discuss penicillin, discovered by Alexander Fleming in 1928. It is said he noticed some blue-green penicillium mould on an uncovered petri dish at his hospital laboratory, and that this mould had inhibited bacterial growth around it. After further work, Fleming filtered a broth of the mould and called that penicillin, hoping it would be useful as a disinfectant. Howard Florey and Ernst Chain later shared a Nobel Prize in Medicine with Fleming, for their role in developing a way of mass-producing the life-saving drug. Evolutionary theory predicted the risk of resistance from the start and, almost from the beginning of this 'golden age' of antibacterials, scientists have been looking for ways to extend the lifespan of antibiotics. With Laura Piddock Professor of Microbiology at the University of Birmingham Christoph Tang Professor of Cellular Pathology and Professorial Fellow at Exeter College at the University of Oxford And Steve Jones Emeritus Professor of Genetics at University College, London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the English mystic Margery Kempe (1373-1438) whose extraordinary life is recorded in a book she dictated, The Book of Margery Kempe. She went on pilgrimage to Jerusalem, to Rome and Santiago de Compostela, purchasing indulgences on her way, met with the anchoress Julian of Norwich and is honoured by the Church of England each 9th November. She sometimes doubted the authenticity of her mystical conversations with God, as did the authorities who saw her devotional sobbing, wailing and convulsions as a sign of insanity and dissoluteness. Her Book was lost for centuries, before emerging in a private library in 1934. The image (above), of an unknown woman, comes from a pew at Margery Kempe's parish church, St Margaret's, Kings Lynn and dates from c1375. With Miri Rubin Professor of Medieval and Early Modern History at Queen Mary, University of London Katherine Lewis Senior Lecturer in History at the University of Huddersfield And Anthony Bale Professor of Medieval Studies at Birkbeck University of London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Abraham Lincoln's Gettysburg Address, ten sentences long, delivered at the dedication of the Soldiers' National Cemetery at Gettysburg after the Union forces had won an important battle with the Confederates. Opening with " Four score and seven years ago," it became one of the most influential statements of national purpose, asserting that America was "conceived in liberty, and dedicated to the proposition that all men are created equal" and "that this nation, under God, shall have a new birth of freedom-and that government of the people, by the people, for the people, shall not perish from the earth." Among those inspired were Martin Luther King Jr whose "I have a dream" speech, delivered at the Lincoln Memorial 100 years later, echoed Lincoln's opening words. With Catherine Clinton Denman Chair of American History at the University of Texas and International Professor at Queen's University, Belfast Susan-Mary Grant Professor of American History at Newcastle University And Tim Lockley Professor of American History at the University of Warwick Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the Muses and their role in Greek mythology, when they were goddesses of poetry, song, music and dance: what the Greeks called mousike, 'the art of the Muses' from which we derive our word 'music.' While the number of Muses, their origin and their roles varied in different accounts and at different times, they were consistently linked with the nature of artistic inspiration. This raised a question for philosophers then and since: was a creative person an empty vessel into which the Muses poured their gifts, at their will, or could that person do something to make inspiration flow? With Paul Cartledge Emeritus Professor of Greek Culture and AG Leventis Senior Research Fellow at Clare College, University of Cambridge Angie Hobbs Professor of the Public Understanding of Philosophy, University of Sheffield And Penelope Murray Founder member and retired Senior Lecturer, Department of Classics, University of Warwick Producer: Simon Tillotson Image: 'Apollo and the Muses (Parnassus)', 1631-1632. Oil on canvas. Nicolas Poussin (1594-1665).

Melvyn Bragg and guests discuss Titus Oates (1649-1705) who, with Israel Tonge, spread rumours of a Catholic plot to assassinate Charles II. From 1678, they went to great lengths to support their scheme, forging evidence and identifying the supposed conspirators. Fearing a second Gunpowder Plot, Oates' supposed revelations caused uproar in London and across the British Isles, with many Catholics, particularly Jesuit priests, wrongly implicated by Oates and then executed. Anyone who doubted him had to keep quiet, to avoid being suspected a sympathiser and thrown in prison. Oates was eventually exposed, put on trial under James II and sentenced by Judge Jeffreys to public whipping through the streets of London, but the question remained: why was this rogue, who had faced perjury charges before, ever believed? With Clare Jackson Senior Tutor and Director of Studies in History at Trinity Hall, University of Cambridge Mark Knights Professor of History at the University of Warwick And Peter Hinds Associate Professor of English at Plymouth University Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Tess of the d'Urbervilles by Thomas Hardy, originally serialised in The Graphic in 1891 and, with some significant changes, published as a complete novel in 1892. The book was controversial even before serialisation, rejected by one publisher as too overtly sexual, to which a second added it did not publish 'stories where the plot involves frequent and detailed reference to immoral situations.' Hardy's description of Tess as 'A Pure Woman' in 1892 incensed some Victorian readers. He resented having to censor some of his scenes in the early versions, including references to Tess's baby following her rape by Alec d'Urberville, and even to a scene where Angel Clare lifted four milkmaids over a flooded lane (substituting transportation by wheelbarrow). The image above, from the 1891 edition, is captioned 'It Was Not Till About Three O'clock That Tess Raised Her Eyes And Gave A Momentary Glance Round. She Felt But Little Surprise At Seeing That Alec D'urberville Had Come Back, And Was Standing Under The Hedge By The Gate'. With Dinah Birch Professor of English Literature and Pro-Vice-Chancellor for Research and Impact at the University of Liverpool Francis O'Gorman Professor of Victorian Literature at the University of Leeds And Jane Thomas Reader in Victorian and early Twentieth Century literature at the University of Hull Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Euclid's Elements, a mathematical text book attributed to Euclid and in use from its appearance in Alexandria, Egypt around 300 BC until modern times, dealing with geometry and number theory. It has been described as the most influential text book ever written. Einstein had a copy as a child, which he treasured, later saying "If Euclid failed to kindle your youthful enthusiasm, then you were not born to be a scientific thinker." With Marcus du Sautoy Professor of Mathematics and Simonyi Professor for the Public Understanding of Science at the University of Oxford Serafina Cuomo Reader in Roman History at Birkbeck University of London And June Barrow-Green Professor of the History of Mathematics at the Open University Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the impact of the eruption of Mt Tambora, in 1815, on the Indonesian island of Sambawa. This was the largest volcanic eruption in recorded history and it had the highest death toll, devastating people living in the immediate area. Tambora has been linked with drastic weather changes in North America and Europe the following year, with frosts in June and heavy rains throughout the summer in many areas. This led to food shortages, which may have prompted westward migration in America and, in a Europe barely recovered from the Napoleonic Wars, led to widespread famine. With Clive Oppenheimer Professor of Volcanology at the University of Cambridge Jane Stabler Professor in Romantic Literature at the University of St Andrews And Lawrence Goldman Director of the Institute of Historical Research at the University of London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the neutron, one of the particles found in an atom's nucleus. Building on the work of Ernest Rutherford, the British physicist James Chadwick won the Nobel Prize for Physics for his discovery of the neutron in 1932. Neutrons play a fundamental role in the universe and their discovery was at the heart of developments in nuclear physics in the first half of the 20th century. With Val Gibson Professor of High Energy Physics at the University of Cambridge and fellow of Trinity College Andrew Harrison Chief Executive Officer of Diamond Light Source and Professor in Chemistry at the University of Edinburgh And Frank Close Professor Emeritus of Physics at the University of Oxford.

Melvyn Bragg and guests discuss the rise of the Sikh Empire at the end of the 18th Century under Ranjit Singh, pictured above, who unified most of the Sikh kingdoms following the decline of the Mughal Empire. He became Maharaja of the Punjab at Lahore in 1801, capturing Amritsar the following year. His empire flourished until 1839, after which a decade of unrest ended with the British annexation. At its peak, the Empire covered the Punjab and stretched from the Khyber Pass in the west to the edge of Tibet in the east, up to Kashmir and down to Mithankot on the Indus River. Ranjit Singh is still remembered as "The Lion of the Punjab." With Gurharpal Singh Professor in Inter-Religious Relations and Development at SOAS, University of London Chandrika Kaul Lecturer in Modern History at the University of St Andrews And Susan Stronge Senior Curator in the Asian Department of the Victoria and Albert Museum Producer: Simon Tillotson.

Agrippina the Younger was one of the most notorious and influential of the Roman empresses in the 1st century AD. She was the sister of the Emperor Caligula, a wife of the Emperor Claudius and mother of the Emperor Nero. Through careful political manoeuvres, she acquired a dominant position for herself in Rome. In 39 AD she was exiled for allegedly participating in a plot against Caligula and later it was widely thought that she killed Claudius with poison. When Nero came to the throne, he was only 16 so Agrippina took on the role of regent until he began to exert his authority. After relations between Agrippina and Nero soured, he had her murdered. With: Catharine Edwards Professor of Classics and Ancient History at Birkbeck, University of London Alice König Lecturer in Latin and Classical Studies at the University of St Andrews Matthew Nicholls Associate Professor of Classics at the University of Reading Producer: Victoria Brignell.

Melvyn Bragg and guests discuss Elizabeth Barrett Browning's epic "Aurora Leigh" which was published in 1856. It is the story of an orphan, Aurora, born in Italy to an English father and Tuscan mother, who is brought up by an aunt in rural Shropshire. She has a successful career as a poet in London and, when living in Florence, is reunited with her cousin, Romney Leigh, whose proposal she turned down a decade before. The poem was celebrated by other poets and was Elizabeth Barrett Browning's most commercially successful. Over 11,000 lines, she addressed many Victorian social issues, including reform, illegitimacy, the pressure to marry and what women must overcome to be independent, successful writers, in a world dominated by men. With Margaret Reynolds Professor of English at Queen Mary, University of London Daniel Karlin Winterstoke Professor of English Literature at the University of Bristol And Karen O'Brien Professor of English Literature at King's College London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the early years of Bedlam, the name commonly used for the London hospital of St Mary of Bethlehem outside Bishopsgate, described in 1450 by the Lord Mayor of London as a place where may "be found many men that be fallen out of their wit. And full honestly they be kept in that place; and some be restored onto their wit and health again. And some be abiding therein for ever." As Bethlem, or Bedlam, it became a tourist attraction in the 17th Century at its new site in Moorfields and, for its relatively small size, made a significant impression on public attitudes to mental illness. The illustration, above, is from the eighth and final part of Hogarth's 'A Rake's Progress' (1732-3), where Bedlam is the last stage in the decline and fall of a young spendthrift,Tom Rakewell. With Hilary Marland Professor of History at the University of Warwick Justin Champion Professor of the History of Early Modern Ideas at Royal Holloway, University of London and President of the Historical Association And Jonathan Andrews Reader in the History of Psychiatry at Newcastle University Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the Maya Civilization, developed by the Maya people, which flourished in central America from around 250 AD in great cities such as Chichen Itza and Uxmal with advances in mathematics, architecture and astronomy. Long before the Spanish Conquest in the 16th Century, major cities had been abandoned for reasons unknown, although there are many theories including overpopulation and changing climate. The hundreds of Maya sites across Belize, El Salvador, Guatemala, Honduras and Mexico raise intriguing questions about one of the world's great pre-industrial civilizations. With Elizabeth Graham Professor of Mesoamerican Archaeology at University College London Matthew Restall Edwin Erle Sparks Professor of Latin American History and Anthropology at Pennsylvania State University And Benjamin Vis Eastern ARC Research Fellow in Digital Humanities at the University of Kent Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the Vereenigde Oost-Indische Compagnie or VOC, known in English as the Dutch East India Company. The VOC dominated the spice trade between Asia and Europe for two hundred years, with the British East India Company a distant second. At its peak, the VOC had a virtual monopoly on nutmeg, mace, cloves and cinnamon, displacing the Portuguese and excluding the British, and were the only European traders allowed access to Japan. With Anne Goldgar Reader in Early Modern European History at King's College London Chris Nierstrasz Lecturer in Global History at Erasmus University, Rotterdam, formerly at the University of Warwick And Helen Paul Lecturer in Economics and Economic History at the University of Southampton Producer: Simon Tillotson.

Mary Magdalene is one of the best-known figures in the Bible and has been a frequent inspiration to artists and writers over the last 2000 years. According to the New Testament, she was at the foot of the cross when Jesus was crucified and was one of the first people to see Jesus after the resurrection. However, her identity has provoked a large amount of debate and in the Western Church she soon became conflated with two other figures mentioned in the Bible, a repentant sinner and Mary of Bethany. Texts discovered in the mid-20th century provoked controversy and raised further questions about the nature of her relations with Jesus. With: Joanne Anderson Lecturer in Art History at the Warburg Institute, School of Advanced Study, University of London Eamon Duffy Emeritus Professor of the History of Christianity at the University of Cambridge and Fellow of Magdalene College Joan Taylor Professor of Christian Origins and Second Temple Judaism at King's College London Producer: Victoria Brignell.

Melvyn Bragg and guests discuss the life and work of Robert Hooke (1635-1703) who worked for Robert Boyle and was curator of experiments at the Royal Society. The engraving of a flea, above, is taken from his Micrographia which caused a sensation when published in 1665. Sometimes remembered for his disputes with Newton, he studied the planets with telescopes and snowflakes with microscopes. He was an early proposer of a theory of evolution, discovered light diffraction with a wave theory to explain it and felt he was rarely given due credit for his discoveries. With David Wootton Anniversary Professor of History at the University of York Patricia Fara President Elect of the British Society for the History of Science And Rob Iliffe Professor of History of Science at Oxford University Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the poetry of Rumi, the Persian scholar and Sufi mystic of the 13th Century. His great poetic works are the Masnavi or "spiritual couplets" and the Divan, a collection of thousands of lyric poems. He is closely connected with four modern countries: Afghanistan, as he was born in Balkh, from which he gains the name Balkhi; Uzbekistan from his time in Samarkand as a child; Iran as he wrote in Persian; and Turkey for his work in Konya, where he spent most of his working life and where his followers established the Mevlevi Order, also known as the Whirling Dervishes. With Alan Williams British Academy Wolfson Research Professor at the University of Manchester Carole Hillenbrand Professor of Islamic History at the University of St Andrews and Professor Emerita of Edinburgh University And Lloyd Ridgeon Reader in Islamic Studies at the University of Glasgow Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the origins, development and uses of chromatography. In its basic form, it is familiar to generations of schoolchildren who put a spot of ink at the bottom of a strip of paper, dip it in water and then watch the pigments spread upwards, revealing their separate colours. Chemists in the 19th Century started to find new ways to separate mixtures and their work was taken further by Mikhail Tsvet, a Russian-Italian scientist who is often credited with inventing chromatography in 1900. The technique has become so widely used, it is now an integral part of testing the quality of air and water, the levels of drugs in athletes, in forensics and in the preparation of pharmaceuticals. With Andrea Sella Professor of Chemistry at University College London Apryll Stalcup Professor of Chemical Sciences at Dublin City University And Leon Barron Senior Lecturer in Forensic Science at King's College London.

Melvyn Bragg and guests discuss the life, times and influence of Eleanor of Aquitaine (c1122-1204) who was one of the most powerful women in Twelfth Century Europe, possibly in the entire Middle Ages. She inherited land from the Loire down to the Pyrenees, about a third of modern France. She married first the King of France, Louis VII, joining him on the Second Crusade. She became stronger still after their marriage was annulled, as her next husband, Henry Plantagenet became Henry II of England. Two of their sons, Richard and John, became kings and she ruled for them when they were abroad. By her death in her eighties, Eleanor had children and grandchildren in power across western Europe. This led to competing claims of inheritance and, for much of the next 250 years, the Plantagenet and French kings battled over Eleanor's land. With Lindy Grant Professor of Medieval History at the University of Reading Nicholas Vincent Professor of Medieval History at the University of East Anglia And Julie Barrau University Lecturer in British Medieval History at the University of Cambridge Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Thomas Paine and his pamphlet "Common Sense" which was published in Philadelphia in January 1776 and promoted the argument for American independence from Britain. Addressed to The Inhabitants of America, it sold one hundred and fifty thousand copies in the first few months and is said, proportionately, to be the best-selling book in American history. Paine had arrived from England barely a year before. He vigorously attacked monarchy generally and George the Third in particular. He argued the colonies should abandon all hope of resolving their dispute with Britain and declare independence immediately. Many Americans were scandalised. More were inspired and, for Paine's vision of America's independent future, he has been called a Founding Father of the United States. With Kathleen Burk Professor Emerita of Modern and Contemporary History at University College London Nicholas Guyatt University Lecturer in American History at the University of Cambridge And Peter Thompson Associate Professor of American History at the University of Oxford and Fellow of St Cross College Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the planet Saturn with its rings of ice and rock and over 60 moons. In 1610, Galileo used an early telescope to observe Saturn, one of the brightest points in the night sky, but could not make sense of what he saw: perhaps two large moons on either side. When he looked a few years later, those supposed moons had disappeared. It was another forty years before Dutch scientist Christiaan Huygens solved the mystery, realizing the moons were really a system of rings. Successive astronomers added more detail, with the greatest leaps forward in the last forty years. The Pioneer 11 spacecraft and two Voyager missions have flown by, sending back the first close-up images, and Cassini is still there, in orbit, confirming Saturn, with its rings and many moons, as one of the most intriguing and beautiful planets in our Solar System. With Carolin Crawford Public Astronomer at the Institute of Astronomy and Fellow of Emmanuel College, University of Cambridge Michele Dougherty Professor of Space Physics at Imperial College London And Andrew Coates Deputy Director in charge of the Solar System at the Mullard Space Science Laboratory at UCL.

Melvyn Bragg and guests discuss Tristan and Iseult, one of the most popular stories of the Middle Ages. From roots in Celtic myth, it passed into written form in Britain a century after the Norman Conquest and almost immediately spread throughout northern Europe. It tells of a Cornish knight and an Irish queen, Tristan and Iseult, who accidentally drink a love potion, at the same time, on the same boat, travelling to Cornwall. She is due to marry Tristan's king, Mark. Tristan and Iseult seemed ideally matched and their love was heroic, but could that excuse their adultery, in the minds of medieval listeners, particularly when the Church was so clear they were wrong? With Laura Ashe Associate Professor of English at Worcester College, University of Oxford Juliette Wood Associate Lecturer in the School of Welsh at Cardiff University And Mark Chinca Reader in Medieval German Literature at the University of Cambridge Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the eminent 19th-century scientist Michael Faraday. Born into a poor working-class family, he received little formal schooling but became interested in science while working as a bookbinder's apprentice. He is celebrated today for carrying out pioneering research into the relationship between electricity and magnetism. Faraday showed that if a wire was turned in the presence of a magnet or a magnet was turned in relation to a wire, an electric current was generated. This ground-breaking discovery led to the development of the electric generator and ultimately to modern power stations. During his life he became the most famous scientist in Britain and he played a key role in founding the Royal Institution's Christmas lectures which continue today. With: Geoffrey Cantor Professor Emeritus of the History of Science at the University of Leeds Laura Herz Professor of Physics at the University of Oxford Frank James Professor of the History of Science at the Royal Institution Producer: Victoria Brignell.

Melvyn Bragg and his guests discuss the evolution and role of Circadian Rhythms, the so-called body clock that influences an organism's daily cycle of physical, behavioural and mental changes. The rhythms are generated within organisms and also in response to external stimuli, mainly light and darkness. They are found throughout the living world, from bacteria to plants, fungi to animals and, in humans, are noticed most clearly in sleep patterns. With Russell Foster Professor of Circadian Neuroscience at the University of Oxford Debra Skene Professor of Neuroendocrinology at the University of Surrey And Steve Jones Emeritus Professor of Genetics at University College London.

Melvyn Bragg and guests discuss the origins and rise of Legalism in China, from the start of the Warring States Period (c475 - 221 BC) to the time of The First Emperor Qin Shi Huang (pictured), down to Chairman Mao and the present day. Advanced by the Qin statesman Shang Yang and later blended together by Han Fei, the three main aspects of Legalism were the firm implementation of laws, use of techniques such as responsibility and inscrutability, and taking advantage of the ruler's position. The Han dynasty that replaced the Qin discredited this philosophy for its apparent authoritarianism, but its influence continued, re-emerging throughout Chinese history. With Frances Wood Former Curator of the Chinese Collections at the British Library Hilde de Weerdt Professor of Chinese History at Leiden University And Roel Sterckx Joseph Needham Professor of Chinese History at the University of Cambridge. Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the scientific advances made in the three voyages of Captain James Cook, from 1768 to 1779. Cook's voyages astonished Europeans, bringing back detailed knowledge of the Pacific and its people, from the Antarctic to the Bering Straits. This topic is one of more than a thousand different ideas suggested by listeners in October and came from Alysoun Hodges in the UK, Fiachra O'Brolchain in Ireland, Mhairi Mackay in New Zealand, Enzo Vozzo in Australia, Jeff Radford in British Columbia and Mark Green in Alaska. With Simon Schaffer Professor of the History of Science at the University of Cambridge Rebekah Higgitt Lecturer in the History of Science at the University of Kent And Sophie Forgan Retired Principle Lecturer at the University of Teesside Chairman of Trustees of the Captain Cook Museum, Whitby Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the outbreak of witch trials in Massachusetts in 1692-3, centred on Salem, which led to the execution of twenty people, with more dying in prison before or after trial. Some were men, including Giles Corey who died after being pressed with heavy rocks, but the majority were women. At its peak, around 150 people were suspected of witchcraft, including the wife of the governor who had established the trials. Many of the claims of witchcraft arose from personal rivalries in an area known for unrest, but were examined and upheld by the courts at a time of mass hysteria, belief in the devil, fear of attack by Native Americans and religious divisions. With Susan Castillo-Street Harriet Beecher Stowe Professor Emerita of American Studies at King's College London Simon Middleton Senior Lecturer in American History at the University of Sheffield And Marion Gibson Professor of Renaissance and Magical Literatures at Exeter University, Penryn Campus. Producer: Simon Tillotson.

"Emma Woodhouse, handsome, clever, and rich, with a comfortable home and happy disposition, seemed to unite some of the best blessings of existence; and had lived nearly twenty-one years in the world with very little to distress or vex her." So begins Emma by Jane Austen, describing her leading character who, she said, was "a heroine whom no-one but myself will much like." Melvyn Bragg and guests discuss this, one of Austen's most popular novels and arguably her masterpiece, a brilliantly sparkling comedy of manners published in December 1815 by John Murray, the last to be published in Austen's lifetime. This followed Sense and Sensibility (1811), Pride and Prejudice (1813) and Mansfield Park (1814), with her brother Henry handling publication of Northanger Abbey and Persuasion (1817). With Janet Todd Professor Emerita of Literature, University of Aberdeen and Honorary Fellow of Newnham College, Cambridge John Mullan Professor of English at University College, London And Emma Clery Professor of English at the University of Southampton. Producer: Simon Tillotson.

Melvyn Bragg and guests discuss The Battle of Lepanto, 1571, the last great sea battle between galleys, in which the Catholic fleet of the Holy League of principally Venice, Spain, the Papal States, Malta, Genoa, and Savoy defeated the Ottoman forces of Selim II. When much of Europe was divided over the Reformation, this was the first major victory of a Christian force over a Turkish fleet. The battle followed the Ottoman invasion of Venetian Cyprus and decades in which the Venetians had been trying to stop the broader westward expansion of the Ottomans into the Mediterranean. The outcome had a great impact on morale in Europe and Pope Pius V established a feast day of Our Lady of Victory. Some historians call it the most significant sea battle since Actium (31 BC). However, the Ottomans viewed the loss as less significant than their victory in Cyprus and, within two years, the Holy League had broken up. With Diarmaid MacCulloch Professor of the History of the Church at the University of Oxford Kate Fleet Director of the Skilliter Centre for Ottoman Studies and Fellow of Newnham College, University of Cambridge And Noel Malcolm A Senior Research Fellow in History at All Soul's College, University of Oxford Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the problem of P versus NP, which has a bearing on online security. There is a $1,000,000 prize on offer from the Clay Mathematical Institute for the first person to come up with a complete solution. At its heart is the question "are there problems for which the answers can be checked by computers, but not found in a reasonable time?" If the answer to that is yes, then P does not equal NP. However, if all answers can be found easily as well as checked, if only we knew how, then P equals NP. The area has intrigued mathematicians and computer scientists since Alan Turing, in 1936, found that it's impossible to decide in general whether an algorithm will run forever on some problems. Resting on P versus NP is the security of all online transactions which are currently encrypted: if it transpires that P=NP, if answers could be found as easily as checked, computers could crack passwords in moments. With Colva Roney-Dougal Reader in Pure Mathematics at the University of St Andrews Timothy Gowers Royal Society Research Professor in Mathematics at the University of Cambridge And Leslie Ann Goldberg Professor of Computer Science and Fellow of St Edmund Hall, University of Oxford Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the Empire of Mali which flourished from 1200 to 1600 and was famous in the wider world for the wealth of rulers such as Mansa Musa. Mali was the largest empire in west Africa and for almost 400 years controlled the flow of gold from mines in the south up to the Mediterranean coast and across to the Middle East. These gold mines were the richest known deposits in the 14th Century and produced around half of the world's gold. When Mansa Musa journeyed to Cairo in 1324 as part of his Hajj, he distributed so much gold that its value depreciated by over 10%. Some of the mosques he built on his return survive, albeit rebuilt, such as the UNESCO World Heritage Site of the Great Mosque of Djenne. With Amira Bennison Reader in the History and Culture of the Maghrib at the University of Cambridge Marie Rodet Senior Lecturer in the History of Africa at SOAS And Kevin MacDonald Professor of African Archaeology Chair of the African Studies Programme at University College, London Producer: Simon Tillotson.

Melvyn Bragg and guests discuss Simone de Beauvoir. "One is not born, but rather becomes, a woman," she wrote in her best known and most influential work, The Second Sex, her exploration of what it means to be a woman in a world defined by men. Published in 1949, it was an immediate success with the thousands of women who bought it. Many male critics felt men came out of it rather badly. Beauvoir was born in 1908 to a high bourgeois family and it was perhaps her good fortune that her father lost his money when she was a girl. With no dowry, she pursued her education in Paris to get work and in a key exam to allow her to teach philosophy, came second only to Jean Paul Sartre. He was retaking. They became lovers and, for the rest of their lives together, intellectual sparring partners. Sartre concentrated on existentialist philosophy; Beauvoir explored that, and existentialist ethics, plus the novel and, increasingly in the decades up to her death in 1986, the situation of women in the world. With Christina Howells Professor of French and Fellow of Wadham College at the University of Oxford Margaret Atack Professor of French at the University of Leeds And Ursula Tidd Professor of Modern French Literature and Thought at the University of Manchester Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the life and work of Hans Holbein the Younger (1497-1543) during his two extended stays in England, when he worked at the Tudor Court and became the King's painter. Holbein created some of the most significant portraits of his age, including an image of Henry VIII, looking straight at the viewer, hands on hips, that has dominated perceptions of him since. The original at Whitehall Palace was said to make visitors tremble at its majesty. Holbein was later sent to Europe to paint the women who might be Henry's fourth wife; his depiction of Anne of Cleves was enough to encourage Henry to marry her, a decision Henry quickly regretted and for which Thomas Cromwell, her supporter, was executed. His paintings still shape the way we see those in and around the Tudor Court, including Cromwell, Thomas More, the infant Prince Edward (of which there is a detail, above), The Ambassadors and, of course, Henry the Eighth himself. With Susan Foister Curator of Early Netherlandish, German and British Painting at the National Gallery John Guy A fellow of Clare College, University of Cambridge And Maria Hayward Professor of Early Modern History at the University of Southampton Producer: Simon Tillotson.

Alexander the Great is one of the most celebrated military commanders in history. Born into the Macedonian royal family in 356 BC, he gained control of Greece and went on to conquer the Persian Empire, defeating its powerful king, Darius III. At its peak, Alexander's empire covered modern Turkey, Syria, Egypt, Iran, Iraq, Afghanistan, Pakistan and part of India. As a result, Greek culture and language was spread into regions it had not penetrated before, and he is also remembered for founding a number of cities. Over the last 2,000 years, the legend of Alexander has grown and he has influenced numerous generals and politicians. With: Paul Cartledge Emeritus Professor of Greek Culture and AG Leventis Senior Research Fellow at Clare College, University of Cambridge Diana Spencer Professor of Classics at the University of Birmingham Rachel Mairs Lecturer in Classics at the University of Reading Producer: Victoria Brignell.

Melvyn Bragg and guests discuss the rise of the idea of perpetual motion and its decline, in the 19th Century, with the Laws of Thermodynamics. For hundreds of years, some of the greatest names in science thought there might be machines that could power themselves endlessly. Leonardo Da Vinci tested the idea of a constantly-spinning wheel and Robert Boyle tried to recirculate water from a draining flask. Gottfried Leibniz supported a friend, Orffyreus, who claimed he had built an ever-rotating wheel. An increasing number of scientists voiced their doubts about perpetual motion, from the time of Galileo, but none could prove it was impossible. For scientists, the designs were a way of exploring the laws of nature. Others claimed their inventions actually worked, and promised a limitless supply of energy. It was not until the 19th Century that the picture became clearer, with the experiments of James Joule and Robert Mayer on the links between heat and work, and the establishment of the First and Second Laws of Thermodynamics. With Ruth Gregory Professor of Mathematics and Physics at Durham University Frank Close Professor Emeritus of Physics at the University of Oxford and Steven Bramwell Professor of Physics and former Professor of Chemistry at University College London Producer: Simon Tillotson.

Born near Mexico City in 1907, Frida Kahlo is considered one of Mexico's greatest artists. She took up painting after a bus accident left her severely injured, was a Communist, married Diego Rivera, a celebrated muralist, became friends with Trotsky and developed an iconic series of self-portraits. Her work brings together elements such as surrealism, pop culture, Aztec and Indian mythology and commentary on Mexican culture. In 1938, artist and poet Andre Breton organised an exhibition of her work in New York, writing in the catalogue, "The Art of Frida Kahlo is a ribbon around a bomb." She was not as widely appreciated during her lifetime as she has since become, but is now one of the most recognised artists of the 20th century. With Patience Schell Chair in Hispanic Studies at the University of Aberdeen Valerie Fraser Emeritus Professor of Latin American Art at the University of Essex And Alan Knight Emeritus Professor of the History of Latin America at the University of Oxford Producer: Simon Tillotson.

Frederick the Great ruled Prussia from 1740 until his death in 1786. Born in 1712, he increased the power of the state, he made Prussia the leading military power in Europe and his bold campaigns had great implications for the European political landscape. An absolute monarch in the age of enlightenment, he was a prolific writer, attracted figures such as Voltaire to his court, fostered education and put Berlin firmly on the cultural map. He was much admired by Napoleon and was often romanticised by German historians, becoming a hero for many in united Germany in the 19th and 20th centuries. Others, however, vilified him for aspects such as his militarism and the partition of Poland. With Tim Blanning Emeritus Professor of Modern European History at the University of Cambridge Katrin Kohl Professor of German Literature at the University of Oxford and a Fellow of Jesus College And Thomas Biskup Lecturer in Early Modern History at the University of Hull Producer: Simon Tillotson.

In 1977, scientists in the submersible "Alvin" were exploring the deep ocean bed off the Galapagos Islands. In the dark, they discovered hydrothermal vents, like chimneys, from which superheated water flowed. Around the vents there was an extraordinary variety of life, feeding on microbes which were thriving in the acidity and extreme temperature of the vents. While it was already known that some microbes are extremophiles, thriving in extreme conditions, such as the springs and geysers of Yellowstone Park (pictured), that had not prepared scientists for what they now found. Since the "Alvin" discovery, the increased study of extremophile microbes has revealed much about what is and is not needed to sustain life on Earth and given rise to new theories about how and where life began. It has also suggested forms and places in which life might be found elsewhere in the Universe. With Monica Grady Professor of Planetary and Space Sciences at the Open University Ian Crawford Professor of Planetary Science and Astrobiology at Birkbeck University of London And Nick Lane Reader in Evolutionary Biochemistry at University College London Producer: Simon Tillotson.

The story of Jane Eyre is one of the best-known in English fiction. Jane is the orphan who survives a miserable early life, first with her aunt at Gateshead Hall and then at Lowood School. She leaves the school for Thornfield Hall, to become governess to the French ward of Mr Rochester. She and Rochester fall in love but, at their wedding, it is revealed he is married already and his wife, insane, is kept in Thornfield's attic. When Jane Eyre was published in 1847, it was a great success and brought fame to Charlotte Bronte. Combined with Gothic mystery and horror, the book explores many themes, including the treatment of children, relations between men and women, religious faith and hypocrisy, individuality, morality, equality and the nature of true love. With Dinah Birch Professor of English Literature and Pro-Vice-Chancellor for Research at the University of Liverpool Karen O'Brien Vice Principal and Professor of English Literature at King's College London And Sara Lyons Lecturer in Victorian Literature at the University of Kent Producer: Simon Tillotson.

A moral theory that emphasises ends over means, Utilitarianism holds that a good act is one that increases pleasure in the world and decreases pain. The tradition flourished in the eighteenth and nineteenth centuries with Jeremy Bentham and John Stuart Mill, and has antecedents in ancient philosophy. According to Bentham, happiness is the means for assessing the utility of an act, declaring "it is the greatest happiness of the greatest number that is the measure of right and wrong." Mill and others went on to refine and challenge Bentham's views and to defend them from critics such as Thomas Carlyle, who termed Utilitarianism a "doctrine worthy only of swine." With Melissa Lane The Class of 1943 Professor of Politics at Princeton University Janet Radcliffe Richards Professor of Practical Philosophy at the University of Oxford and Brad Hooker A Professor of Philosophy at the University of Reading Producer: Simon Tillotson.

In the Middle Ages, Prester John was seen as the great hope for Crusaders struggling to hold on to, then regain, Jerusalem. He was thought to rule a lost Christian kingdom somewhere in the East and was ready to attack Muslim opponents with his enormous armies. There was apparent proof of Prester John's existence, in letters purportedly from him and in stories from travelers who claimed they had met, if not him, then people who had news of him. Most pointed to a home in the earthly paradise in the Indies, outside Eden, with fantastical animals and unimaginable riches. Later, Portuguese explorers thought they had found him in Ethiopia, despite the mystified denials of people there. Melvyn Bragg asks why the legend was so strongly believed for so long, and what facts helped sustain the myths. With Marianne O'Doherty Associate Professor in English at the University of Southampton Martin Palmer Director of the International Consultancy on Religion, Education, and Culture And Amanda Power Senior Lecturer in Medieval History at the University of Sheffield. Producer: Simon Tillotson.

While glass items have been made for at least 5,000 years, scientists are yet to explain, conclusively, what happens when the substance it's made from moves from a molten state to its hard, transparent phase. It is said to be one of the great unsolved problems in physics. While apparently solid, the glass retains certain properties of a liquid. At times, ways of making glass have been highly confidential; in Venice in the Middle Ages, disclosure of manufacturing techniques was a capital offence. Despite the complexity and mystery of the science of glass, glass technology has continued to advance from sheet glass to crystal glass, optical glass and prisms, to float glasses, chemical glassware, fibre optics and metal glasses. With: Dame Athene Donald Professor of Experimental Physics at the University of Cambridge and Master of Churchill College, Cambridge Jim Bennett Former Director of the Museum of the History of Science at the University of Oxford and Keeper Emeritus at the Science Museum Paul McMillan Professor of Chemistry at University College London Producer: Simon Tillotson.

It is said that, in Britain from the 18th Century, copies of Josephus' works were as widespread and as well read as The Bible. Christians valued "The Antiquities of the Jews" in particular, for the retelling of parts of the Old Testament and apparently corroborating the historical existence of Jesus. Born Joseph son of Matthias, in Jerusalem, in 37AD, he fought the Romans in Galilee in the First Jewish-Roman War. He was captured by Vespasian's troops and became a Roman citizen, later describing the siege and fall of Jerusalem. His actions and writings made him a controversial figure, from his lifetime to the present day. With Tessa Rajak Professor Emeritus of Ancient History, University of Reading Philip Alexander Professor Emeritus of Jewish Studies, University of Manchester And Martin Goodman Professor of Jewish Studies, University of Oxford and President of the Oxford Centre for Hebrew and Jewish Studies Producer: Simon Tillotson.

Melvyn Bragg and guests discuss the Cotton Famine in Lancashire from 1861-65. The Famine followed the blockade of Confederate Southern ports during the American Civil War which stopped the flow of cotton into mills in Britain and Europe. Reports at the time told of starvation, mass unemployment and migration. Abraham Lincoln wrote, "I know and deeply deplore the sufferings which the working-men of Manchester, and in all Europe, are called to endure in this crisis." While the full cause and extent of the Famine in Lancashire are disputed, the consequences of this and the cotton blockade were far reaching.WithLawrence Goldman Director of the Institute of Historical Research at the University of LondonEmma Griffin Professor of History at the University of East AngliaAndDavid Brown Senior Lecturer in American Studies at University of ManchesterProducer: Simon Tillotson.

Rabindranath Tagore was the first non-European to win a Nobel Prize for Literature. He has been called one of the outstanding thinkers of the 20th century and the greatest poet India has ever produced. His Nobel followed publication of Gitanjali, his English version of some of his Bengali poems. WB Yeats and Ezra Pound were great supporters. Tagore was born in Calcutta in 1861 and educated partly in Britain; King George V knighted him, but Tagore renounced this in 1919 following the Amritsar Massacre. A key figure in Indian nationalism, Tagore became a friend of Gandhi, offering criticism as well as support. A polymath and progressive, Tagore painted, wrote plays, novels, short stories and many songs. The national anthems of India and Bangladesh are based on his poems. WithChandrika Kaul Lecturer in Modern History at the University of St AndrewsBashabi Fraser Professor of English Literature and Creative Writing at Edinburgh Napier UniversityAndJohn Stevens Leverhulme Postdoctoral Fellow at SOAS, University of LondonProducer: Simon Tillotson.

Melvyn Bragg and his guests discuss the Earth's Core. The inner core is an extremely dense, solid ball of iron and nickel, the size of the Moon, while the outer core is a flowing liquid, the size of Mars. Thanks to the magnetic fields produced within the core, life on Earth is possible. The magnetosphere protects the Earth from much of the Sun's radiation and the flow of particles which would otherwise strip away the atmosphere. The precise structure of the core and its properties have been fascinating scientists from the Renaissance. Recent seismographs show the picture is even more complex than we might have imagined, with suggestions that the core is spinning at a different speed and on a different axis from the surface.WithStephen Blundell Professor of Physics and Fellow of Mansfield College at the University of OxfordArwen Deuss Associate Professor in Seismology at Utrecht UniversityandSimon Redfern Professor of Mineral Physics at the University of CambridgeProducer: Simon Tillotson.

Melvyn Bragg and his guests discuss the life and work of the 18th-century novelist, playwright and diarist Fanny Burney, also known as Madame D'Arblay and Frances Burney. Her first novel, Evelina, was published anonymously and caused a sensation, attracting the admiration of many eminent contemporaries. In an era when very few women published their work she achieved extraordinary success, and her admirers included Dr Johnson and Edmund Burke; later Virginia Woolf called her 'the mother of English fiction'.With Nicole Pohl Reader in English Literature at Oxford Brookes UniversityJudith Hawley Professor of Eighteenth-Century Literature at Royal Holloway, University of LondonandJohn Mullan Professor of English at University College London. Producer: Simon Tillotson.

Melvyn Bragg and his guests discuss the life of Matteo Ricci, a Jesuit priest who in the 16th century led a Christian mission to China. An accomplished scholar, Ricci travelled extensively and came into contact with senior officials of the Ming Dynasty administration. His story is one of the most important encounters between Renaissance Europe and a China which was still virtually closed to outsiders.With Mary Laven Reader in Early Modern History at the University of CambridgeCraig Clunas Professor of the History of Art at the University of OxfordandAnne Gerritsen Reader in History at the University of Warwick Producer: Simon Tillotson.

Melvyn Bragg and his guests discuss the Greek poet Sappho. Born in the late seventh century BC, Sappho spent much of her life on the island of Lesbos. In antiquity she was famed as one of the greatest lyric poets, but owing to a series of accidents the bulk of her work was lost to posterity. The fragments that do survive, however, give a tantalising glimpse of a unique voice of Greek literature. Her work has lived on in other languages, too, translated by such major poets as Ovid, Christina Rossetti and Baudelaire.WithEdith Hall Professor of Classics at King's College, LondonMargaret Reynolds Professor of English at Queen Mary, University of Londonand Dirk Obbink Professor of Papyrology and Greek Literature at the University of Oxford Fellow and tutor at Christ Church, OxfordProducer: Simon Tillotson.

Melvyn Bragg and his guests discuss the California Gold Rush. In 1849 the recent discovery of gold at Coloma, near Sacramento in California, led to a massive influx of prospectors seeking to make their fortunes. Within a couple of years the tiny settlement of San Francisco had become a major city, with tens of thousands of immigrants, the so-called Forty-Niners, arriving by boat and over land. The gold rush transformed the west coast of America and its economy, but also uprooted local populations of Native Americans and made irreversible changes to natural habitats.With:Kathleen Burk Professor of Modern and Contemporary History at University College LondonJacqueline Fear-Segal Reader in American History and Culture at the University of East AngliaFrank Cogliano Professor of American History at the University of Edinburgh.

Melvyn Bragg and his guests discuss the scientific achievements of the Curie family. In 1903 Marie and Pierre Curie shared a Nobel Prize in Physics with Henri Becquerel for their work on radioactivity, a term which Marie coined. Marie went on to win a Nobel in Chemistry eight years later; remarkably, her daughter Irène Joliot-Curie would later share a Nobel with her husband Frédéric Joliot-Curie for their discovery that it was possible to create radioactive materials in the laboratory. The work of the Curies added immensely to our knowledge of fundamental physics and paved the way for modern treatments for cancer and other illnesses.With:Patricia Fara Senior Tutor of Clare College, University of CambridgeRobert Fox Emeritus Professor of the History of Science at the University of OxfordSteven T Bramwell Professor of Physics and former Professor of Chemistry at University College LondonProducer: Simon Tillotson.

Melvyn Bragg and his guests discuss the life and work of Al-Ghazali, a major philosopher and theologian of the late 11th century. Born in Persia, he was one of the most prominent intellectuals of his age, working in such centres of learning as Baghdad, Damascus and Jerusalem. He is now seen as a key figure in the development of Islamic thought, not just refining the theology of Islam but also building on the existing philosophical tradition inherited from the ancient Greeks.With:Peter Adamson Professor of Late Ancient and Arabic Philosophy at the LMU in MunichCarole Hillenbrand Professor of Islamic History at Edinburgh and St Andrews UniversitiesRobert Gleave Professor of Arabic Studies at the University of ExeterProducer: Victoria Brignell.

Melvyn Bragg and his guests discuss dark matter, the mysterious and invisible substance which is believed to make up most of the Universe. In 1932 the Dutch astronomer Jan Oort noticed that the speed at which galaxies moved was at odds with the amount of material they appeared to contain. He hypothesized that much of this 'missing' matter was simply invisible to telescopes. Today astronomers and particle physicists are still fascinated by the search for dark matter and the question of what it is.With Carolin Crawford Public Astronomer at the Institute of Astronomy, University of Cambridge and Gresham Professor of AstronomyCarlos Frenk Ogden Professor of Fundamental Physics and Director of the Institute for Computational Cosmology at the University of DurhamAnne Green Reader in Physics at the University of NottinghamProducer: Simon Tillotson.

Melvyn Bragg and his guests discuss the epic poem Beowulf, one of the masterpieces of Anglo-Saxon literature. Composed in the early Middle Ages by an anonymous poet, the work tells the story of a Scandinavian hero whose feats include battles with the fearsome monster Grendel and a fire-breathing dragon. It survives in a single manuscript dating from around 1000 AD, and was almost completely unknown until its rediscovery in the nineteenth century. Since then it has been translated into modern English by writers including William Morris, JRR Tolkien and Seamus Heaney, and inspired poems, novels and films.With:Laura Ashe Associate Professor in English at the University of Oxford and Fellow of Worcester CollegeClare Lees Professor of Medieval English Literature and History of the Language at King's College LondonAndy Orchard Rawlinson and Bosworth Professor of Anglo-Saxon at the University of OxfordProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the history and significance of eunuchs, castrated men who were a common feature of many civilisations for at least three thousand years. Eunuchs were typically employed as servants in royal households in the ancient Middle East, China and classical antiquity. In some civilisations they were used as administrators or senior military commanders, sometimes achieving high office. The tradition lingered until surprisingly recently, with castrated singers remaining a feature of Vatican choirs until the nineteenth century, while the last Chinese eunuch of the imperial court died in 1996.With:Karen Radner Professor of Ancient Near Eastern History at University College LondonShaun Tougher Reader in Ancient History at Cardiff UniversityMichael Hoeckelmann British Academy Postdoctoral Fellow in the Department of History at King's College LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Adam Smith's celebrated economic treatise The Wealth of Nations. Smith was one of Scotland's greatest thinkers, a moral philosopher and pioneer of economic theory whose 1776 masterpiece has come to define classical economics. Based on his careful consideration of the transformation wrought on the British economy by the Industrial Revolution, and how it contrasted with marketplaces elsewhere in the world, the book outlined a theory of wealth and how it is accumulated that has arguably had more influence on economic theory than any other.With:Richard Whatmore Professor of Modern History and Director of the Institute of Intellectual History at the University of St AndrewsDonald Winch Emeritus Professor of Intellectual History at the University of SussexHelen Paul Lecturer in Economics and Economic History at the University of SouthamptonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the photon, one of the most enigmatic objects in the Universe. Generations of scientists have struggled to understand the nature of light. In the late nineteenth century it seemed clear that light was an electromagnetic wave. But the work of physicists including Planck and Einstein shed doubt on this theory. Today scientists accept that light can behave both as a wave and a particle, the latter known as the photon. Understanding light in terms of photons has enabled the development of some of the most important technology of the last fifty years.With:Frank Close Professor Emeritus of Physics at the University of OxfordWendy Flavell Professor of Surface Physics at the University of ManchesterSusan Cartwright Senior Lecturer in Physics and Astronomy at the University of Sheffield.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Indian Emperor Ashoka. Active in the 3rd century BC, Ashoka conquered almost all of the landmass covered by modern-day India, creating the largest empire South Asia had ever known. After his campaign of conquest he converted to Buddhism, and spread the religion throughout his domain. His edicts were inscribed on the sides of an extraordinary collection of stone pillars spread far and wide across his empire, many of which survive today. Our knowledge of ancient India and its chronology, and how this aligns with the history of Europe, is largely dependent on this important set of inscriptions, which were deciphered only in the nineteenth century.With:Jessica Frazier Lecturer in Religious Studies at the University of Kent and a Research Fellow at the Oxford Centre for Hindu StudiesNaomi Appleton Chancellor's Fellow in Religious Studies at the University of EdinburghRichard Gombrich Founder and Academic Director of the Oxford Centre for Buddhist Studies and Emeritus Professor of Sanskrit at the University of OxfordProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the ancient Greek historian Thucydides. In the fifth century BC Thucydides wrote The History of the Peloponnesian War, an account of a conflict in which he had himself taken part. This work is now seen as one of the first great masterpieces of history writing, a book which influenced writers for centuries afterwards. Thucydides was arguably the first historian to make a conscious attempt to be objective, bringing a rational and impartial approach to his scholarship. Today his work is still widely studied at military colleges and in the field of international relations for the insight it brings to bear on complex political situations.With:Paul Cartledge Emeritus Professor of Greek Culture and AG Leventis Senior Research Fellow at Clare College, CambridgeKatherine Harloe Associate Professor in Classics and Intellectual History at the University of ReadingNeville Morley Professor of Ancient History at the University of BristolProducer: Thomas Morris.

Melvyn Bragg and guests discuss phenomenology, a style of philosophy developed by the German thinker Edmund Husserl in the first decades of the 20th century. Husserl's initial insights underwent a radical transformation in the work of his student Martin Heidegger, and played a key role in the development of French philosophy at the hands of writers like Emmanuel Levinas, Jean-Paul Sartre, Simone de Beauvoir and Maurice Merleau-Ponty.Phenomenology has been a remarkably adaptable approach to philosophy. It has given its proponents a platform to expose and critique the basic assumptions of past philosophy, and to talk about everything from the foundations of geometry to the difference between fear and anxiety. It has also been instrumental in getting philosophy out of the seminar room and making it relevant to the lives people actually lead. GUESTSSimon Glendinning, Professor of European Philosophy in the European Institute at the London School of Economics Joanna Hodge, Professor of Philosophy at Manchester Metropolitan University Stephen Mulhall, Professor of Philosophy and Tutor at New College at the University of Oxford Producer: Luke Mulhall.

Melvyn Bragg and guests discuss Pieter Bruegel the Elder's painting of 1559, 'The Fight Between Carnival And Lent'. Created in Antwerp at a time of religious tension between Catholics and Protestants, the painting is rich in detail and seems ripe for interpretation. But Bruegel is notoriously difficult to interpret. His art seems to reject the preoccupations of the Italian Renaissance, drawing instead on techniques associated with the new technology of the 16th century, print. Was Bruegel using his art to comment on the controversies of his day? If so, what comment was he making? CONTRIBUTORSLouise Milne, Lecturer in Visual Culture in the School of Art at the University of Edinburgh and Edinburgh Napier UniversityJeanne Nuechterlein, Senior Lecturer in the Department of History of Art, University of YorkMiri Rubin, Professor of Medieval and Early Modern History and Head of the School of History at Queen Mary, University of LondonProducer: Luke Mulhall.

Melvyn Bragg and his guests discuss the philosophy of truth. Pontius Pilate famously asked: what is truth? In the twentieth century, the nature of truth became a subject of particular interest to philosophers, but they preferred to ask a slightly different question: what does it mean to say of any particular statement that it is true? What is the difference between these two questions, and how useful is the second of them?With:Simon Blackburn Fellow of Trinity College, University of Cambridge, and Professor of Philosophy at the New College of the HumanitiesJennifer Hornsby Professor of Philosophy at Birkbeck, University of LondonCrispin Wright Regius Professor of Logic at the University of Aberdeen, and Professor of Philosophy at New York UniversityProducer: Victoria Brignell and Luke Mulhall.

Melvyn Bragg and guests discuss Behavioural Ecology, the scientific study of animal behaviour.What factors influence where and what an animal chooses to eat? Why do some animals mate for life whilst others are promiscuous? Behavioural ecologists approach questions like these using Darwin's theory of natural selection, along with ideas drawn from game theory and the economics of consumer choice.Scientists had always been interested in why animals behave as they do, but before behavioural ecology this area of zoology never got much beyond a collection of interesting anecdotes. Behavioural ecology gave researchers techniques for constructing rigorous mathematical models of how animals act under different circumstances, and for predicting how they will react if circumstances change. Behavioural ecology emerged as a branch of zoology in the second half of the 20th century and proponents say it revolutionized our understanding of animals in their environments.GUESTSSteve Jones, Emeritus Professor of Genetics at University College LondonRebecca Kilner, Professor of Evolutionary Biology at the University of CambridgeJohn Krebs, Principal of Jesus College at the University of OxfordProducer: Luke Mulhall.

Melvyn Bragg and guests discuss Zen. It's often thought of as a form of Buddhism that emphasises the practice of meditation over any particular set of beliefs. In fact Zen belongs to a particular intellectual tradition within Buddhism that took root in China in the 6th century AD. It spread to Japan in the early Middle Ages, where Zen practitioners set up religious institutions like temples, monasteries and universities that remain important today.GUESTSTim Barrett, Emeritus Professor in the Department of the Study of Religions at SOAS, University of LondonLucia Dolce, Numata Reader in Japanese Buddhism at SOAS, University of LondonEric Greene, Lecturer in East Asian Religions at the University of BristolProducer: Luke Mulhall.

Melvyn Bragg and guests discuss Franz Kafka's novel of power and alienation 'The Trial', in which readers follow the protagonist Joseph K into a bizarre, nightmarish world in which he stands accused of an unknown crime; courts of interrogation convene in obscure tenement buildings; and there seems to be no escape from a crushing, oppressive bureaucracy.Kafka was a German-speaking Jew who lived in the Czech city of Prague, during the turbulent years which followed the First World War. He spent his days working as a lawyer for an insurance company, but by night he wrote stories and novels considered some of the high points of twentieth century literature. His explorations of power and alienation have chimed with existentialists, Marxists, psychoanalysts, postmodernists - and Radio 4 listeners, who suggested this as our topic for listener week on In Our Time.GUESTSElizabeth Boa, Professor Emerita of German at the University of Nottingham Steve Connor, Grace 2 Professor of English at the University of Cambridge Ritchie Robertson, Taylor Professor of the German Language and Literature at the University of OxfordProducer: Luke Mulhall.

Melvyn Bragg and guests discuss Aesop. According to some accounts, Aesop was a strikingly ugly slave who was dumb until granted the power of speech by the goddess Isis. In stories of his life he's often found outwitting his masters using clever wordplay, but he's best known today as the supposed author of a series of fables that are some of the most enduringly popular works of Ancient Greek literature. Some modern scholars question whether he existed at all, but the body of work that has come down to us under his name gives us a rare glimpse of the popular culture of the Ancient World.WITHPavlos Avlamis, Junior Research Fellow in Classics at Trinity College at the University of OxfordSimon Goldhill, Professor of Greek Literature and Culture at the University of CambridgeLucy Grig, Senior Lecturer in Classics at the University of EdinburghProducer: Luke Mulhall.

Melvyn Bragg and guests discuss Isambard Kingdom Brunel, the Victorian engineer responsible for bridges, tunnels and railways still in use today more than 150 years after they were built. Brunel represented the cutting edge of technological innovation in Victorian Britain, and his life gives us a window onto the social changes that accompanied the Industrial Revolution. Yet his work was not always successful, and his innovative approach to engineering projects was often greeted with suspicion from investors. Guests:Julia Elton, former President of the Newcomen Society for the History of Engineering and TechnologyBen Marsden, Senior Lecturer in the School of Divinity, History and Philosophy at the University of AberdeenCrosbie Smith, Professor of the History of Science at the University of KentProducer: Luke Mulhall.

Melvyn Bragg and guests discuss the Egyptian pharaoh Hatshepsut, whose name means 'foremost of noble ladies'. She ruled Egypt from about 1479 - 1458 BC and some scholars argue that she was one of the most successful and influential pharaohs. When she came to the throne, Egypt was still recovering from a period of turbulence known as the Second Intermediate Period a few generations earlier. Hatshepsut reasserted Egyptian power by building up international trade and commissioned buildings considered masterpieces of Egyptian architecture. She also made significant changes to the ideology surrounding the pharaoh and the gods. However, following her death, her name was erased from the records and left out of ancient lists of Egyptian kings.With:Elizabeth Frood Associate Professor of Egyptology at the University of OxfordKate Spence Lecturer in Egyptian Archaeology at the University of CambridgeCampbell Price Curator of Egypt and Sudan at The Manchester MuseumProducer: Victoria Brignell.

Melvyn Bragg and his guests discuss nuclear fusion, the process that powers stars. In the 1920s physicists predicted that it might be possible to generate huge amounts of energy by fusing atomic nuclei together, a reaction requiring enormous temperatures and pressures. Today we know that this complex reaction is what keeps the Sun shining. Scientists have achieved fusion in the laboratory and in nuclear weapons; today it is seen as a likely future source of limitless and clean energy.Guests:Philippa Browning, Professor of Astrophysics at the University of ManchesterSteve Cowley, Chief Executive of the United Kingdom Atomic Energy AuthorityJustin Wark, Professor of Physics and fellow of Trinity College at the University of OxfordProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Haitian Revolution. In 1791 an uprising began in the French colonial territory of St Domingue. Partly a consequence of the French Revolution and partly a backlash against the brutality of slave owners, it turned into a complex struggle involving not just the residents of the island but French, English and Spanish forces. By 1804 the former slaves had won, establishing the first independent state in Latin America and the first nation to be created as a result of a successful slave rebellion. But the revolution also created one of the world's most impoverished societies, a legacy which Haiti has struggled to escape.ContributorsKate Hodgson, Postdoctoral Research Fellow in French at the University of LiverpoolTim Lockley, Reader in American Studies at the University of WarwickKaren Salt, Fellow in History in the School of Language and Literature at the University of AberdeenProducer: Luke Mulhall.

Melvyn Bragg and his guests discuss the life and work of Rudyard Kipling. Born in Bombay in 1865, Kipling has been described as the poet of Empire, celebrated for fictional works including Kim and The Jungle Book. Today his poem 'If--' remains one of the best known in the English language. Kipling was amongst the first writers in English to develop the short story as a literary form in its own right, and was the first British recipient of a Nobel Prize for Literature. A literary celebrity of the Edwardian era, Kipling's work for the Commonwealth War Graves Commission played a major role in Britain's cultural response to the First World War.Contributors:Howard Booth, Senior Lecturer in English Literature at the University of ManchesterDaniel Karlin, Winterstoke Professor of English Literature at the University of BristolJan Montefiore, Professor of Twentieth Century English Literature at the University of KentProducer: Luke Mulhall.

Melvyn Bragg and his guests discuss the Battle of Talas, a significant encounter between Arab and Chinese forces which took place in central Asia in 751 AD. It brought together two mighty empires, the Abbasid Caliphate and the Tang Dynasty, and although not well known today the battle had profound consequences for the future of both civilisations. The Arabs won the confrontation, but the battle marks the point where the Islamic Empire halted its march eastwards, and the Chinese stopped their expansion to the west. It was also a point of cultural exchange: some historians believe that it was also the moment when the technology of paper manufacture found its way from China to the Western world.GUESTSHilde de Weerdt, Professor of Chinese History at Leiden UniversityMichael Höckelmann, British Academy Postdoctoral Fellow in the Department of History at King's College LondonHugh Kennedy, Professor of Arabic at SOAS, University of LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the life, work and reputation of Julius Caesar. Famously assassinated as he entered the Roman senate on the Ides of March, 44 BC, Caesar was an inspirational general who conquered much of Europe. He was a ruthless and canny politician who became dictator of Rome, and wrote The Gallic Wars, one of the most admired and studied works of Latin literature. Shakespeare is one of many later writers to have been fascinated by the figure of Julius Caesar.With:Christopher Pelling Regius Professor of Greek at the University of OxfordCatherine Steel Professor of Classics at the University of GlasgowMaria Wyke Professor of Latin at University College LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Euler's number, also known as e. First discovered in the seventeenth century by the Swiss mathematician Jacob Bernoulli when he was studying compound interest, e is now recognised as one of the most important and interesting numbers in mathematics. Roughly equal to 2.718, e is useful in studying many everyday situations, from personal savings to epidemics. It also features in Euler's Identity, sometimes described as the most beautiful equation ever written. With:Colva Roney-Dougal Reader in Pure Mathematics at the University of St AndrewsJune Barrow-Green Senior Lecturer in the History of Maths at the Open UniversityVicky Neale Whitehead Lecturer at the Mathematical Institute and Balliol College at the University of OxfordProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Sun. The object that gives the Earth its light and heat is a massive ball of gas and plasma 93 million miles away. Thanks to the nuclear fusion reactions taking place at its core, the Sun has been shining for four and a half billion years. Its structure, and the processes that keep it burning, have fascinated astronomers for centuries. After the invention of the telescope it became apparent that the Sun is not a placid, steadily shining body but is subject to periodic changes in its appearance and eruptions of dramatic violence, some of which can affect us here on Earth. Recent space missions have revealed fascinating new insights into our nearest star.With:Carolin Crawford Gresham Professor of Astronomy and Fellow of Emmanuel College, CambridgeYvonne Elsworth Poynting Professor of Physics at the University of BirminghamLouise Harra Professor of Solar Physics at UCL Mullard Space Science LaboratoryProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Virginia Woolf's novel Mrs Dalloway. First published in 1925, it charts a single day in the life of Clarissa Dalloway, a prosperous member of London society, as she prepares to throw a party. Writing in her diary during the writing of the book, Woolf explained what she had set out to do: 'I want to give life and death, sanity and insanity. I want to criticize the social system, and to show it at work at its most intense.' Celebrated for its innovative narrative technique and distillation of many of the preoccupations of 1920s Britain, Mrs Dalloway is now seen as a landmark of twentieth-century fiction, and one of the finest products of literary modernism.With:Professor Dame Hermione Lee President of Wolfson College, OxfordJane Goldman Reader in English Literature at the University of GlasgowKathryn Simpson Senior Lecturer in English Literature at Cardiff Metropolitan University.

Melvyn Bragg and his guests discuss one of the most remarkable figures of the Middle Ages, Hildegard of Bingen. The abbess of a Benedictine convent, Hildegard experienced a series of mystical visions which she documented in her writings. She was an influential person in the religious world and much of her extensive correspondence with popes, monarchs and other important figures survives. Hildegard was also celebrated for her wide-ranging scholarship, which as well as theology covered the natural world, science and medicine. Officially recognised as a saint by the Catholic Church in 2012, Hildegard is also one of the earliest known composers. Since their rediscovery in recent decades her compositions have been widely recorded and performed.With:Miri Rubin Professor of Medieval and Early Modern History and Head of the School of History at Queen Mary, University of LondonWilliam Flynn Lecturer in Medieval Latin at the Institute for Medieval Studies at the University of LeedsAlmut Suerbaum Professor of Medieval German and Fellow of Somerville College, Oxford.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the philosophy of solitude. The state of being alone can arise for many different reasons: imprisonment, exile or personal choice. It can be prompted by religious belief, personal necessity or a philosophical need for solitary contemplation. Many thinkers have dealt with the subject, from Plato and Aristotle to Hannah Arendt. It's a philosophical tradition that takes in medieval religious mystics, the work of Montaigne and Adam Smith, and the great American poets of solitude Thoreau and Emerson.With:Melissa Lane Professor of Politics at Princeton UniversitySimon Blackburn Professor of Philosophy at the New College of the Humanities and Fellow of Trinity College, CambridgeJohn Haldane Professor of Philosophy at the University of St AndrewsProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the life and work of Robert Boyle, a pioneering scientist and a founder member of the Royal Society. Born in Ireland in 1627, Boyle was one of the first natural philosophers to conduct rigorous experiments, laid the foundations of modern chemistry and derived Boyle's Law, describing the physical properties of gases. In addition to his experimental work he left a substantial body of writings about philosophy and religion; his piety was one of the most important factors in his intellectual activities, prompting a celebrated dispute with his contemporary Thomas Hobbes.With:Simon Schaffer Professor of the History of Science at the University of CambridgeMichael Hunter Emeritus Professor of History at Birkbeck College, University of LondonAnna Marie Roos Senior Lecturer in the History of Science and Medicine at the University of LincolnProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Bluestockings. Around the middle of the eighteenth century a small group of intellectual women began to meet regularly to discuss literature and other matters, inviting some of the leading thinkers of the day to take part in informal salons. In an age when women were not expected to be highly educated, the Bluestockings were sometimes regarded with suspicion or even hostility. But prominent members such as Elizabeth Montagu - known as 'the Queen of the Bluestockings', and author of an influential essay about Shakespeare - and the classicist Elizabeth Carter were highly regarded for their scholarship. Their accomplishments led to far greater acceptance of women as the intellectual equal of men, and furthered the cause of female education.With:Karen O'Brien Vice-Principal and Professor of English at King's College LondonElizabeth Eger Reader in English Literature at King's College LondonNicole Pohl Reader in English Literature at Oxford Brookes UniversityProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the history and contents of the Talmud, one of the most important texts of Judaism. The Talmud was probably written down over a period of several hundred years, beginning in the 2nd century. It contains the authoritative text of the traditional Jewish oral law, and also an account of early Rabbinic discussion of, and commentary on, these laws. In later centuries scholars wrote important commentaries on these texts, which remain central to most strands of modern Judaism.With:Philip Alexander Emeritus Professor of Jewish Studies at the University of ManchesterRabbi Norman Solomon Former Lecturer at the Oxford Centre for Jewish and Hebrew StudiesLaliv Clenman Lecturer in Rabbinic Literature at Leo Baeck College and a Visiting Lecturer at the Department of Theology and Religious Studies, King's College LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Rubaiyat of Omar Khayyam. In 1859 the poet Edward FitzGerald published a long poem based on the verses of the 11th-century Persian scholar Omar Khayyam. Not a single copy was sold in the first few months after the work's publication, but after it came to the notice of members of the Pre-Raphaelite Brotherhood it became enormously influential. Although only loosely based on the original, the Rubaiyat made Khayyam the best-known Eastern poet in the English-speaking world. FitzGerald's version is itself one of the most admired works of Victorian literature, praised and imitated by many later writers.With:Charles Melville Professor of Persian History at the University of CambridgeDaniel Karlin Winterstoke Professor of English Literature at the University of BristolKirstie Blair Professor of English Studies at the University of StirlingProducer: Thomas Morris.

Melvyn Bragg and his guests discuss photosynthesis, the process by which green plants and many other organisms use sunlight to synthesise organic molecules. Photosynthesis arose very early in evolutionary history and has been a crucial driver of life on Earth. In addition to providing most of the food consumed by organisms on the planet, it is also responsible for maintaining atmospheric oxygen levels, and is thus almost certainly the most important chemical process ever discovered.With:Nick Lane Reader in Evolutionary Biochemistry at University College LondonSandra Knapp Botanist at the Natural History MuseumJohn Allen Professor of Biochemistry at Queen Mary, University of London.Producer: Thomas Morris

Melvyn Bragg and his guests discuss the Sino-Japanese War of 1937-45. After several years of rising tension, and the Japanese occupation of Manchuria, full-scale war between Japan and China broke out in the summer of 1937. The Japanese captured many major Chinese ports and cities, but met with fierce resistance, despite internal political divisions on the Chinese side. When the Americans entered the war following the bombing of Pearl Harbor, the Japanese found themselves fighting on several fronts simultaneously, and finally capitulated in August 1945. This notoriously brutal conflict left millions dead and had far-reaching consequences for international relations in Asia.With:Rana Mitter Professor of the History and Politics of Modern China at the University of OxfordBarak Kushner Senior Lecturer in Japanese History at the University of CambridgeTehyun Ma Lecturer in Chinese History at the University of ExeterProducer: Thomas Morris.

Melvyn Bragg and his guests discuss The Tale of Sinuhe, one of the most celebrated works of ancient Egyptian literature. Written around four thousand years ago, the poem narrates the story of an Egyptian official who is exiled to Syria before returning to his homeland some years later. The number of versions of the poem, which is known from several surviving papyri and inscriptions, suggests that it was seen as an important literary work; although the story is set against a backdrop of real historical events, most scholars believe that the poem is a work of fiction.With:Richard Parkinson Professor of Egyptology and Fellow of Queen's College at the University of OxfordRoland Enmarch Senior Lecturer in Egyptology at the University of Liverpool.Aidan Dodson Senior Research Fellow in the Department of Archaeology and Anthropology at the University of BristolProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Laurence Sterne's novel Tristram Shandy. Sterne's comic masterpiece is an extravagantly inventive work which was hugely popular when first published in 1759. Its often bawdy humour, and numerous digressions, are combined with bold literary experiment, such as a page printed entirely black to mark the death of one of the novel's characters. Dr Johnson wrote that "Nothing odd will do long. Tristram Shandy did not last" - but two hundred and fifty years after the book's publication, Tristram Shandy remains one of the most influential and widely admired books of the eighteenth century.With:Judith Hawley Professor of Eighteenth-Century Literature at Royal Holloway, University of LondonJohn Mullan Professor of English at University College LondonMary Newbould Bowman Supervisor in English at Wolfson College, University of Cambridge.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Domesday Book, a vast survey of the land and property of much of England and Wales completed in 1086. Twenty years after the Battle of Hastings, William the Conqueror sent officials to most of his new territories to compile a list of land holdings and to gather information about settlements, the people who lived there and even their farm animals. Almost without parallel in European history, the resulting document was of immense importance for many centuries, and remains a central source for medieval historians.With:Stephen Baxter Reader in Medieval History at Kings College LondonElisabeth van Houts Honorary Professor of Medieval European History at the University of CambridgeDavid Bates Professorial Fellow in Medieval History at the University of East AngliaProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Strabo's Geographica. Written almost exactly two thousand years ago by a Greek scholar living in Rome, the Geographica is an ambitious attempt to describe the entire world known to the Romans and Greeks at that time. Strabo seems to have based his book on accounts of distant lands given to him by contemporary travellers and imperial administrators, and on earlier works of scholarship by other Greek writers. One of the earliest systematic works of geography, Strabo's book offers a revealing insight into the state of ancient scholarship, and remained influential for many centuries after the author's death. With:Paul Cartledge AG Leventis Professor of Greek Culture at the University of CambridgeMaria Pretzler Senior Lecturer in Ancient History at Swansea UniversityBenet Salway Senior Lecturer in Ancient History at UCLProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the science of matter and the states in which it can exist. Most people are familiar with the idea that a substance like water can exist in solid, liquid and gaseous forms. But as much as 99% of the matter in the universe is now believed to exist in a fourth state, plasma. Today scientists recognise a number of other exotic states or phases, such as glasses, gels and liquid crystals - many of them with useful properties that can be exploited.With:Andrea Sella Professor of Chemistry at University College LondonAthene Donald Professor of Experimental Physics at the University of CambridgeJustin Wark Professor of Physics and Fellow of Trinity College at the University of OxfordProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Max Weber's book the Protestant Ethic and the Spirit of Capitalism. Published in 1905, Weber's essay proposed that Protestantism had been a significant factor in the emergence of capitalism, making an explicit connection between religious ideas and economic systems. Weber suggested that Calvinism, with its emphasis on personal asceticism and the merits of hard work, had created an ethic which had enabled the success of capitalism in Protestant countries. Weber's essay has come in for some criticism since he published the work, but is still seen as one of the seminal texts of twentieth-century sociology.With:Peter Ghosh Fellow in History at St Anne's College, OxfordSam Whimster Honorary Professor in Sociology at the University of New South WalesLinda Woodhead Professor of Sociology of Religion at Lancaster University.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the work of George Berkeley, an Anglican bishop who was one of the most important philosophers of the eighteenth century. Bishop Berkeley believed that objects only truly exist in the mind of somebody who perceives them - an idea he called immaterialism. His interests and writing ranged widely, from the science of optics to religion and the medicinal benefits of tar water. His work on the nature of perception was a spur to many later thinkers, including David Hume and Immanuel Kant. The clarity of Berkeley's writing, and his ability to pose a profound problem in an easily understood form, has made him one of the most admired early modern thinkers.With:Peter Millican Gilbert Ryle Fellow and Professor of Philosophy at Hertford College, OxfordTom Stoneham Professor of Philosophy at the University of YorkMichela Massimi Senior Lecturer in Philosophy of Science at the University of Edinburgh.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Trinity. The idea that God is a single entity, but one known in three distinct forms - Father, Son and Holy Spirit - has been a central belief for most Christians since the earliest years of the religion. The doctrine was often controversial in the early years of the Church, until clarified by the Council of Nicaea in the late 4th century. Later thinkers including St Augustine and Thomas Aquinas recognised that this religious mystery posed profound theological questions, such as whether the three persons of the Trinity always acted together, and whether they were of equal status. The Trinity's influence on Christian thought and practice is considerable, although it is interpreted in different ways by different Christian traditions. With:Janet Soskice Professor of Philosophical Theology at the University of Cambridge and a Fellow of Jesus CollegeMartin Palmer Director of the International Consultancy on Religion, Education, and CultureThe Reverend Graham Ward Regius Professor of Divinity at the University of Oxford and a Canon of Christ Church.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the life of Spartacus, the gladiator who led a major slave rebellion against the Roman Republic in the 1st century BC. He was an accomplished military leader, and the campaign he led contributed significantly to the instability of the Roman state in this period. Spartacus was celebrated by some ancient historians and reviled by others, and became a hero to revolutionaries in 19th-century Europe. Modern perceptions of his character have been influenced by Stanley Kubrick's 1960 film - but ancient sources give a rather more complex picture of Spartacus and the aims of his rebellion.With:Mary Beard Professor of Classics at the University of CambridgeMaria Wyke Professor of Latin at University College, LondonTheresa Urbainczyk Associate Professor of Classics at University College, Dublin.Producer: Victoria Brignell.

Melvyn Bragg and his guests discuss the eye. Humans have been attempting to understand the workings and significance of the organ for at least 2500 years. Some ancient philosophers believed that the eye enabled creatures to see by emitting its own light. The function and structures of the eye became an area of particular interest to doctors in the Islamic Golden Age. In Renaissance Europe the work of thinkers including Kepler and Descartes revolutionised thinking about how the organ worked, but it took several hundred years for the eye to be thoroughly understood. Eyes have long attracted more than purely scientific interest, known even today as the 'windows on the soul'.With:Patricia Fara Senior Tutor of Clare College, University of CambridgeWilliam Ayliffe Gresham Professor of Physic at Gresham CollegeRobert Iliffe Professor of Intellectual History and History of Science at the University of SussexProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Social Darwinism. After the publication of Charles Darwin's masterpiece On the Origin of Species in 1859, some thinkers argued that Darwin's ideas about evolution could also be applied to human society. One thinker particularly associated with this movement was Darwin's near-contemporary Herbert Spencer, who coined the phrase 'survival of the fittest'. He argued that competition among humans was beneficial, because it ensured that only the healthiest and most intelligent individuals would succeed. Social Darwinism remained influential for several generations, although its association with eugenics and later adoption as an ideological position by Fascist regimes ensured its eventual downfall from intellectual respectability.With:Adam Kuper Centennial Professor of Anthropology at the LSE, University of LondonGregory Radick Professor of History and Philosophy of Science at the University of LeedsCharlotte Sleigh Reader in the History of Science at the University of Kent.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss chivalry, the moral code observed by knights of the Middle Ages. Chivalry originated in the military practices of aristocratic French and German soldiers, but developed into an elaborate system governing many different aspects of knightly behaviour. It influenced the conduct of medieval military campaigns and also had important religious and literary dimensions. It gave rise to the phenomenon of courtly love, the subject of much romance literature, as well as to the practice of heraldry. The remnants of the chivalric tradition linger in European culture even today.Miri Rubin Professor of Medieval and Early Modern History and Head of the School of History at Queen Mary, University of LondonMatthew Strickland Professor of Medieval History at the University of GlasgowLaura Ashe Associate Professor in English at the University of Oxford and Fellow of Worcester CollegeProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Phoenicians. The Greek historian Herodotus wrote about a people from the Levant who were accomplished sailors and traders, and who taught the Greeks their alphabet. He called them the Phoenicians, the Greek word for purple, although it is not known what they called themselves. By about 700 BC they were trading all over the Mediterranean, taking Egyptian and Syrian goods as far as Spain and North Africa. Although they were hugely influential in the ancient world, they left few records of their own; some contemporary scholars believe that the Phoenicians were never a unified civilisation but a loose association of neighbouring city-states. With:Mark Woolmer Assistant Principal at Collingwood College, Durham UniversityJosephine Quinn Lecturer in Ancient History at the University of OxfordCyprian Broodbank Professor of Mediterranean Archaeology at University College LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Catastrophism, the idea that natural disasters have had a significant influence in moulding the Earth's geological features. In 1822 William Buckland, the first reader of Geology at the University of Oxford, published his famous Reliquae Diluvianae, in which he ascribed most of the fossil record to the effects of Noah's flood. Charles Lyell in his Principles of Geology challenged these writings, arguing that geological change was slow and gradual, and that the processes responsible could still be seen at work today - a school of thought known as Uniformitarianism. But in the 1970s the idea that natural catastrophes were a major factor in the Earth's geology was revived and given new respectability by the discovery of evidence of a gigantic asteroid impact 65 million years ago, believed by many to have resulted in the extinction of the dinosaurs.With:Andrew Scott Leverhulme Emeritus Fellow in the Department of Earth Sciences at Royal Holloway, University of LondonJan Zalasiewicz Senior Lecturer in Geology at the University of LeicesterLeucha Veneer Visiting Scholar at the Faculty of Life Sciences at the University of ManchesterProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the sources for early Chinese history. The first attempts to make a record of historical events in China date from the Shang dynasty of the second millennium BC. The earliest surviving records were inscribed on bones or tortoise shells; in later centuries, chroniclers left detailed accounts on paper or silk. In the last hundred years, archaeologists have discovered a wealth of new materials, including a cache of previously unknown texts which were found in a sealed cave on the edge of the Gobi Desert. Such sources are are shedding new light on Chinese history, although interpreting ancient sources from the period before the invention of printing presents a number of challenges.With:Roel Sterckx Joseph Needham Professor of Chinese History at the University of CambridgeTim Barrett Professor of East Asian History at SOAS, University of LondonHilde de Weerdt Professor of Chinese History at Leiden UniversityProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Battle of Tours. In 732 a large Arab army invaded Gaul from northern Spain, and travelled as far north as Poitiers. There they were defeated by Charles Martel, whose Frankish and Burgundian forces repelled the invaders. The result confirmed the regional supremacy of Charles, who went on to establish a strong Frankish dynasty. The Battle of Tours was the last major incursion of Muslim armies into northern Europe; some historians, including Edward Gibbon, have seen it as the decisive moment that determined that the continent would remain Christian.With:Hugh Kennedy Professor of Arabic at SOAS, University of LondonRosamond McKitterick Professor of Medieval History at the University of CambridgeMatthew Innes Vice-Master and Professor of History at Birkbeck, University of London.

Melvyn Bragg and his guests discuss Plato's Symposium, one of the Greek philosopher's most celebrated works. Written in the 4th century BC, it is a dialogue set at a dinner party attended by a number of prominent ancient Athenians, including the philosopher Socrates and the playwright Aristophanes. Each of the guests speaks of Eros, or erotic love. This fictional discussion of the nature of love, how and why it arises and what it means to be in love, has had a significant influence on later thinkers, and is the origin of the modern notion of Platonic love.With:Angie Hobbs Professor of the Public Understanding of Philosophy at the University of SheffieldRichard Hunter Regius Professor of Greek at the University of CambridgeFrisbee Sheffield Director of Studies in Philosophy at Christ's College, University of Cambridge.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Medici family, who dominated Florence's political and cultural life for three centuries. The House of Medici came to prominence in Italy in the fifteenth century as a result of the wealth they had built up through banking. With the rise of Cosimo de' Medici, they became Florence's most powerful and influential dynasty, effectively controlling the city's government. Their patronage of the arts turned Florence into a leading centre of the Renaissance and the Medici Bank was one of the most successful institutions of its day. As well as producing four popes, members of the House of Medici married into various European royal families.With:Evelyn Welch Professor of Renaissance Studies at King's College, University of LondonRobert Black Professor of Renaissance History at the University of LeedsCatherine Fletcher Lecturer in Public History at the University of SheffieldProducer: Victoria Brignell.

Melvyn Bragg and his guests discuss complexity and how it can help us understand the world around us. When living beings come together and act in a group, they do so in complicated and unpredictable ways: societies often behave very differently from the individuals within them. Complexity was a phenomenon little understood a generation ago, but research into complex systems now has important applications in many different fields, from biology to political science. Today it is being used to explain how birds flock, to predict traffic flow in cities and to study the spread of diseases.With:Ian Stewart Emeritus Professor of Mathematics at the University of WarwickJeff Johnson Professor of Complexity Science and Design at the Open UniversityProfessor Eve Mitleton-Kelly Director of the Complexity Research Group at the London School of Economics.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the life and work of Pliny the Younger, famous for his letters. A prominent lawyer in Rome in the first century AD, Pliny later became governor of the province of Bithynia, on the Black Sea coast of modern Turkey. Throughout his career he was a prolific letter-writer, sharing his thoughts with great contemporaries including the historian Tacitus, and asking the advice of the Emperor Trajan. Pliny's letters offer fascinating insights into life in ancient Rome and its empire, from the mundane details of irrigation schemes to his vivid eyewitness account of the eruption of Vesuvius.With:Catharine Edwards Professor of Classics and Ancient History at Birkbeck, University of LondonRoy Gibson Professor of Latin at the University of ManchesterAlice König Lecturer in Latin and Classical Studies at the University of St AndrewsProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Hindu ideas about Creation. According to most Western religious traditions, a deity was the original creator of the Universe. Hinduism, on the other hand, has no single creation story. For thousands of years, Hindu thinkers have taken a variety of approaches to the question of where we come from, with some making the case for divine intervention and others asking whether it is even possible for humans to comprehend the nature of creation. The origin of our existence, and the nature of the Universe we live in, is one of the richest strands of Hindu thought.With:Jessica Frazier Lecturer in Religious Studies at the University of Kent and a Research Fellow of the Oxford Centre for Hindu Studies at the University of OxfordChakravarthi Ram-Prasad Professor of Comparative Religion and Philosophy at Lancaster UniversityGavin Flood Professor of Hindu Studies and Comparative Religion at the University of Oxford.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the development of the microscope, an instrument which has revolutionised our knowledge of the world and the organisms that inhabit it. In the seventeenth century the pioneering work of two scientists, the Dutchman Antonie van Leeuwenhoek and Robert Hooke in England, revealed the teeming microscopic world that exists at scales beyond the capabilities of the naked eye. The microscope became an essential component of scientific enquiry by the nineteenth century, but in the 1930s a German physicist, Ernst Ruska, discovered that by using a beam of electrons he could view structures much tinier than was possible using visible light. Today light and electron microscopy are among the most powerful tools at the disposal of modern science, and new techniques are still being developed.With:Jim Bennett Visiting Keeper at the Science Museum in LondonSir Colin Humphreys Professor of Materials Science and Director of Research at the University of CambridgeMichelle Peckham Professor of Cell Biology at the University of LeedsProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the life of Pocahontas, the Native American woman who to English eyes became a symbol of the New World. During the colonisation of Virginia in the first years of the seventeenth century, Pocahontas famously saved the life of an English prisoner, John Smith. Later captured, she converted to Christianity, married a settler and travelled to England where she was regarded as a curiosity. She died in 1617 at the age of 22 and was buried in Gravesend; her story has fascinated generations on both sides of the Atlantic, and has been reinterpreted and retold by many writers and artists.With:Susan Castillo Harriet Beecher Stowe Emeritus Professor of American Studies at King's College LondonTim Lockley Reader in American Studies at the University of WarwickJacqueline Fear-Segal Reader in American History and Culture at the University of East AngliaProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Shakespeare's play The Tempest. Written in around 1610, it is thought to be one of the playwright's final works and contains some of the most poetic and memorable passages in all his output. It was influenced by accounts of distant lands written by contemporary explorers, and by the complex international politics of the early Jacobean age.The Tempest is set entirely on an unnamed island inhabited by the magician Prospero, his daughter Miranda and the monstrous Caliban, one of the most intriguing characters in Shakespeare's output. Its themes include magic and the nature of theatre itself - and some modern critics have seen it as an early meditation on the ethics of colonialism.With:Jonathan Bate Provost of Worcester College, OxfordErin Sullivan Lecturer and Fellow at the Shakespeare Institute, University of BirminghamKatherine Duncan-Jones Emeritus Fellow of Somerville College, OxfordProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Ordinary Language Philosophy, a school of thought which emerged in Oxford in the years following World War II. With its roots in the work of Ludwig Wittgenstein, Ordinary Language Philosophy is concerned with the meanings of words as used in everyday speech. Its adherents believed that many philosophical problems were created by the misuse of words, and that if such 'ordinary language' were correctly analysed, such problems would disappear. Philosophers associated with the school include some of the most distinguished British thinkers of the twentieth century, such as Gilbert Ryle and JL Austin.With:Stephen Mulhall Professor of Philosophy at New College, OxfordRay Monk Professor of Philosophy at the University of SouthamptonJulia Tanney Reader in Philosophy of Mind at the University of KentProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Berlin Conference of 1884. In the 1880s, as colonial powers attempted to increase their spheres of influence in Africa, tensions began to grow between European nations including Britain, Belgium and France. In 1884 the German Chancellor, Otto von Bismarck, brought together many of Europe's leading statesmen to discuss trade and colonial activities in Africa. Although the original purpose of the summit was to settle the question of territorial rights in West Africa, negotiations eventually dealt with the entire continent. The conference was part of the process known as the Scramble for Africa, and the decisions reached at it had effects which have lasted to the present day. The conference is commonly seen as one of the most significant events of the so-called Scramble for Africa; in the following decades, European nations laid claim to most of the continent.With:Richard Drayton Rhodes Professor of Imperial History at King's College LondonRichard Rathbone Emeritus Professor of African History at SOAS, University of LondonJoanna Lewis Assistant Professor of Imperial History at the LSE, University of London.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Corn Laws. In 1815 the British Government passed legislation which artificially inflated the price of corn. The measure was supported by landowners but strongly opposed by manufacturers and the urban working class. In the 1830s the Anti-Corn Law League was founded to campaign for their repeal, led by the Radical Richard Cobden. The Conservative government of Sir Robert Peel finally repealed the laws in 1846, splitting his party in the process, and the resulting debate had profound consequences for the political and economic future of the country.With:Lawrence Goldman Fellow in Modern History at St Peter's College, OxfordBoyd Hilton Former Professor of Modern British History at the University of Cambridge and Fellow of Trinity CollegeCheryl Schonhardt-Bailey Reader in Political Science at the London School of EconomicsProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Book of Common Prayer. In 1549, at the height of the English Reformation, a new prayer book was published containing versions of the liturgy in English. Generally believed to have been supervised by Thomas Cranmer, the Book of Common Prayer was at the centre of the decade of religious turmoil that followed, and disputes over its use were one of the major causes of the English Civil War in the 1640s. The book was revised several times before the celebrated final version was published in 1662. It is still in use in many churches today, and remains not just a liturgical text of great importance but a literary work of profound beauty and influence.With:Diarmaid MacCulloch Professor of the History of the Church at the University of OxfordAlexandra Walsham Professor of Modern History at the University of CambridgeMartin Palmer Director of the International Consultancy on Religion, Education, and CultureProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Roman physician and medical theorist Galen. The most celebrated doctor in the ancient world, Galen was Greek by birth but spent most of his career in Rome, where he was personal physician to three Emperors. He was one of the most prolific authors of his age, and a sixth of all surviving ancient literature in Greek was written by him. Celebrated in his own lifetime, he was regarded as the preeminent medical authority for centuries after his death, both in the Arab world and in medieval Europe. It was only the discoveries of Renaissance science which removed Galen from his dominant position in the pantheon of medicine.With:Vivian Nutton Emeritus Professor of the History of Medicine at University College LondonHelen King Professor of Classical Studies at the Open UniversityCaroline Petit Wellcome Trust Senior Research Fellow in Classics at the University of WarwickProducer: Thomas Morris.

Melvyn Bragg and his guests discuss exoplanets. Astronomers have speculated about the existence of planets beyond our solar system for centuries. Although strenuous efforts were made to find such planets orbiting distant stars, it was not until the 1990s that instruments became sophisticated enough to detect such remote objects. In 1992 Dale Frail and Aleksander Wolszczan discovered the first confirmed exoplanets: two planets orbiting the pulsar PSR B1257+12. Since then, astronomers have discovered more than 900 exoplanets, and are able to reach increasingly sophisticated conclusions about what they look like - and whether they might be able to support life. Recent data from experiments such as NASA's space telescope Kepler indicates that such planets may be far more common than previously suspected.With:Carolin Crawford Gresham Professor of Astronomy and a member of the Institute of Astronomy at the University of CambridgeDon Pollacco Professor of Astronomy at the University of WarwickSuzanne Aigrain Lecturer in Astrophysics at the University of Oxford and a Fellow of All Souls College.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Mamluks, who ruled Egypt and Syria from about 1250 to 1517. Originally slave soldiers who managed to depose their masters, they went on to repel the Mongols and the Crusaders to become the dominant force in the medieval Islamic Middle Eastern world. Although the Mamluks were renowned as warriors, under their rule art, crafts and architecture blossomed. Little known by many in the West today, the Mamluks remained in power for almost 300 years until they were eventually overthrown by the Ottomans.With:Amira Bennison Reader in the History and Culture of the Maghrib at the University of Cambridge and Fellow of Magdalene CollegeRobert Irwin Former Senior Research Associate in the Department of History at SOAS, University of LondonDoris Behrens-Abouseif Nasser D Khalili Professor of Islamic Art and Archaeology at SOAS, University of LondonProducer: Victoria Brignell.

Melvyn Bragg and his guests begin a new series of the programme with a discussion of the French polymath Blaise Pascal. Born in 1623, Pascal was a brilliant mathematician and scientist, inventing one of the first mechanical calculators and making important discoveries about fluids and vacuums while still a young man. In his thirties he experienced a religious conversion, after which he devoted most of his attention to philosophy and theology. Although he died in his late thirties, Pascal left a formidable legacy as a scientist and pioneer of probability theory, and as one of seventeenth century Europe's greatest writers. With:David Wootton Anniversary Professor of History at the University of YorkMichael Moriarty Drapers Professor of French at the University of CambridgeMichela Massimi Senior Lecturer in the Philosophy of Science at the University of Edinburgh.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the invention of radio. In the early 1860s the Scottish physicist James Clerk Maxwell derived four equations which together describe the behaviour of electricity and magnetism. They predicted the existence of a previously unknown phenomenon: electromagnetic waves. These waves were first observed in the early 1880s, and over the next two decades a succession of scientists and engineers built increasingly elaborate devices to produce and detect them. Eventually this gave birth to a new technology: radio. The Italian Guglielmo Marconi is commonly described as the father of radio - but many other figures were involved in its development, and it was not him but a Canadian, Reginald Fessenden, who first succeeded in transmitting speech over the airwaves.With:Simon Schaffer Professor of the History of Science at the University of CambridgeElizabeth Bruton Postdoctoral Researcher at the University of LeedsJohn Liffen Curator of Communications at the Science Museum, LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Romance of the Three Kingdoms, widely regarded as one of the greatest works of Chinese literature. Written 600 years ago, it is an historical novel that tells the story of a tumultuous period in Chinese history, the 2nd and 3rd centuries AD. Partly historical and partly legend, it recounts the fighting and scheming of the feudal lords and the three states which came to power as the Han Dynasty collapsed. The influence of Romance of the Three Kingdoms in East Asia has been likened to that of Homer in the West, and this warfare epic remains popular in China today.With:Frances Wood Former Lead Curator of Chinese Collections at the British LibraryCraig Clunas Professor of the History of Art at the University of OxfordMargaret Hillenbrand University Lecturer in Modern Chinese Literature at the University of Oxford and Fellow of Wadham CollegeProducer: Victoria Brignell.

Melvyn Bragg and his guests discuss the Physiocrats, an important group of economic thinkers in eighteenth-century France. The Physiocrats believed that the land was the ultimate source of all wealth, and crucially that markets should not be constrained by governments. Their ideas were important not just to economists but to the course of politics in France. Later they influenced the work of Adam Smith, who called Physiocracy "perhaps the nearest approximation to the truth that has yet been published upon the subject of political economy."With:Richard Whatmore Professor of Intellectual History & the History of Political Thought at the University of SussexJoel Felix Professor of History at the University of ReadingHelen Paul Lecturer in Economics and Economic History at the University of Southampton.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the meaning and significance of prophecy in the Abrahamic religions. Prophets, those with the ability to convey divinely-inspired revelation, are significant figures in the Hebrew Bible and later became important not just to Judaism but also to Christianity and Islam. Although these three religions share many of the same prophets, their interpretation of the nature of prophecy often differs.With:Mona Siddiqui Professor of Islamic and Interreligious Studies at the University of EdinburghJustin Meggitt University Senior Lecturer in the Study of Religion and the Origins of Christianity at the University of CambridgeJonathan Stökl Post-Doctoral Researcher at Leiden University.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss Einstein's theories of relativity. Between 1905 and 1917 Albert Einstein formulated a theoretical framework which transformed our understanding of the Universe. The twin theories of Special and General Relativity offered insights into the nature of space, time and gravitation which changed the face of modern science. Relativity resolved apparent contradictions in physics and also predicted several new phenomena, including black holes. It's regarded today as one of the greatest intellectual achievements of the twentieth century, and had an impact far beyond the world of science.With:Ruth Gregory Professor of Mathematics and Physics at Durham UniversityMartin Rees Astronomer Royal and Emeritus Professor of Cosmology and Astrophysics at the University of CambridgeRoger Penrose Emeritus Rouse Ball Professor of Mathematics at the University of Oxford.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss Queen Zenobia, a famous military leader of the ancient world. Born in around 240 AD, Zenobia was Empress of the Palmyrene Empire in the Middle East. A highly educated, intelligent and militarily accomplished leader, she claimed descent from Dido and Cleopatra and spoke many languages, including Egyptian. Zenobia led a rebellion against the Roman Empire and conquered Egypt before being finally defeated by the Emperor Aurelian. Her story captured the imagination of many Renaissance writers, and has become the subject of numerous operas, poems and plays.With:Edith Hall Professor of Classics at King's College, London Kate Cooper Professor of Ancient History at the University of Manchester Richard Stoneman Honorary Visiting Professor in the Department of Classics and Ancient History at the University of Exeter.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the work of the anthropologist Claude Lévi-Strauss. One of twentieth-century France's most celebrated intellectuals, Lévi-Strauss attempted to show in his work that thought processes were a feature universal to humans, whether they lived in tribal rainforest societies or in the rich intellectual life of Paris. During the 1930s he studied native Brazilian tribes in the Amazonian jungle, but for most of his long career he preferred the study to the field. He was the leading exponent of structuralism, a school of thought which was influential for decades, and was involved in a famous debate with his friend Jean-Paul Sartre, who resisted many of his ideas. His books about the nature of myth, human thought and kinship are now seen as some of the most important anthropological texts written in the twentieth century.With:Adam Kuper Visiting Professor of Anthropology at Boston University Christina Howells Professor of French at Oxford University Vincent Debaene Associate Professor of French Literature at Columbia UniversityProducer: Thomas Morris.

Melvyn Bragg and his guests discuss cosmic rays. In 1912 the physicist Victor Hess discovered that the Earth is under constant bombardment from radiation coming from outside our atmosphere. These so-called cosmic rays have been known to cause damage to satellites and electronic devices on Earth, but most are absorbed by our atmosphere. The study of cosmic rays and their effects has led to major breakthroughs in particle physics. But today physicists are still trying to establish where these highly energetic subatomic particles come from.With:Carolin Crawford Gresham Professor of Astronomy and a member of the Institute of Astronomy at the University of Cambridge Alan Watson Emeritus Professor of Physics at the University of Leeds Tim Greenshaw Professor of Physics at the University of Liverpool.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Icelandic Sagas. First written down in the 13th century, the sagas tell the stories of the Norse settlers of Iceland, who began to arrive on the island in the late 9th century. They contain some of the richest and most extraordinary writing of the Middle Ages, and often depict events known to have happened in the early years of Icelandic history, although there is much debate as to how much of their content is factual and how much imaginative. Full of heroes, feuds and outlaws, with a smattering of ghosts and trolls, the sagas inspired later writers including Sir Walter Scott, William Morris and WH Auden.With:Carolyne Larrington Fellow and Tutor in Medieval English Literature at St John's College, OxfordElizabeth Ashman Rowe University Lecturer in Scandinavian History at the University of CambridgeEmily Lethbridge Post-Doctoral Researcher at the Árni Magnússon Manuscripts Institute in ReykjavíkProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Gnosticism, a sect associated with early Christianity. The Gnostics divided the universe into two domains: the visible world and the spiritual one. They believed that a special sort of knowledge, or gnosis, would enable them to escape the evils of the physical world and allow them access to the higher spiritual realm. The Gnostics were regarded as heretics by many of the Church Fathers, but their influence was important in defining the course of early Christianity. A major archaeological discovery in Egypt in the 1940s, when a large cache of Gnostic texts were found buried in an earthenware jar, enabled scholars to learn considerably more about their beliefs.With:Martin Palmer Director of the International Consultancy on Religion, Education, and CultureCaroline Humfress Reader in History at Birkbeck College, University of LondonAlastair Logan Honorary University Fellow of the Department of Theology and Religion at the University of ExeterProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Essays of Michel de Montaigne. Born near Bordeaux in 1533, Montaigne retired from a life of public service aged 38 and began to write. He called these short works 'essais', or 'attempts'; they deal with an eclectic range of subjects, from the dauntingly weighty to the apparently trivial. Although he never considered himself a philosopher, he is often now seen as one of the most outstanding Sceptical thinkers of early modern Europe. His approachable style, intelligence and subtle thought have made him one of the most widely admired writers of the Renaissance.With:David Wootton Anniversary Professor of History at York UniversityTerence Cave Emeritus Professor of French Literature at the University of OxfordFelicity Green Chancellor's Fellow in History at the University of Edinburgh.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Putney Debates. For several weeks in late 1647, after the defeat of King Charles I in the first hostilities of the Civil War, representatives of the New Model Army and the radical Levellers met in a church in Putney to debate the future of England. There was much to discuss: who should be allowed to vote, civil liberties and religious freedom. The debates were inconclusive, but the ideas aired in Putney had a considerable influence on centuries of political thought.With:Justin Champion Professor of the History of Early Modern Ideas at Royal Holloway, University of LondonAnn Hughes Professor of Early Modern History at Keele UniversityKate Peters Fellow in History at Murray Edwards College, Cambridge.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Amazons, a tribe of formidable female warriors first described in Greek literature. They appear in the Homeric epics and were described by Herodotus, and featured prominently in the decoration of Greek vases and public buildings. In later centuries, particularly in the Renaissance, the Amazons became a popular theme of literature and art. After the discovery of the New World, the largest river in South America was named the Amazon, since the warlike tribes inhabiting the river's margins reminded Spanish pioneers of the warriors of classical myth.With:Paul Cartledge A.G. Leventis Professor of Greek Culture at Cambridge UniversityChiara Franceschini Teaching Fellow at University College London and an Academic Assistant at the Warburg InstituteCaroline Vout University Senior Lecturer in Classics and Fellow and Director of Studies at Christ's College, Cambridge.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss Japan's Sakoku period, two centuries when the country deliberately isolated itself from the Western world. Sakoku began with a series of edicts in the 1630s which restricted the rights of Japanese to leave their country and expelled most of the Europeans living there. For the next two hundred years, Dutch traders were the only Westerners free to live in Japan. It was not until 1858 and the gunboat diplomacy of the American Commodore Matthew Perry that Japan's international isolation finally ended. Although historians used to think of Japan as completely isolated from external influence during this period, recent scholarship suggests that Japanese society was far less isolated from European ideas during this period than previously thought.With:Richard Bowring Emeritus Professor of Japanese Studies at the University of CambridgeAndrew Cobbing Associate Professor of History at the University of NottinghamRebekah Clements Research Fellow of Queens' College and Research Associate at the Faculty of Asian and Middle Eastern Studies at the University of Cambridge.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss one of the simplest and most remarkable of all molecules: water. Water is among the most abundant substances on Earth, covering more than two-thirds of the planet. Consisting of just three atoms, the water molecule is superficially simple in its structure but extraordinary in its properties. It is a rare example of a substance that can be found on Earth in gaseous, liquid and solid forms, and thanks to its unique chemical behaviour is the basis of all known life. Scientists are still discovering new things about it, such as the fact that there are at least fifteen different forms of ice.Hasok Chang Hans Rausing Professor of History and Philosophy of Science at the University of CambridgeAndrea Sella Professor of Chemistry at University College LondonPatricia Hunt Senior Lecturer in Chemistry at Imperial College London.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the work of Alfred Russel Wallace, a pioneer of evolutionary theory. Born in 1823, Wallace travelled extensively, charting the distribution of animal species throughout the world. This fieldwork in the Amazon and later the Malay Archipelago led him to formulate a theory of evolution through natural selection. In 1858 he sent the paper he wrote on the subject to Charles Darwin, who was spurred into the writing and publication of his own masterpiece On the Origin of Species. Wallace was also the founder of the science of biogeography and made important discoveries about the nature of animal coloration. But despite his visionary work, Wallace has been overshadowed by the greater fame of his contemporary Darwin.With:Steve Jones Emeritus Professor of Genetics at University College LondonGeorge Beccaloni Curator of Cockroaches and Related Insects and Director of the Wallace Correspondence Project at the Natural History MuseumTed Benton Professor of Sociology at the University of EssexProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the life and work of Anton Chekhov. Born in 1860, Chekhov trained as a doctor and for most of his adult life divided his time between medicine and writing. Best known for plays including The Cherry Orchard and Three Sisters, he is also celebrated today as one of the greatest of short story writers. His works are often powerful character studies and chronicle the changing nature of Russian society in the late nineteenth century.With:Catriona Kelly Professor of Russian at the University of OxfordCynthia Marsh Emeritus Professor of Russian Drama and Literature at the University of NottinghamRosamund Bartlett Founding Director of the Anton Chekhov Foundation and former Reader in Russian at the University of Durham.Producer: Thomas Morris.

In a programme first broadcast in 2013, Melvyn Bragg and his guests discuss absolute zero, the lowest conceivable temperature.  In the early eighteenth century the French physicist Guillaume Amontons suggested that temperature had a lower limit.  The subject of low temperature became a fertile field of research in the nineteenth century, and today we know that this limit - known as absolute zero - is approximately minus 273 degrees Celsius.  It is impossible to produce a temperature exactly equal to absolute zero, but today scientists have come to within a billionth of a degree.  At such low temperatures physicists have discovered a number of strange new phenomena including superfluids, liquids capable of climbing a vertical surface.With:Simon Schaffer Professor of the History of Science at the University of CambridgeStephen Blundell Professor of Physics at the University of OxfordNicola Wilkin Lecturer in Theoretical Physics at the University of BirminghamProducer: Thomas Morris

Melvyn Bragg and his guests discuss the life and work of the Victorian anthropologist and archaeologist Augustus Pitt-Rivers. Over many years he amassed thousands of ethnographic and archaeological objects, some of which formed the founding collection of the Pitt Rivers Museum at Oxford University. Inspired by the work of Charles Darwin, Pitt-Rivers believed that human technology evolved in the same way as living organisms, and devoted much of his life to exploring this theory. He was also a pioneering archaeologist whose meticulous records of major excavations provided a model for later scholars. With:Adam Kuper Visiting Professor of Anthropology at Boston UniversityRichard Bradley Professor in Archaeology at the University of ReadingDan Hicks University Lecturer & Curator of Archaeology at the Pitt Rivers Museum at the University of Oxford.Producer: Thomas Morris.

David Bradshaw, John Bowen and Ann Pasternak Slater join Melvyn Bragg to discuss Evelyn Waugh's comic novel Decline and Fall. Set partly in a substandard boys' public school, the novel is a vivid, often riotous portrait of 1920s Britain. Its themes, including modernity, religion and fashionable society, came to dominate Waugh's later fiction, but its savage wit and economy of style were entirely new. Published when Waugh was 24, the book was immediately celebrated for its vicious satire and biting humour.With:David Bradshaw Professor of English Literature at Worcester College, OxfordJohn Bowen Professor of Nineteenth-Century Literature at the University of YorkAnn Pasternak Slater Senior Research Fellow at St Anne's College, Oxford.Producer: Thomas Morris.

Jane Francis, Richard Corfield and Carrie Lear join Melvyn Bragg to discuss ice ages, periods when a reduction in the surface temperature of the Earth has resulted in ice sheets at the Poles. Although the term 'ice age' is commonly associated with prehistoric eras when much of northern Europe was covered in ice, we are in fact currently in an ice age which began up to 40 million years ago. Geological evidence indicates that there have been several in the Earth's history, although their precise cause is not known. Ice ages have had profound effects on the geography and biology of our planet.With:Jane Francis Professor of Paleoclimatology at the University of LeedsRichard Corfield Visiting Research Fellow in the Department of Earth Sciences at Oxford UniversityCarrie Lear Senior Lecturer in Palaeoceanography at Cardiff University.Producer: Thomas Morris.

Angie Hobbs, David Sedley and James Warren join Melvyn Bragg to discuss Epicureanism, the system of philosophy based on the teachings of Epicurus and founded in Athens in the fourth century BC. Epicurus outlined a comprehensive philosophical system based on the idea that everything in the Universe is constructed from two phenomena: atoms and void. At the centre of his philosophy is the idea that the goal of human life is pleasure, by which he meant not luxury but the avoidance of pain. His followers were suspicious of marriage and politics but placed great emphasis on friendship. Epicureanism became influential in the Roman world, particularly through Lucretius's great poem De Rerum Natura, which was rediscovered and widely admired in the Renaissance.With:Angie Hobbs Professor of the Public Understanding of Philosophy at the University of SheffieldDavid Sedley Laurence Professor of Ancient Philosophy at the University of CambridgeJames Warren Reader in Ancient Philosophy at the University of CambridgeProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the War of 1812, the conflict between America and the British Empire sometimes referred to as the second American War of Independence. In June 1812, President James Madison declared war on Britain, angered by the restrictions Britain had imposed on American trade, the Royal Navy's capture of American sailors and British support for Native Americans. After three years of largely inconclusive fighting, the conflict finally came to an end with the Treaty of Ghent which, among other things, helped to hasten the abolition of the global slave trade. Although the War of 1812 is often overlooked, historians say it had a profound effect on the USA and Canada's sense of national identity, confirming the USA as an independent country. America's national anthem, The Star-Spangled Banner began life as a poem written after its author, Francis Scott Key, witnessed the British bombardment of Fort McHenry during the Battle of Baltimore. The war also led to Native Americans losing hundreds of thousands of acres of land in a programme of forced removal. With: Kathleen Burk Professor of Modern and Contemporary History at University College London Lawrence Goldman Fellow in Modern History at St Peter's College, University of Oxford Frank Cogliano Professor of American History at the University of Edinburgh Producer: Victoria Brignell.

Melvyn Bragg and his guests discuss Romulus and Remus, the central figures of the foundation myth of Rome. According to tradition, the twins were abandoned by their parents as babies, but were saved by a she-wolf who found and nursed them. Romulus killed his brother after a vicious quarrel, and went on to found a city, which was named after him.The myth has been at the core of Roman identity since the 1st century AD, although the details vary in different versions of the story. For many Roman writers, the story embodied the ethos and institutions of their civilisation. The image of the she-wolf suckling the divinely fathered twins remains a potent icon of the city even today.With:Mary Beard Professor of Classics at the University of Cambridge Peter Wiseman Emeritus Professor of Classics and Ancient History at the University of Exeter Tim Cornell Emeritus Professor of Ancient History at the University of Manchester.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss comets, the 'dirty snowballs' of the Solar System. In the early 18th century the Astronomer Royal Sir Edmond Halley compiled a list of appearances of comets, bright objects like stars with long tails which are occasionally visible in the night sky. He concluded that many of these apparitions were in fact the same comet, which returns to our skies around every 75 years, and whose reappearance he correctly predicted. Halley's Comet is today the best known example of a comet, a body of ice and dust which orbits the Sun. Since they contain materials from the time when the Solar System was formed, comets are regarded by scientists as frozen time capsules, with the potential to reveal important information about the early history of our planet and others.With:Monica Grady Professor of Planetary and Space Sciences at the Open UniversityPaul Murdin Senior Fellow at the Institute of Astronomy at the University of CambridgeDon Pollacco Professor of Astronomy at the University of WarwickProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Thomas Malory's "Le Morte Darthur", the epic tale of King Arthur and his knights of the Round Table. Sir Thomas Malory was a knight from Warwickshire, a respectable country gentleman and MP in the 1440s who later turned to a life of crime and spent various spells in prison. It was during Malory's final incarceration that he wrote "Le Morte Darthur", an epic work which was based primarily on French, but also some English, sources. Malory died shortly after his release in 1470 and it was to be another fifteen years before "Le Morte Darthur" was published by William Caxton, to immediate popular acclaim. Although the book fell from favour in the seventeenth century, it was revived again in Victorian times and became an inspiration for the Pre-Raphaelite movement who were entranced by the chivalric and romantic world that Malory portrayed. The Arthurian legend is one of the most enduring and popular in western literature and its characters - Sir Lancelot, Guinevere, Merlin and King Arthur himself, are as well-known today as they were then; and the book's themes - chivalry, betrayal, love and honour - remain as compelling.With: Helen Cooper Professor of Medieval and Renaissance English at the University of CambridgeHelen Fulton Professor of Medieval Literature and Head of Department of English and Related Literature at the University of YorkLaura Ashe CUF Lecturer and Tutorial Fellow at Worcester College at the University of OxfordProducer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the cult of Mithras, a mystery religion that existed in the Roman Empire from the 1st to the 4th centuries AD. Also known as the Mysteries of Mithras, its origins are uncertain. Academics have suggested a link with the ancient Vedic god Mitra and the Iranian Zoroastrian deity Mithra, but the extent and nature of the connection is a matter of controversy. Followers of Mithras are thought to have taken part in various rituals, most notably communal meals and a complex seven-stage initiation system. Typical depictions of Mithras show him being born from a rock, enjoying food with the sun god Sol and stabbing a bull. Mithraic places of worship have been found throughout the Roman world, including an impressive example in London. However, Mithraism went into decline in the 4th century AD with the rise of Christianity and eventually completely disappeared. In recent decades, many aspects of the cult have provoked debate, especially as there are no written accounts by its members. As a result, archaeology has been of great importance in the study of Mithraism and has provided new insights into the religion and its adherents. With:Greg Woolf Professor of Ancient History at the University of St AndrewsAlmut Hintze Zartoshty Professor of Zoroastrianism at SOAS, University of LondonJohn North Acting Director of the Institute of Classical Studies, University of London.Producer: Victoria Brignell.

Melvyn Bragg and his guests discuss The South Sea Bubble, the speculation mania in early 18th-century England which ended in the financial ruin of many of its investors. The South Sea Company was founded in 1711 with a view to restructuring government debt and restoring public credit. The company would ostensibly trade with South America, hence its name; and indeed, it did trade in slaves for the Spanish market even after the Bubble burst in 1720. People from all walks of life bought shares in the South Sea Company, from servants to gentry, and it was said the entire country was gripped by South Sea speculation mania. When the shares crashed and the company collapsed there was a public outcry and many people faced financial ruin, although some investors sold before the crash and made substantial amounts of money. For example, the bookseller Thomas Guy made his fortune and founded a hospital in his name the following year. But how did such a financial crisis develop and were there any lessons learnt following this early example of a stock market boom and bust?With:Anne Murphy Senior Lecturer in History at the University of HertfordshireHelen Paul Lecturer in Economics and Economic History at the University of SouthamptonRoey Sweet Head of the School of History at the University of LeicesterProducer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the epic poem the Shahnameh of Ferdowsi, the 'Book of Kings', which has been at the heart of Persian culture for the past thousand years. The poem recounts a legendary history of Iran from the dawn of time to the fall of the Persian Empire in the 7th century and serves, in a sense, as a creation myth for the Persian nation. The Shahnameh took Ferdowsi thirty years to write and, consisting of over 50,000 verses, is said to be the longest poem ever written by a single author. Laced with tragedy, Ferdowsi's epic chronicles battles, romances, family rifts and Man's interior struggle with himself. Although the stories may not always be true they have a profound resonance with Iranians even today, and the poem has been referred to as both the 'encyclopaedia of Iranian culture' and the identity card of the Persian people. With:Narguess Farzad Senior Fellow in Persian at SOAS, University of LondonCharles Melville Professor of Persian History at Pembroke College at the University of CambridgeVesta Sarkhosh Curtis Curator of Middle Eastern Coins at the British Museum Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the influential British philosopher Bertrand Russell. Born in 1872 into an aristocratic family, Russell is widely regarded as one of the founders of Analytic philosophy, which is today the dominant philosophical tradition in the English-speaking world. In his important book The Principles of Mathematics, he sought to reduce mathematics to logic. Its revolutionary ideas include Russell's Paradox, a problem which inspired Ludwig Wittgenstein to pursue philosophy. Russell's most significant and famous idea, the theory of descriptions, had profound consequences for the discipline.In addition to his academic work, Russell played an active role in many social and political campaigns. He supported women's suffrage, was imprisoned for his pacifism during World War I and was a founder of the Campaign for Nuclear Disarmament. He wrote a number of books aimed at the general public, including The History of Western Philosophy which became enormously popular, and in 1950 he was awarded the Nobel Prize in Literature. Russell's many appearances on the BBC also helped to promote the public understanding of ideas.With: AC Grayling Master of the New College of the Humanities and a Supernumerary Fellow of St Anne's College, OxfordMike Beaney Professor of Philosophy at the University of York Hilary Greaves Lecturer in Philosophy and Fellow of Somerville College, Oxford Producer: Victoria Brignell.

Melvyn Bragg and his guests discuss the history of crystallography, the study of crystals and their structure. The discovery in the early 20th century that X-rays could be diffracted by a crystal revolutionised our knowledge of materials. This crystal technology has touched most people's lives, thanks to the vital role it plays in diverse scientific disciplines - from physics and chemistry, to molecular biology and mineralogy. To date, 28 Nobel Prizes have been awarded to scientists working with X-ray crystallography, an indication of its crucial importance. The history of crystallography began with the work of Johannes Kepler in the 17th century, but perhaps the most crucial leap in understanding came with the work of the father-and-son team the Braggs in 1912. They built on the work of the German physicist Max von Laue who had proved that X-rays are a form of light waves and that it was possible to scatter these rays using a crystal. The Braggs undertook seminal experiments which transformed our perception of crystals and their atomic arrangements, and led to some of the most significant scientific findings of the last century - such as revealing the structure of DNA. With:Judith Howard Director of the Biophysical Sciences Institute and Professor of Chemistry at the University of DurhamChris Hammond Life Fellow in Material Science at the University of LeedsMike Glazer Emeritus Professor of Physics at the University of Oxford and Visiting Professor of Physics at the University of WarwickProducer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the Borgias, the most notorious family in Renaissance Italy. Famed for their treachery and corruption, the Borgias produced two popes during their time of dominance in Rome in the late 15th century. The most well-known of these two popes is Alexander VI, previously Cardinal Rodrigo Borgia. He was accused of buying votes to elect him to the papacy and openly promoted his children in positions of power. Rodrigo's daughter, Lucrezia, is widely remembered as a ruthless poisoner; his son, Cesare, as a brutal soldier. Murder, intrigue and power politics characterised their rule, but many of the stories now told about their depraved behaviour and evil ways emerged after their demise and gave rise to the so-called 'Black Legend'. The sullied reputation of the Borgia dynasty endures even today and their lives have provided a major theme for plays, novels and over forty films.With:Evelyn Welch Professor of Renaissance Studies at Queen Mary, University of LondonCatherine Fletcher Lecturer in Public History at the University of SheffieldChristine Shaw Honorary Research Fellow at Swansea University Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the French philosopher and social activist Simone Weil. Born in Paris in 1909 into a wealthy, agnostic Jewish family, Weil was a precocious child and attended the prestigious Ecole Normale Superieure in Paris, achieving the top marks in her class (Simone de Beauvoir came second). Weil rejected her comfortable background and chose to work in fields and factories to experience the life of the working classes at first hand. She was acutely sensitive to human suffering and devoted her life to helping those less fortunate than herself. Despite her belief in pacifism she volunteered on the Republican side during the Spanish Civil War and later joined the French Resistance movement in England. Her philosophy was both complex and intense. She argued that the presence of evil and suffering in the world was evidence of God's love and that Man has no right to ask anything of God or of anyone whom they love. Love which expects reward was not love at all in Weil's eyes. Weil died of TB in Kent at the age of only 34. Her strict lifestyle and self-denial may have contributed to her early death. T.S Eliot said "she was not just a woman of genius, but was a genius akin to that of a saint"; Albert Camus believed she was "the only great spirit of our time." With:Beatrice Han-Pile Professor of Philosophy at the University of EssexStephen Plant Runcie Fellow and Dean of Trinity Hall at the University of CambridgeDavid Levy Teaching Fellow in the Department of Philosophy at the University of EdinburghProducer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the Upanishads, the ancient sacred texts of Hinduism. Dating from about 700 BC, the Upanishads were passed down through an oral tradition in priestly castes and were not written down until the 6th century AD. They constitute the final part of the Vedas, the collection of texts which form the foundation of the Indian Hindu world, and were originally spoken during sacrificial rituals.Yet the Upanishads go beyond incantations performed during sacrifices, and ask profound questions about human existence and man's place in the cosmos. The concepts of Brahman (the universal cosmic power) and Atman (the deeper soul of the individual) are central to the understanding of the Upanishads. Each individual treatise has its own character. Some are poetic; some are scientific; others are dialogues between kings and sages or metaphysical reflections. More than one hundred Upanishads were produced, thirteen of which are regarded as the canonical scriptures of Hinduism.With:Jessica Frazier Lecturer in Religious Studies at the University of Kent and a Research Fellow at the Oxford Centre for Hindu Studies at the University of OxfordChakravarthi Ram-Prasad Professor of Comparative Religion and Philosophy at Lancaster UniversitySimon Brodbeck Lecturer in Religious Studies at the University of CardiffProducer: Natalia Fernandez.

Melvyn Bragg and his guests discuss The Anarchy, the civil war that took place in mid-twelfth century England. The war began as a succession dispute between the Empress Matilda, daughter of Henry I, and her cousin, Stephen of Blois. On Henry's death Stephen seized the English throne and held it for a number of years before Matilda wrestled it from him, although she was chased out of London before she could be crowned. The Anarchy dragged on for nearly twenty years and is so called because of the chaos and lawlessness that characterised the period. Yet only one major battle ever took place, the Battle of Lincoln in 1141, and any other fighting associated with the conflict was fairly localised. This has led historians to question the accuracy of labelling the civil war as The Anarchy, a name only bestowed on the era in the 19th century. But why did Matilda fail to become the monarch, and what impact did it have on the way England was ruled in centuries to come?With: John Gillingham Emeritus Professor of History at the London School of Economics and Political ScienceLouise Wilkinson Reader in Medieval History at Canterbury Christ Church UniversityDavid Carpenter Professor of Medieval History at Kings College London. Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss Fermat's Last Theorem. In 1637 the French mathematician Pierre de Fermat scribbled a note in the margin of one of his books. He claimed to have proved a remarkable property of numbers, but gave no clue as to how he'd gone about it. "I have found a wonderful demonstration of this proposition," he wrote, "which this margin is too narrow to contain". Fermat's theorem became one of the most iconic problems in mathematics and for centuries mathematicians struggled in vain to work out what his proof had been. In the 19th century the French Academy of Sciences twice offered prize money and a gold medal to the person who could discover Fermat's proof; but it was not until 1995 that the puzzle was finally solved by the British mathematician Andrew Wiles. With:Marcus du Sautoy Professor of Mathematics & Simonyi Professor for the Public Understanding of Science at the University of OxfordVicky Neale Fellow and Director of Studies in Mathematics at Murray Edwards College at the University of CambridgeSamir Siksek Professor at the Mathematics Institute at the University of Warwick.Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the life and influence of William Caxton, the merchant who brought the printing press to the British Isles. After spending several years working as a printer in Bruges, Caxton returned to London and in 1476 set up his first printing press in Westminster, and also imported and sold other printed books. Caxton concentrated on producing popular books that he knew would sell, such as Chaucer's 'Canterbury Tales' and small liturgical 'books of hours'. The standard of Caxton's printing may have lagged behind that on the continent, but he was a skilful businessman and unusually for printers at the time, he managed not to go bankrupt. The advent of print is now seen as one of the great revolutions in intellectual history - although many scholars believe it was a revolution that took many generations to have an effect.With:Richard Gameson Professor of the History of the Book at the University of DurhamJulia Boffey Professor of Medieval Studies in the English Department at Queen Mary, University of LondonDavid Rundle Member of the History Faculty at the University of OxfordProducer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the life and achievements of Hannibal. One of the most celebrated military leaders in history, Hannibal was the Carthaginian general who led an entire army, complete with elephants, across the Alps in order to attack the Roman Republic. He lived at a time of prolonged hostility between the two great Mediterranean powers, Rome and Carthage, and was the Carthaginians' inspirational leader during the Second Punic War which unfolded between 218 and 202 BC. His career ended in defeat and exile, but he achieved such fame that even his enemies the Romans erected statues of him. Centuries later his tactical genius was admired and studied by generals including Napoleon and Wellington.With:Ellen O'Gorman Senior Lecturer in Classics at the University of BristolMark Woolmer Senior Tutor in the Department of Classics and Ancient History at the University of DurhamLouis Rawlings Senior Lecturer in Ancient History at Cardiff University.Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the medieval scholar Gerald of Wales. Born around the middle of the twelfth century, Gerald was a cleric and courtier. For much of his life he was close to Henry II and the Church hierarchy, and wrote accounts of official journeys he made around Wales and Ireland in their service. Both Anglo-Norman and Welsh by parentage, he had a unique perspective on the political strife of his age. Gerald's Journey Around Wales and Description of Ireland are among the most colourful and informative chronicles of the Middle Ages, and had a powerful influence on later historians.With:Henrietta Leyser Emeritus Fellow of St Peter's College, University of OxfordMichelle Brown Professor Emerita of Medieval Manuscript Studies at the School of Advanced Study, University of LondonHuw Pryce Professor of Welsh History at Bangor UniversityProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Ontological Argument. In the eleventh century St Anselm of Canterbury proposed that it was possible to prove the existence of God using reason alone. His argument was ridiculed by some of his contemporaries, but was analysed and improved by later thinkers including Descartes, Spinoza and Leibniz. Other philosophers have been less kind, with the Enlightenment thinker David Hume offering one possible refutation. But the debate continued, fuelled by interventions from such heavyweights as Immanuel Kant and Kurt Gödel; and it remains one of the most discussed problems in philosophy.With:John Haldane Professor of Philosophy at the University of St AndrewsPeter Millican Professor of Philosophy at the University of OxfordClare Carlisle Lecturer in Philosophy of Religion at King's College LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Druids, the priests of ancient Europe. Active in Ireland, Britain and Gaul, the Druids were first written about by Roman authors including Julius Caesar and Pliny, who described them as wearing white robes and cutting mistletoe with golden sickles. They were suspected of leading resistance to the Romans, a fact which eventually led to their eradication from ancient Britain. In the early modern era, however, interest in the Druids revived, and later writers reinvented and romanticised their activities. Little is known for certain about their rituals and beliefs, but modern archaeological discoveries have shed new light on them.With:Barry Cunliffe Emeritus Professor of Archaeology at the University of OxfordMiranda Aldhouse-Green Professor of Archaeology at Cardiff UniversityJustin Champion Professor of the History of Early Modern Ideas at Royal Holloway, University of LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the cell, the fundamental building block of life. First observed by Robert Hooke in 1665, cells occur in nature in a bewildering variety of forms. Every organism alive today consists of one or more cells: a single human body contains up to a hundred trillion of them. The first life on Earth was a single-celled organism which is thought to have appeared around three and a half billion years ago. That simple cell resembled today's bacteria. But eventually these microscopic entities evolved into something far more complex, and single-celled life gave rise to much larger, complex multicellular organisms. But how did the first cell appear, and how did that prototype evolve into the sophisticated, highly specialised cells of the human body?With:Steve Jones Professor of Genetics at University College LondonNick Lane Senior Lecturer in the Department of Genetics, Evolution and Environment, University College LondonCathie Martin Group Leader at the John Innes Centre and Professor in the School of Biological Sciences at the University of East AngliaProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Hadrian's Wall, the largest Roman structure and one of the most important archaeological monuments in Britain. Stretching for eighty miles from the mouth of the River Tyne to the Solway Firth and classified today as a World Heritage Site, it has been a source of fascination ever since it came into existence. It was built in about 122 AD by the Emperor Hadrian, and a substantial part of it still survives today. Although its construction must have entailed huge cost and labour, the Romans abandoned it within twenty years, deciding to build the Antonine Wall further north instead. Even after more than a century of excavations, many mysteries still surround Hadrian's Wall, including its exact purpose. Did it have a meaningful defensive role or was it mainly a powerful emperor's vanity project? With: Greg Woolf Professor of Ancient History at the University of St AndrewsDavid Breeze Former Chief Inspector of Ancient Monuments for Scotland and Visiting Professor of Archaeology at the University of DurhamLindsay Allason-Jones Former Reader in Roman Material Culture at the University of NewcastleProducer: Victoria Brignell.

Melvyn Bragg and his guests discuss Scepticism, the idea that it may be impossible to know anything with complete certainty. Scepticism was first outlined by ancient Greek philosophers: Socrates is reported to have said that the only thing he knew for certain was that he knew nothing. Later, Scepticism was taught at the Academy founded by Plato, and learnt by students who included the Roman statesman Cicero. The central ideas of Scepticism were taken up by later philosophers and came to the fore during the Renaissance, when thinkers including Rene Descartes and Michel de Montaigne took up its challenge. A central plank of the philosophical system of David Hume, Scepticism had a powerful influence on the religious and scientific debates of the Enlightenment.With:Peter Millican Professor of Philosophy at Hertford College, OxfordMelissa Lane Professor of Politics at Princeton UniversityJill Kraye Professor of the History of Renaissance Philosophy and Librarian at the Warburg Institute, University of London. Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the life and work of the Arab philosopher al-Kindi. Born in the early ninth century, al-Kindi was heavily influenced by Greek philosophy and supervised the translation of many works by Aristotle and others into Arabic. The author of more than 250 works, he wrote on many different subjects, from optics to mathematics, music and astrology. He was the first significant thinker to argue that philosophy and Islam had much to offer each other and need not be kept apart. Today al-Kindi is regarded as one of the greatest scholars of the medieval Islamic world.With:Hugh Kennedy Professor of Arabic at SOAS, University of LondonJames Montgomery Sir Thomas Adams's Professor of Arabic Elect at the University of CambridgeAmira Bennison Senior Lecturer in Middle Eastern and Islamic Studies at the University of Cambridge.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the life of the prominent 19th-century social reformer Annie Besant. Born in 1847, Annie Besant espoused a range of causes including secularism, women's rights, Socialism, Irish Home Rule, birth control and better conditions for workers. Described by Beatrice Webb as having "the voice of a beautiful soul", Besant became an eloquent public speaker as well as writing numerous campaigning articles and pamphlets. She is perhaps most famous for the key role she played in the successful strike by female workers at the Bryant and May match factory in East London in 1888, which brought the appalling working conditions of many factory workers to greater public attention. Later in life she became a follower of theosophy, a belief system bringing together elements of Hinduism, Buddhism and other Eastern religions. She moved to India, its main base, and took on a leading role in the Indian self-rule movement, being appointed the first female president of the Indian National Congress in 1917. With: Lawrence Goldman Fellow in Modern History at St Peter's College, University of OxfordDavid Stack Reader in History at the University of Reading Yasmin Khan Senior Lecturer in Politics and International Relations at Royal Holloway, University of London. Producer: Victoria Brignell.

Melvyn Bragg and his guests discuss James Joyce's novel Ulysses. First published ninety years ago in Paris, Joyce's masterpiece is a sprawling and startlingly original work charting a single day in the life of the Dubliner Leopold Bloom. Some early readers were outraged by its sexual content and daringly scatalogical humour, and the novel was banned in most English-speaking countries for a decade after it first appeared. But it was soon recognised as a genuinely innovative work: overturning the ban on its publication, an American judge described Ulysses as "a sincere and serious attempt to devise a new literary method for the observation and description of mankind."Today Ulysses is widely regarded as the greatest example of literary modernism, and a work that changed literature forever. It remains one of the most discussed novels ever written.Steven ConnorProfessor of Modern Literature and Theory at Birkbeck, University of LondonJeri JohnsonSenior Fellow in English at Exeter College, OxfordRichard BrownReader in Modern English Literature at the University of LeedsProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the biblical king Solomon, celebrated for his wisdom and as the architect of the First Temple in Jerusalem. According to the Old Testament account of his life, Solomon was chosen as his father David's successor as Israelite king, and instead of praying for long life or wealth asked God for wisdom. In the words of the Authorised Version, "And there came of all people to hear the wisdom of Solomon, from all kings of the earth, which had heard of his wisdom." Solomon is an important figure in Judaism, Islam and Christianity alike, and is also credited with the authorship of several scriptural texts. His name is associated with the tradition of wisdom literature and with a large number of myths and legends. For many centuries Solomon was seen as the archetypal enlightened monarch, and his example influenced notions of kingship from the Middle Ages onwards.With:Martin PalmerDirector of the International Consultancy on Religion, Education, and CulturePhilip AlexanderEmeritus Professor of Jewish Studies at the University of ManchesterKatharine DellSenior Lecturer in Old Testament Studies at the University of Cambridge, and Fellow of St Catherine's College, CambridgeProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Trojan War, one of the best known events of Greek mythology. According to the traditional version of the story, the war began when a Trojan prince, Paris, eloped with the Spartan queen Helen. A Greek army besieged Troy for ten years before the city was finally overrun and destroyed. Some of the most familiar names of Greek mythology are associated with the war, including Achilles and Hector, Odysseus and Helen of Troy - and it has also given us the story of the Trojan Horse.The war is the backdrop for Homer's epic poem The Iliad, and features in many other works from classical antiquity. For centuries it was assumed to be a mythical event. But in the nineteenth century a series of archaeological discoveries provided startling evidence that Troy might really have existed, leading some scholars to conclude that there could even be some truth behind the myth. So does the Trojan War story have any basis in fact? And why has it proved such an enduring legend?With:Edith HallProfessor of Classics at King's College LondonEllen AdamsLecturer in Classical Art and Archaeology at King's College LondonSusan SherrattLecturer in Archaeology at the University of SheffieldProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the celebrated Venetian explorer Marco Polo. In 1271 Polo set off on an epic journey through Asia. He was away for more than twenty years, and when he returned to Venice he told extraordinary tales of his adventures. He had visited the court of the Mongol Emperor Kublai Khan, and acted as his emissary, travelling through many of the remote territories of the Far East. An account of Marco Polo's travels was written down by his contemporary Rustichello da Pisa, a romance writer he met after being imprisoned during a war against the neighbouring Genoese.The Travels of Marco Polo was one of the most popular books produced in the age before printing. It was widely translated, and many beautifully illustrated editions made their way to the collections of the rich and educated. It was much read by later travellers, and Polo's devotees included Christopher Columbus and Henry the Navigator. For centuries it was seen as the first and best account of life in the mysterious East; but today the accuracy and even truth of Marco Polo's work is often disputed.With:Frances WoodLead Curator of Chinese Collections at the British LibraryJoan Pau RubiesReader in International History at the London School of Economics and Political ScienceDebra Higgs StricklandSenior Lecturer in the History of Art at the University of GlasgowProducer: Thomas Morris.

Melvyn Bragg and his guests discuss On War, a treatise on the theory and practice of warfare written by the Prussian soldier and intellectual Carl von Clausewitz. First published in 1832, Clausewitz's magnum opus is commonly regarded as the most important book about military theory ever written. Informed by its author's experience of fighting against the mighty armies of Napoleon, the work looks not just at the practicalities of warfare, but offers a subtle philosophical analysis of the nature of war and its relationship with politics. Notions such as the Clausewitzian Trinity have had an enormous effect on later military leaders. But its influence is felt today not just on the battlefield but also in politics and business.With:Saul DavidProfessor of War Studies at the University of BuckinghamHew StrachanChichele Professor of the History of War at the University of OxfordBeatrice HeuserProfessor of International Relations at the University of Reading.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss game theory, the mathematical study of decision-making. First formulated in the 1940s, the discipline entails devising 'games' to simulate situations of conflict or cooperation. It allows researchers to unravel decision-making strategies, and even to establish why certain types of behaviour emerge. Some of the games studied in game theory have become well known outside academia - they include the Prisoner's Dilemma, an intriguing scenario popularised in novels and films, and which has inspired television game shows. Today game theory is seen as a vital tool in such diverse fields as evolutionary biology, economics, computing and philosophy. With:Ian StewartEmeritus Professor of Mathematics at the University of WarwickAndrew ColmanProfessor of Psychology at the University of LeicesterRichard BradleyProfessor of Philosophy at the London School of Economics and Political Science.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss Voltaire's novel Candide. First published in 1759, the novel follows the adventures of a young man, Candide, and his mentor, the philosopher Pangloss. Candide was written in the aftermath of a major earthquake in Lisbon and the outbreak of the Seven Years' War, events which caused such human suffering that they shook many people's faith in a benevolent God. Voltaire's masterpiece piles ridicule on Optimism, the fashionable philosophical belief that such disasters are part of God's plan for humanity - that 'all is for the best in this best of all possible worlds'.Often uproariously funny, the novel is a biting satire whose other targets include bad literature, extremist religion and the vanity of kings and politicians. It captivated contemporary readers and has proved one of French literature's most enduring classics.With:David WoottonAnniversary Professor of History at the University of YorkNicholas CronkProfessor of French Literature and Director of the Voltaire Foundation at the University of OxfordCaroline WarmanLecturer in French and Fellow of Jesus College at the University of Oxford.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Battle of Bosworth Field, the celebrated encounter between Lancastrian and Yorkist forces in August 1485. The battle, the penultimate of the Wars of the Roses, resulted in the death of Richard III. The victory of Henry Tudor enabled him to succeed Richard as monarch and establish the Tudor dynasty which was to rule for over a century. These events were immortalised by Shakespeare in Richard III, and today the battle is regarded as one of the most important to have taken place on English soil. But little is known about what happened on the battlefield, and the very location of the encounter remains the subject of much debate.With:Anne CurryProfessor of Medieval History and Dean of Humanities at the University of SouthamptonSteven GunnTutor and Fellow in Modern History at Merton College, OxfordDavid GrummittLecturer in British History at the University of Kent.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss Neoplatonism, the school of thought founded in the 3rd century AD by the philosopher Plotinus. Born in Egypt, Plotinus was brought up in the Platonic tradition, studying and reinterpreting the works of the Greek thinker Plato. After he moved to Rome Plotinus became the most influential member of a group of thinkers dedicated to Platonic scholarship. The Neoplatonists - a term only coined in the nineteenth century - brought a new religious sensibility to bear on Plato's thought. They outlined a complex cosmology which linked the human with the divine, headed by a mysterious power which they called the One. Neoplatonism shaped early Christian, Jewish and Muslim religious scholarship, and remained a dominant force in European thought until the Renaissance. With:Angie HobbsAssociate Professor of Philosophy and Senior Fellow in the Public Understanding of Philosophy at the University of WarwickPeter AdamsonProfessor of Ancient and Medieval Philosophy at King's College LondonAnne SheppardProfessor of Ancient Philosophy at Royal Holloway, University of LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the emergence of geology as a scientific discipline. A little over two hundred years ago a small group of friends founded the Geological Society of London. This organisation was the first devoted to furthering the discipline of geology - the study of the Earth, its history and composition. Although geology only emerged as a separate area of study in the late eighteenth century, many earlier thinkers had studied rocks, fossils and the materials from which the Earth is made. Ancient scholars in Egypt and Greece speculated about the Earth and its composition. And in the Renaissance the advent of mining brought further insight into the nature of objects found underground and how they got there. But how did such haphazard study of rocks and fossils develop into a rigorous scientific discipline?With:Stephen PumfreySenior Lecturer in the History of Science at Lancaster UniversityAndrew ScottProfessor of Applied Palaeobotany at Royal Holloway, University of LondonLeucha VeneerResearch Associate at the Centre for the History of Science, Technology and Medicine at the University of Manchester.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the origins of Quakerism. In the mid-seventeenth century an itinerant preacher, George Fox, became the central figure of a group known as the Religious Society of Friends, whose members believed it was possible to obtain contact with Christ without priestly intercession. The Quakers, as they became known, rejected the established Church and what they saw as the artificial pomp and artifice of its worship. They argued for religious toleration and for the equality of men and women. Persecuted for many years, particularly after the Restoration of Charles II in 1660, the Quakers survived to become an influential religious group, known for their pacifism and philanthropy. With:Justin ChampionProfessor of the History of Early Modern Ideas at Royal Holloway, University of LondonJohn CoffeyProfessor of Early Modern History at the University of LeicesterKate PetersFellow in History at Murray Edwards College at the University of Cambridge.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the measurement of time. Early civilisations used the movements of heavenly bodies to tell the time, but even in the ancient world more sophisticated timekeeping devices such as waterclocks were known. The development of mechanical clocks in Europe emerged in the medieval period when monks used such devices to sound an alarm to signal it was the hour to pray, although these clocks did not tell them the time. For hundreds of years clocks were inaccurate and it proved hard to remedy the problems, let alone settle on a standard time that the country should follow. It was with the advent of the railways that time finally became standardised in Britain in the mid-19th century and only in 1884 that Greenwich became the prime meridian of the world. Atomic clocks now mark the passing of the days, hours, and minutes and they are capable of keeping time to a second in 15 million years. With:Kristen LippincottFormer Director of the Royal Observatory, GreenwichJim BennettDirector of the Museum of the History of Science at the University of OxfordJonathan BettsSenior Curator of Horology at the Royal Observatory, GreenwichProducer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the work and influence of the eighteenth-century philosopher Moses Mendelssohn. A prominent figure at the court of Frederick the Great, Mendelssohn was one of the most significant thinkers of his age. He came from a humble, but culturally rich background and his obvious intelligence was recognised from a young age and nurtured by the local rabbi where he lived in the town of Dessau in Prussia. Moses's learning earned him the sobriquet of the 'German Socrates' and he is considered to be one of the principal architects of the Haskala, the Jewish Enlightenment, and widely regarded as having helped bring Judaism into the mainstream of European culture. Mendelssohn is perhaps best remembered today for his efforts to bring Jewish and German culture closer together and for his plea for religious toleration.With:Christopher ClarkProfessor of Modern European History at the University of CambridgeAbigail GreenTutor and Fellow in History at the University of OxfordAdam SutcliffeSenior Lecturer in European History at King's College, London Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss Vitruvius' De Architectura. Written almost exactly two thousand years ago, Vitruvius' work is a ten-volume treatise on engineering and architecture, the only surviving work on the subject from the ancient world. This fascinating book offers unique insights into Roman technology and contains discussion of the general principles of architecture, the training of architects and the design of temples, houses and public buildings.The rediscovery of this seminal treatise in the 15th century provided the impetus for the neoclassical architectural movement, and Vitruvius exerted a significant influence on the work of Renaissance architects including Palladio, Brunelleschi and Alberti. It remains a hugely important text today, two millennia after it was written.With:Serafina CuomoReader in Roman History at Birkbeck, University of LondonRobert TavernorEmeritus Professor of Architecture and Urban Design at the London School of EconomicsAlice KoenigLecturer in Latin and Classical Studies at the University of St Andrews.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss Lyrical Ballads, the collection of poems by William Wordsworth and Samuel Coleridge first published in 1798. The work was conceived as an attempt to cast off the stultifying conventions of formal 18th-century poetry. Wordsworth wrote that the poems it contains should be "considered as experiments. They were written chiefly with a view to ascertain how far the language of conversation in the middle and lower classes of society is adapted to the purpose of poetic pleasure."Lyrical Ballads contains some of the best-known work by Coleridge and Wordsworth, including The Rime of the Ancient Mariner and Tintern Abbey - and is today seen as a point of radical departure for poetry in English.With:Judith HawleyProfessor of Eighteenth-Century Literature at Royal Holloway, University of LondonJonathan BateProvost of Worcester College, OxfordPeter SwaabReader in English Literature at University College London.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the life and work of Benjamin Franklin. A printer, statesman, diplomat, writer and scientist, Franklin was one of the most remarkable individuals of the eighteenth century. His discoveries relating to the nature of electricity, and in particular a celebrated experiment which involved flying a kite in a thunderstorm, made him famous in Europe and America. His inventions include bifocal spectacles, and a new type of stove. In the second half of his life he became prominent as a politician and a successful diplomat. As the only Founding Father to have signed all three of the fundamental documents of the United States of America, including its Declaration of Independence and Constitution, Benjamin Franklin occupies a unique position in the history of the nation. With:Simon MiddletonSenior Lecturer in American History at the University of SheffieldSimon NewmanSir Denis Brogan Professor of American History at the University of GlasgowPatricia FaraSenior Tutor at Clare College, University of Cambridge.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the physics of electrical conduction. Although electricity has been known for several hundred years, it was only in the early twentieth century that physicists first satisfactorily explained the phenomenon. Electric current is the passage of charged particles through a medium - but a material will only conduct electricity if its atomic structure enables it to do so. In investigating electrical conduction scientists discovered two new classes of material. Semiconductors, first exploited commercially in the 1950s, have given us the transistor, the solar cell and the silicon chip, and have revolutionised telecommunications. And superconductors, remarkable materials first observed in 1911, are used in medical imaging and at the Large Hadron Collider in Geneva. With:Frank CloseProfessor of Physics at the University of OxfordJenny NelsonProfessor of Physics at Imperial College LondonLesley CohenProfessor of Solid State Physics at Imperial College LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the An Lushan Rebellion, a major uprising against the imperial rule of the Chinese Tang Dynasty. In 755 AD a senior general, An Lushan, orchestrated a plot against Emperor Xuanzong, taking the regime's capital city before declaring a rival dynasty in northern China. The rebellion lasted eight years but was eventually put down by Tang forces. Although the dynasty's authority was restored, it never regained the prosperity of previous generations. The An Lushan Rebellion displaced millions of people and killed many more. It changed the relationship between the Chinese state and neighbouring powers; but it also left a rich cultural legacy in the poetry memorialising this seismic event.With:Frances WoodLead Curator of Chinese at the British LibraryNaomi StandenProfessor of Medieval History at the University of BirminghamHilde de WeerdtFellow and Lecturer in Chinese History at Pembroke College, Oxford.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the life and work of the Dutch humanist scholar Desiderius Erasmus. In his lifetime Erasmus was almost universally recognised as the greatest classical scholar of his age, the translator and editor of numerous Latin and Greek texts. But above all he was a religious scholar who published important editions of the Bible which expunged many corruptions to the texts of the Scriptures. He was an outspoken critic of the Church, whose biting satire on its excesses, In Praise of Folly, was famed throughout Europe.When the Reformation began in 1517, however, Erasmus chose to remain a member of the Catholic Church rather than side with Martin Luther and the reformers, and a few years later he engaged in a celebrated debate with Luther on the subject of free will. Through his writings on the Church, on education and the wide gamut of humanist scholarship, Erasmus is remembered today as one of the greatest thinkers of the northern Renaissance.With:Diarmaid MacCullochProfessor of the History of the Church at the University of OxfordEamon DuffyProfessor of the History of Christianity at the University of CambridgeJill KrayeProfessor of the History of Renaissance Philosophy and Librarian at the Warburg Institute, University of London.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Kama Sutra, one of the most celebrated and often misunderstood texts of Indian literature. Probably composed during the reign of the Gupta dynasty around 1800 years ago, the work is a collection of writings about the art of love and sensual pleasure. Although it is best known today for a single chapter devoted to sexual pleasure, this important Sanksrit collection contains much besides. In particular it teaches the attainment of Kama (pleasure), one of the central goals of Hinduism. The Kama Sutra is a manual to a life of fulfilment, offering advice on such subjects as finding a spouse and how to behave in marriage; it has had a profound influence on Indian culture and thought. With:Julius LipnerProfessor of Hinduism and the Comparative Study of Religion at the University of CambridgeJessica FrazierLecturer in Religious Studies at the University of Kent and Research Fellow at the Oxford Centre for Hindu StudiesDavid SmithReader in South Asian Religions at the University of Lancaster.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the evolution of the Scientific Method, the systematic and analytical approach to scientific thought. In 1620 the great philosopher and scientist Francis Bacon published the Novum Organum, a work outlining a new system of thought which he believed should inform all enquiry into the laws of nature. Philosophers before him had given their attention to the reasoning that underlies scientific enquiry; but Bacon's emphasis on observation and experience is often seen today as giving rise to a new phenomenon: the scientific method.The scientific method, and the logical processes on which it is based, became a topic of intense debate in the seventeenth century, and thinkers including Isaac Newton, Thomas Huxley and Karl Popper all made important contributions. Some of the greatest discoveries of the modern age were informed by their work, although even today the term 'scientific method' remains difficult to define.With: Simon SchafferProfessor of the History of Science at the University of CambridgeJohn WorrallProfessor of the Philosophy of Science at the London School of Economics and Political ScienceMichela MassimiSenior Lecturer in the Philosophy of Science at University College London.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss 1848, the year that saw Europe engulfed in revolution. Across the continent, from Paris to Palermo, liberals rose against conservative governments. The first stirrings of rebellion came in January, in Sicily; in February the French monarchy fell; and within a few months Germany, Austria, Hungary and Italy had all been overtaken by revolutionary fervour. Only a few countries, notably Britain and Russia, were spared.The rebels were fighting for nationalism, social justice and civil rights, and were prepared to fight in the streets down to the last man. Tens of thousands of people lost their lives; but little of lasting value was achieved, and by the end of the year the liberal revolutions had been soundly beaten.With: Tim BlanningEmeritus Professor of History at the University of CambridgeLucy RiallProfessor of History at Birkbeck, University of LondonMike RapportSenior Lecturer in History at the University of Stirling.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Safavid Dynasty, rulers of the Persian empire between the 16th and 18th centuries.In 1501 Shah Ismail, a boy of fifteen, declared himself ruler of Azerbaijan. Within a year he had expanded his territory to include most of Persia, and founded a ruling dynasty which was to last for more than two hundred years. At the peak of their success the Safavids ruled over a vast territory which included all of modern-day Iran. They converted their subjects to Shi'a Islam, and so created the religious identity of modern Iran - although they were also often ruthless in their suppression of Sunni practices. They thrived on international trade, and their capital Isfahan, rebuilt by the visionary Shah Abbas, became one of the most magnificent cities in the world. Under Safavid rule Persia became a cultural centre, producing many great artists and thinkers. With:Robert GleaveProfessor of Arabic Studies at the University of ExeterEmma LoosleySenior Lecturer at the School of Arts, Histories and Cultures at the University of ManchesterAndrew NewmanReader in Islamic Studies and Persian at the University of Edinburgh.Producer: Thomas Morris.

Melvyn Bragg and guests discuss the giant molecules that form the basis of all life. Macromolecules, also known as polymers, are long chains of atoms. They form the proteins that make up our bodies, as well as many of the materials of modern life. Man's ability to mimic the structure of macromolecules has led to the invention of plastics such as nylon, paints and adhesives. Most of our clothes are made of macromolecules, and our food is macromolecular. The medical sciences are making increasingly sophisticated use of macromolecules, from growing replacement skin and bone to their increasing use in drug delivery. One of the most famous macromolecules is DNA, an infinitely more complex polymer than man has ever managed to produce. We've only known about macromolecules for just over a century, so what is the story behind them and how might they change our lives in the future?With:Tony RyanPro-Vice Chancellor for the Faculty of Science at the University of SheffieldAthene DonaldProfessor of Experimental Physics at the University of Cambridge and a Fellow of Robinson CollegeCharlotte WilliamsReader in Polymer Chemistry and Catalysis at Imperial College, London Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss Daniel Defoe's novel Robinson Crusoe. Published in 1719, it was an immediate success and is considered the classic adventure story. There are several incidents that may have inspired the tale, although none of them exactly mirrors Defoe's thrilling yet didactic narrative. The plot is now universally known - the sailor stranded on a desert island who learns to tame the environment and the native population. The character of Friday, Crusoe's trusty companion and servant, has become almost as famous as Crusoe himself and their master-servant relationship forms one of the principal themes in the novel. Robinson Crusoe has been interpreted in myriad ways, from colonial fable to religious instruction manual to capitalist tract; although arguably above all of these, it is perhaps best known today as a children's story. With:Karen O'BrienPro-Vice Chancellor for Education at the University of Birmingham Judith HawleyProfessor of Eighteenth-Century Literature at Royal Holloway, University of LondonBob OwensEmeritus Professor of English Literature at the Open UniversityProducer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the Concordat of Worms. This treaty between the papacy and the Holy Roman Empire, signed in 1122, put an end, at least for a time, to years of power struggle and bloodshed. The wrangling between the German kings and the Church over who had the ultimate authority to elect bishops, use the ceremonial symbols of office in his coronation and even choose the pope himself, was responsible for centuries of discord. The hatred between the two parties reached such a pinnacle that it resulted in the virtual destruction of Rome at the hands of the Normans in 1084.Nearly forty years later Emperor Henry V and Pope Calixtus II came to a compromise; their agreement became known as the Concordat of Worms, named after the town where they met and signed the treaty. The Concordat created a historic distinction between secular power and spiritual authority, and more clearly defined the respective powers of monarchs and the Church. Although in the short term the Concordat failed to prevent further conflict, some historians believe that it paved the way for the modern nation-state.With:Henrietta LeyserEmeritus Fellow of St Peter's College, University of OxfordKate CushingReader in Medieval History at Keele University John Gillingham Emeritus Professor of History at the London School of Economics and Political Science Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the ancient Greek philosopher Heraclitus. Writing in the 5th century BC, Heraclitus believed that everything is constantly changing or, as he put it, in flux. He expressed this thought in a famous epigram: "No man ever steps into the same river twice." Heraclitus is often considered an enigmatic thinker, and much of his work is complex and puzzling. He was critical of the poets Homer and Hesiod, whom he considered to be ignorant, and accused the mathematician Pythagoras (who may have been his contemporary) of making things up. Heraclitus despaired of men's folly, and in his work constantly strove to encourage people to consider matters from alternative perspectives. Donkeys prefer rubbish to gold, he observed, pointing out that the same thing can have different meanings to different people.Unlike most of his contemporaries he was not associated with a particular school or disciplinary approach, although he did have his followers. At times a rationalist, at others a mystic, Heraclitus is an intriguing figure who influenced major later philosophers and movements such as Plato and the Stoics.With:Angie HobbsAssociate Professor of Philosophy and Senior Fellow in the Public Understanding of Philosophy at the University of WarwickPeter AdamsonProfessor of Ancient and Medieval Philosophy at King's College LondonJames WarrenSenior Lecturer in Classics and a Fellow of Corpus Christi College, University of CambridgeProducer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the life and work of the Victorian poet Christina Rossetti. Rossetti was born into an artistic family and her siblings included Dante Gabriel, one of the leading lights of the Pre-Raphaelite Brotherhood, to whose journal, 'The Germ', Christina contributed poems. She was a devout Anglican all her life and her religious beliefs are a recurring theme in her work. Christina never married, although she was engaged twice - one of her fiancés was the Pre-Raphaelite painter, James Collinson. She spent her time writing and volunteering for charitable works. It is said she even considered going to the Crimea with Florence Nightingale, but in the end ill health prevented her from doing so. Best known for her ballads and long narrative poems, she also wrote some prose and children's verses. Christina was admired by contemporaries including Swinburne, Tennyson and Elizabeth Barrett Browning. Her work was to have an influence on later writers such as Virginia Woolf and Gerard Manley Hopkins. Rossetti's poetry has a spirituality and sensitivity that has led to her redisovery in recent decades, not least by feminist critics who praise her powerful and independent poetic voice. With:Dinah BirchProfessor of English Literature and Pro-Vice Chancellor for Research at Liverpool University Rhian WilliamsLecturer in Nineteenth-Century English Literature at the University of GlasgowNicholas ShrimptonEmeritus Fellow of Lady Margaret Hall, University of Oxford Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the revolutionary Jewish leader Judas Maccabeus. Born in the second century BC, Judas led his followers, the Maccabees, in a rebellion against the Seleucid Empire, which was attempting to impose the Greek culture and religion on the Jews. After a succession of battles he succeeded and the Seleucid king granted the Jews religious freedom. But even after that freedom was granted the struggle for political independence continued, and it was not until twenty years after Judas's death that Judaea finally became an independent state. Thanks to an extensive, if often confused, historical record of these events, the story of the Maccabees is well known. Judas Maccabeus has become a celebrated folk hero, and one of his achievements, the restoration and purification of the Temple of Jerusalem after its desecration by the Seleucids, is commemorated every year at the Jewish festival of Hanukkah.With: Helen Bond, Senior Lecturer in the New Testament at Edinburgh University Tessa Rajak, Emeritus Professor of Ancient History at the University of ReadingPhilip Alexander, Emeritus Professor of Jewish Studies at the University of ManchesterProducer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the ancient Greek astronomer and mathematician Ptolemy, and consider how and why his geocentric theory of the universe held sway for so many centuries. In his seminal astronomical work, the Almagest, written in the 2nd century AD, Ptolemy proposed that the Earth was at the centre of the universe and explained all the observed motions of the Sun, Moon, planets and stars with a system of uniform circular motions which he referred to as 'epicycles'. But Ptolemy was a polymath and did not confine his study of the stars to mathematical equations. He was also interested in astrology and his book on this topic, the Tetrabiblos, tackled the spiritual aspects of the cosmos and its influence on individual lives and personalities.Ptolemy's model of the universe remained the dominant one for over a thousand years. It was not until 1543, and Copernicus's heliocentric theory of the world, that the Ptolemaic model was finally challenged, and not until 1609 that Johannes Kepler's New Astronomy put an end to his ideas for good. But how and why did Ptolemy's system survive for so long?With:Liba TaubProfessor of History and Philosophy of Science at Cambridge UniversityJim BennettDirector of the Museum of the History of Science at the University of OxfordCharles BurnettProfessor of the History of Islamic Influences on Europe at the Warburg Institute, University of LondonProducer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the Continental-Analytic split in Western philosophy. Around the beginning of the last century, philosophy began to go down two separate paths, as thinkers from Continental Europe explored the legacy of figures including Friedrich Nietzsche and Martin Heidegger, while those educated in the English-speaking world tended to look to more analytically-inclined philosophers like Bertrand Russell and Gottlob Frege. But the divide between these two schools of thought is not clear cut, and many philosophers even question whether the term 'Continental' is accurate or useful.The Analytic school favours a logical, scientific approach, in contrast to the Continental emphasis on the importance of time and place. But what are the origins of this split and is it possible that contemporary philosophers can bridge the gap between the two? With:Stephen MulhallProfessor of Philosophy at New College, University of OxfordBeatrice Han-PileProfessor of Philosophy at the University of EssexHans Johann-Glock Professor of Philosophy at the University of ZurichProducer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the origins, science and mythology of the moon. Humans have been fascinated by our only known satellite since prehistory. In some cultures the Moon has been worshipped as a deity; in recent centuries there has been lively debate about its origins and physical characteristics. Although other planets in our solar system have moons ours is, relatively speaking, the largest, and is perhaps more accurately described as a 'twin planet'; the past, present and future of the Earth and the Moon are locked together. Only very recently has water been found on the Moon - a discovery which could prove to be invaluable if human colonisation of the Moon were ever to occur. Mankind first walked on the Moon in 1969, but it is debatable how important this huge political event was in developing our scientific knowledge. The advances of space science, including data from satellites and the moon landings, have given us some startling insights into the history of our own planet, but many intriguing questions remain unanswered. With:Paul MurdinVisiting Professor of Astronomy at Liverpool John Moores UniversityCarolin CrawfordGresham Professor of Astronomy at the University of Cambridge Ian CrawfordReader in Planetary Science and Astrobiology at Birkbeck College, London.Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the Siege of Tenochtitlan. In 1521 the Spanish conquistador Hernan Cortes led an army of Spanish and native forces against the city of Tenochtitlan, the spectacular island capital of the Aztec civilisation. At first Cortes had been welcomed by the Aztec leader, Moctezuma, and he and his men were treated like kings. But their friendship proved short-lived, and soon celebrations turned into vicious fighting. After a prolonged siege and fierce battle, in which many thousands died, the city finally fell. This major confrontation between Old and New Worlds precipitated the downfall of the Aztec Empire, and marked a new phase in European colonisation of the Americas.With:Alan Knight Professor of the History of Latin America at the University of OxfordElizabeth GrahamProfessor of Mesoamerican Archaeology at University College, LondonCaroline Dodds Pennock Lecturer in International History at the University of Sheffield Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss Delacroix's painting Liberty Leading the People. In 1830 revolution once more overtook France, when a popular uprising toppled the French king Charles X. A few months later, the artist Eugene Delacroix immortalised the events of the July Revolution in a painting which remains one of the icons of the age. His allegorical depiction of a Paris barricade, with the figure of Liberty clutching a tricolore while standing on a pile of corpses, is a powerful image which has provoked much debate in the years since it was first unveiled to an enthusiastic public.Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the Ming Voyages. In 1405 a Chinese admiral, Zheng He, set sail with an enormous fleet of ships carrying more than 27,000 people. This was the first of seven voyages of discovery which took Zheng and his ships all over the known world, from India to the Gulf of Persia and as far as East Africa. They took Chinese goods, evidence of the might of the Ming Empire, to the people they visited; and they also returned to China with treasure from the places they visited, and exotic items including a live giraffe. These seven voyages were an expression of the might of the Ming Dynasty; but they were regarded by some Chinese courtiers as a wasteful extravagance, and after internal disputes they came to an end in 1433. These extraordinary journeys live on in the imagination and the historical record - and had a profound effect on China's relationship with the rest of the world.With:Rana MitterProfessor of the History and Politics of Modern China at the University of OxfordJulia LovellLecturer in Chinese History at Birkbeck College, University of LondonCraig ClunasProfessor of the History of Art at the University of Oxford.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the work of the philosopher David Hume. A key figure in the Scottish Enlightenment of the eighteenth century, Hume was an empiricist who believed that humans can only have knowledge of things they have themselves experienced. Hume made a number of significant contributions to philosophy. He saw human nature as a manifestation of the natural world, rather than something above and beyond it. He gave a sceptical account of religion, which caused many to suspect him of atheism. He was also the author of a bestselling History of England. His works, beginning in 1740 with A Treatise of Human Nature, have influenced thinkers from Adam Smith to Immanuel Kant and Charles Darwin, and today he is regarded by some scholars as the most important philosopher ever to write in English.With:Peter MillicanProfessor of Philosophy at the University of OxfordHelen BeebeeProfessor of Philosophy at the University of BirminghamJames HarrisSenior Lecturer in Philosophy at the University of St AndrewsProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Etruscan civilisation.Around 800 BC a sophisticated civilisation began to emerge in the area of Italy now known as Tuscany. The Etruscans thrived for the next eight hundred years, extracting and trading copper and developing a sophisticated culture. They were skilled soldiers, architects and artists, and much of their handiwork survives today. They are also believed to have given us the alphabet, an innovation they imported from Greece. Eventually the Etruscan civilisation was absorbed into that of Rome, but not before it had profoundly influenced Roman art and religion, and even its politics.With:Phil PerkinsProfessor of Archaeology at the Open UniversityDavid RidgwaySenior Research Fellow at the Institute of Classical Studies at the University of LondonCorinna RivaLecturer in Mediterranean Archaeology at University College London.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Japanese belief system Shinto.A religion without gods, scriptures or a founder, Shinto is perhaps better described as a system of belief. Central to it is the idea of kami, spirits or deities associated with places, people and things. Shinto shrines are some of the most prominent features of the landscape in Japan, where over 100 million people - most of the population - count themselves as adherents.Since its emergence as a distinct religion many centuries ago, Shinto has happily coexisted with Buddhism and other religions; in fact, adherents often practise both simultaneously. Although it has changed considerably in the face of political upheaval and international conflict, it remains one of the most significant influences on Japanese culture.With:Martin PalmerDirector of the International Consultancy on Religion, Education, and CultureRichard Bowring Professor of Japanese Studies at the University of CambridgeLucia DolceSenior Lecturer in Japanese Religion and Japanese at the School of Oriental and African Studies, University of London.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Hippocratic Oath. The Greek physician Hippocrates, active in the fifth century BC, has been described as the father of medicine, although little is known about his life and some scholars even argue that he was not one person but several. A large body of work originally attributed to him, the Hippocratic Corpus, was disseminated widely in the ancient world, and contains treatises on a wide variety of subjects, from fractures to medical ethics.Today we know that the Hippocratic Corpus cannot have been written by a single author. But many of its texts shaped Western medicine for centuries. The best known is the Hippocratic Oath, an ethical code for doctors. Celebrated in the ancient world, and later referred to by Arabic scholars, it offers medics guidance on how they should behave. Although it has often been revised and adapted, the Hippocratic Oath remains one of the most significant and best known documents of medical science - but there is little evidence that it was routinely sworn by doctors until modern times. With:Vivian NuttonEmeritus Professor of the History of Medicine at University College LondonHelen KingProfessor of Classical Studies at the Open UniversityPeter PormannWellcome Trust Associate Professor in Classics and Ancient History at the University of WarwickProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Minoan Civilisation.In 1900 the British archaeologist Arthur Evans began excavating some ancient ruins at Knossos on the island of Crete. He uncovered an enormous palace complex which reminded him of the mythical labyrinth of King Minos. Evans had in fact discovered the remnants of a Bronze Age society; in honour of Crete's legendary king he named it the Minoan Civilisation.The Minoans flourished for twelve centuries, and their civilisation was at its height around three and a half thousand years ago, when they built elaborate palaces all over the island. They were sophisticated builders and artists, and appear to have invented one of the world's earliest writing systems. Since Evans's discoveries a hundred years ago, we have learnt much about Minoan society, religion and culture - but much still remains mysterious.With:John BennetProfessor of Aegean Archaeology at Sheffield UniversityEllen AdamsLecturer in Classical Art and Archaeology at King's College LondonYannis HamilakisProfessor of Archaeology at the University of Southampton.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss Alfred, Lord Tennyson's long poem In Memoriam.In 1850, shortly before his appointment as Poet Laureate, Tennyson published a work which many critics regard as his masterpiece. In Memoriam A.H.H. was written in tribute to a close friend, Arthur Hallam, who had died seventeen years earlier. The two had met while at university in Cambridge; during one summer when Hallam was visiting Tennyson he had fallen in love with and become engaged to Tennyson's sister, Emily. When Hallam died suddenly at the age of 22 Tennyson was torn apart by grief. He started to write verses for In Memoriam almost straight away, but it was only later that he assembled these fragments into one long poem. The work is a farewell not just to Hallam but to an entire system of thought. New geological discoveries meant that Biblical certainties, such as the age of the Earth, were suddenly thrown into question. Tennyson realised that the advent of new scientific certainties meant the death of old religious ones. The work was enormously successful; one early reader was Queen Victoria, who after the death of Prince Albert wrote: "Next to the Bible, In Memoriam is my comfort".With: Dinah BirchProfessor of English Literature and Pro-Vice-Chancellor for Research at Liverpool UniversitySeamus PerryFellow and Tutor in English at Balliol College, University of OxfordJane WrightLecturer in English at the University of Bristol. Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss Malthusianism.In the eighteenth century, as expanding agriculture and industry resulted in a rapid increase in the European population, a number of writers began to consider the implications of this rise in numbers. Some argued it was a positive development, since a larger population meant more workers and thus more wealth. Others maintained that it placed an intolerable strain on natural resources.In 1798 a young Anglican priest, the Reverend Thomas Malthus, published An Essay on the Principle of Population. Malthus argued that the population was increasing exponentially, and that food production could not keep pace; eventually a crisis would ensue. He suggested that famine, disease and wars acted as a natural corrective to overpopulation, and also suggested a number of ways in which humans could regulate their own numbers. The work caused a furore and fuelled a public debate about the size and sustainability of the British population which raged for generations. It was a profoundly influential work: Charles Darwin credited Malthus with having inspired his Theory of Natural Selection.With:Karen O'BrienPro-Vice-Chancellor for Education at the University of BirminghamMark PhilpLecturer in Politics at the University of OxfordEmma GriffinSenior Lecturer in History at the University of East Anglia Producer: Thomas Morris.

Melvyn Bragg and his guests discuss John Wyclif and the Lollards.John Wyclif was a medieval philosopher and theologian who in the fourteenth century instigated the first complete English translation of the Bible. One of the most important thinkers of the Middle Ages, he also led a movement of opposition to the Roman Church and its institutions which has come to be seen as a precursor to the Reformation. Wyclif disputed some of the key teachings of the Church, including the doctrine of transubstantiation. His followers, the Lollards, were later seen as dangerous heretics, and in the fifteenth century many of them were burnt at the stake. Today Lollardy is seen as the first significant movement of dissent against the Church in England.With:Sir Anthony KennyPhilosopher and former Master of Balliol College, OxfordAnne HudsonEmeritus Professor of Medieval English at the University of OxfordRob LuttonLecturer in Medieval History at the University of NottinghamProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the origins of infectious disease. Infectious disease has been with us for millennia. There are reports of ancient outbreaks of plague in the Bible, and in numerous historical sources from China, the Middle East and Europe. Other infections, including smallpox, tuberculosis and measles, have also been known for centuries. But some diseases made their first appearances only recently: HIV emerged around a century ago, while the Ebola virus was first recorded in the 1970s.But where do the agents of disease come from, and what determines where and when new viruses and bacteria appear? Modern techniques allow scientists to trace the histories of infective agents through their genomes; the story of disease provides a fascinating microcosm of the machinery of evolution.With:Steve JonesProfessor of Genetics at University College LondonSir Roy AndersonProfessor of Infectious Disease Epidemiology at Imperial College LondonMark PallenProfessor of Microbial Genomics at the University of Birmingham.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Battle of Stamford Bridge.In the first week of 1066 the English king, Edward the Confessor, died. A young nobleman, Harold Godwinson, claimed that Edward had nominated him his successor, and seized the throne. But he was not the only claimant: in France the powerful Duke of Normandy, William, believed that he was the rightful king, and prepared to invade England.As William amassed his forces on the other side of the Channel, however, an army led by the Norwegian king Harald Hardrada invaded from the North Sea. Harold quickly marched north and confronted the Norsemen, whose leaders included his own brother Tostig. The English won an emphatic victory; but barely three weeks later Harold was dead, killed at Hastings, and the Norman Conquest had begun.With: John HinesProfessor of Archaeology at Cardiff UniversityElizabeth RoweLecturer in Scandinavian History of the Viking Age at Clare Hall, University of CambridgeStephen BaxterReader in Medieval History at King's College LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the life and work of Xenophon.Xenophon, an aristocratic Athenian, was one of the most celebrated writers of the ancient world. Born in around 430 BC, he was a friend and pupil of the great philosopher Socrates. In his twenties he took part in an unsuccessful attempt to overthrow the Persian king Artaxerxes II, and played a key role in guiding the surviving Greek troops - known as the Ten Thousand - back to safety. It was a dangerous journey from deep inside hostile territory, and lasted more than a year. Xenophon's gripping account of this military campaign, the Anabasis, is one of the masterpieces of Greek literature.Xenophon went on to write a history of the Peloponnesian War and its aftermath. But he was not just a historian, and his other works include books about household management, hunting and his mentor Socrates. His advice on the education and behaviour of princes had a significant influence in Renaissance Italy, and his treatise on horsemanship is still widely read today.With:Paul CartledgeA.G. Leventis Professor of Greek Culture at Cambridge UniversityEdith HallProfessor of Classics and Drama at Royal Holloway, University of LondonSimon GoldhillProfessor in Greek Literature and Culture at the University of Cambridge and Fellow and Director of Studies in Classics at King's College.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Battle of the Little Bighorn, also known as Custer's Last Stand.In 1876 a dispute between the American federal government and Native Americans over land rights led to an armed conflict now known as the Great Sioux War. An expeditionary federal force was sent out to coerce the Native Americans into reservations, and away from the gold reserves recently discovered in their traditional homelands.One of the officers in this expeditionary force was a Civil War hero, George Custer. While en route to his arranged rendezvous, Custer unexpectedly encountered a large group of Sioux and Cheyenne warriors. Disobeying orders, he decided to attack. Barely half an hour later, he and all 200 of his men lay dead. Custer's Last Stand has become one of the most famous and closely studied military engagements in American history.With:Kathleen BurkProfessor of Modern and Contemporary History at University College, LondonAdam SmithSenior Lecturer in American History at University College LondonSaul DavidProfessor of War Studies at the University of Buckingham.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss Robert Burton's masterpiece The Anatomy of Melancholy.In 1621 the priest and scholar Robert Burton published a book quite unlike any other. The Anatomy of Melancholy brings together almost two thousand years of scholarship, from Ancient Greek philosophy to seventeenth-century medicine. Melancholy, a condition believed to be caused by an imbalance of the body's four humours, was characterised by despondency, depression and inactivity. Burton himself suffered from it, and resolved to compile an authoritative work of scholarship on the malady, drawing on all relevant sources.Despite its subject matter the Anatomy is an entertaining work, described by Samuel Johnson as the only book 'that ever took him out of bed two hours sooner than he wished to rise.' It also offers a fascinating insight into seventeenth-century medical theory, and influenced many generations of playwrights and poets.With:Julie SandersProfessor of English Literature and Drama at the University of NottinghamMary Ann LundLecturer in English at the University of LeicesterErin SullivanLecturer and Fellow at the Shakespeare Institute at the University of Birmingham.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the origins and early development of Islamic law. The legal code of Islam is known as Sharia, an Arabic word meaning "the way". Its sources include the Islamic holy book the Qur'an, the words and actions of the Prophet Muhammad, and the opinions of legal scholars. In the 7th century, Sharia started to replace the tribal laws of pre-Islamic Arabia; over the next three hundred years it underwent considerable evolution as Islam spread. By 900 a body of religious and legal scholarship recognisable as classical Sharia had emerged.With:Hugh KennedyProfessor of Arabic in the School of Oriental and African Studies at the University of LondonRobert GleaveProfessor of Arabic Studies at the University of ExeterMona SiddiquiProfessor of Islamic Studies at the University of GlasgowProducer: Thomas Morris.

Melvyn Bragg and his guests discuss one of the most famous statements in philosophy: "Cogito ergo sum".In his Discourse on the Method, published in 1637, the French polymath Rene Descartes wrote a sentence which remains familiar today even to many people who have never heard of him. "I think", he wrote, "therefore I exist". Although the statement was made in French, it has become better known in its Latin translation; and philosophers ever since have referred to it as the Cogito Argument.In his first Meditation, published ten years after the Discourse, Descartes went even further. He asserted the need to demolish everything completely and start right again from the foundations, arguing, for instance, that information from the senses cannot be trusted. The only thing he could be sure of was this: because he was thinking, he must exist. This simple idea continues to stir up enormous interest and has attracted comment from thinkers from Hobbes to Nietzsche and Sartre. With:Susan JamesProfessor of Philosophy at Birkbeck College, University of LondonJohn CottinghamProfessor Emeritus of Philosophy at the University of Reading and Professorial Research Fellow at Heythrop College, University of LondonStephen MulhallProfessor of Philosophy at the University of Oxford.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Pelagian Controversy.In the late 4th century a British monk, Pelagius, travelled to Rome, where he became a theologian and teacher, revered for his learning and ascetic lifestyle. But he soon aroused the ire of some of the Church's leading figures, preaching a Christian doctrine which many regarded as heretical. Pelagius believed that mankind was not inherently depraved, and disputed the necessity of original sin. His opinions were highly controversial and led to fierce division. Pelagius's most prominent opponent was the African bishop St Augustine of Hippo. Their dispute resulted in the persecution and eventual condemnation of Pelagius and his followers, and was to be of long-lasting significance to the future of the Church.With:Martin PalmerDirector of the International Consultancy on Religion, Education, and CultureCaroline HumfressReader in History at Birkbeck College, University of LondonJohn MilbankProfessor in Religion, Politics and Ethics and the Director of the Centre for Theology and Philosophy at Nottingham UniversityProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the neutrino.In 1930 the physicist Wolfgang Pauli proposed the existence of an as-yet undiscovered subatomic particle. He also bet his colleagues a case of champagne that it would never be detected. He lost his bet when in 1956 the particle, now known as the neutrino, was first observed in an American nuclear reactor. Neutrinos are some of the most mysterious particles in the Universe. The Sun produces trillions of them every second, and they constantly bombard the Earth and everything on it. Neutrinos can pass through solid rock, and even stars, at almost the speed of light without being impeded, and are almost impossible to detect. Today, experiments involving neutrinos are providing insights into the nature of matter, the contents of the Universe and the processes deep inside stars.With:Frank CloseProfessor of Physics at Exeter College at the University of OxfordSusan CartwrightSenior Lecturer in Particle Physics and Astrophysics at the University of SheffieldDavid WarkProfessor of Particle Physics at Imperial College, London, and the Rutherford Appleton Laboratory. Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Victorian social reformer Octavia Hill.From the 1850s until her death in 1912, Octavia Hill was an energetic campaigner who did much to improve the lot of impoverished city dwellers. She was a pioneer of social housing who believed that there were better and more humane ways of arranging accommodation for the poor than through the state. Aided at first by her friend John Ruskin, the essayist and art critic, she bought houses and let them to the urban dispossessed. Octavia Hill provided an early model of social work, did much to preserve urban open spaces, and was the first to use the term 'green belt' to describe the rural areas around London. She was also one of the founders of the National Trust. Yet her vision of social reform, involving volunteers and private enterprise rather than central government, was often at odds with that of her contemporaries.With:Dinah BirchProfessor of English Literature and Pro-Vice Chancellor for Research at Liverpool UniversityLawrence GoldmanFellow in Modern History at St Peter's College, OxfordGillian DarleyHistorian and biographer of Octavia HillProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Bhagavad Gita.The Bhagavad Gita, a 700-verse section of the Sanskrit epic the Mahabharata, is one of the most revered texts of Hinduism. Written in around 200 BC, it narrates a conversation between Krishna, an incarnation of the deity, and the Pandava prince Arjuna. It has been described as a concise summary of Hindu theology, a short work which offers advice on how to live one's life.The Gita is also a philosophical work of great richness and influence. First translated into English in the 18th century, it was quickly taken up in the West. Its many admirers have included Mahatma Gandhi, whose passion for the work is one reason that the Bhagavad Gita became a key text for followers of the Indian Independence movement in the first half of the twentieth century.With:Chakravarthi Ram-PrasadProfessor of Comparative Religion and Philosophy at Lancaster UniversityJulius LipnerProfessor of Hinduism and the Comparative Study of Religion and Fellow of Clare Hall at the University of CambridgeJessica FrazierResearch Fellow at the Oxford Centre for Hindu Studies and Lecturer in Religious Studies at Regent's College, LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the dawn of the European Iron Age.In around 3000 BC European metalworkers started to make tools and weapons out of bronze. A complex trading network evolved to convey this valuable metal and other goods around the continent. But two millennia later, a new skill arrived from the Middle East: iron smelting. This harder, more versatile metal represented a huge technological breakthrough.The arrival of the European Iron Age, in around 1000 BC, was a time of huge social as well as technological change. New civilisations arose, the landscape was transformed, and societies developed new cultures and lifestyles. Whether this was the direct result of the arrival of iron is one of the most intriguing questions in archaeology.With:Sir Barry CunliffeEmeritus Professor of European Archaeology at the University of OxfordSue HamiltonProfessor of Prehistory at University College LondonTimothy ChampionProfessor of Archaeology at the University of SouthamptonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the medieval universities.In the 11th and 12th centuries a new type of institution started to appear in the major cities of Europe. The first universities were those of Bologna and Paris; within a hundred years similar educational organisations were springing up all over the continent. The first universities based their studies on the liberal arts curriculum, a mix of seven separate disciplines derived from the educational theories of Ancient Greece. The universities provided training for those intending to embark on careers in the Church, the law and education. They provided a new focus for intellectual life in Europe, and exerted a significant influence on society around them. And the university model proved so robust that many of these institutions and their medieval innovations still exist today.With:Miri RubinProfessor of Medieval and Early Modern History at Queen Mary, University of LondonIan WeiSenior Lecturer in Medieval European History at the University of BristolPeter DenleyReader in History at Queen Mary, University of London.Producer: Thomas Morris.

In the 500th edition of the programme, Melvyn Bragg and his guests discuss the philosophical idea of free will.Free will - the extent to which we are free to choose our own actions - is one of the most absorbing philosophical problems, debated by almost every great thinker of the last two thousand years. In a universe apparently governed by physical laws, is it possible for individuals to be responsible for their own actions? Or are our lives simply proceeding along preordained paths? Determinism - the doctrine that every event is the inevitable consequence of what goes before - seems to suggest so.Many intellectuals have concluded that free will is logically impossible. The philosopher Baruch Spinoza regarded it as a delusion. Albert Einstein wrote: "Human beings, in their thinking, feeling and acting are not free agents but are as causally bound as the stars in their motion." But in the Enlightenment, philosophers including David Hume found ways in which free will and determinism could be reconciled. Recent scientific developments mean that this debate remains as lively today as it was in the ancient world.With: Simon BlackburnBertrand Russell Professor of Philosophy at the University of CambridgeHelen BeebeeProfessor of Philosophy at the University of BirminghamGalen StrawsonProfessor of Philosophy at the University of ReadingProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the age of the Universe.Since the 18th century, when scientists first realised that the Universe had existed for more than a few thousand years, cosmologists have debated its likely age. The discovery that the Universe was expanding allowed the first informed estimates of its age to be made by the great astronomer Edwin Hubble in the early decades of the twentieth century. Hubble's estimate of the rate at which the Universe is expanding, the so-called Hubble Constant, has been progressively improved. Today cosmologists have a variety of other methods for ageing the Universe, most recently the detailed measurements of cosmic microwave background radiation - the afterglow of the Big Bang - made in the last decade. And all these methods seem to agree on one thing: the Universe has existed for around 13.75 billion years.With:Martin ReesAstronomer Royal and Emeritus Professor of Cosmology and Astrophysics at the University of CambridgeCarolin CrawfordMember of the Institute of Astronomy and Fellow of Emmanuel College at the University of CambridgeCarlos FrenkDirector of the Institute for Computational Cosmology at the University of Durham.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Taiping Rebellion.In 1850 a Chinese Christian convert, Hong Xiuquan, proclaimed himself leader of a new dynasty, the Taiping Heavenly Kingdom. He and his followers marched against the ruling Qing dynasty, gathering huge support as they went. The ensuing civil war lasted fourteen years; around twenty million people lost their lives in a conflict which eventually involved European as well as Chinese soldiers. The Taiping Rebellion was arguably the most important event to befall China in the 19th century. Chinese nationalists and communists alike have been profoundly influenced by it, and historians believe it shaped modern China in the same way as the First World War shaped modern Europe.Rana MitterProfessor of the History and Politics of Modern China at the University of OxfordFrances WoodHead of the Chinese Section at the British LibraryJulia LovellLecturer in Chinese History at Birkbeck, University of London.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the work and influence of Maimonides.Widely regarded as the greatest Jewish philosopher of the medieval period, Maimonides was also a physician and rabbinical authority. Also known as Rambam, his writings include a 14-volume work on Jewish law, the Mishneh Torah, which is still widely used today, and the Guide for the Perplexed, a central work of medieval philosophy. Although undoubtedly a titan of Jewish intellectual history, Maimonides was also profoundly influenced by the Islamic world. He exerted a strong influence on later Islamic philosophy, as well as on thinkers ranging from Thomas Aquinas to Leibniz and Newton.With:John HaldaneProfessor of Philosophy at the University of St AndrewsSarah StroumsaAlice and Jack Ormut Professor of Arabic Studies and currently Rector at the Hebrew University of JerusalemPeter AdamsonProfessor of Ancient and Medieval Philosophy at King's College London.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the nervous system.Most animals have a nervous system, a network of nerve tissues which allows parts of the body to communicate with each other. In humans the most significant parts of this network are the brain, spinal column and retinas, which together make up the central nervous system. But there is also a peripheral nervous system, which enables sensation, movement and the regulation of the major organs.Scholars first described the nerves of the human body over two thousand years ago. For 1400 years it was believed that they were animated by 'animal spirits', mysterious powers which caused sensation and movement. In the eighteenth century scientists discovered that nerve fibres transmitted electrical impulses; it was not until the twentieth century that chemical agents - neurotransmitters - were first identified.With:Colin Blakemore Professor of Neuroscience at the University of OxfordVivian Nutton Emeritus Professor of the History of Medicine at University College, LondonTilli Tansey Professor of the History of Modern Medical Sciences at Queen Mary, University of London.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Battle of Bannockburn.On June 23rd 1314, Scottish forces under their king Robert the Bruce confronted a larger army commanded by the English monarch Edward II at Bannockburn. It was the culmination of a war of independence which had been going on since the English had invaded Scotland in 1296. After eighteen years of intermittent fighting the English had been all but expelled from Scotland: their last stronghold was the castle at Stirling.The Scots won a decisive victory at Bannockburn. The English were routed and their king narrowly escaped capture. Although it took a further 14 years for Scotland to achieve full independence with the 1328 Treaty of Edinburgh-Northampton, this was an important triumph; today it remains one of the most discussed moments in the nation's history.With:Matthew StricklandProfessor of Medieval History at the University of GlasgowFiona WatsonHonorary Research Fellow in History at the University of DundeeMichael BrownReader in History at the University of St Andrews Producer: Thomas Morris.

Melvyn Bragg and his guests discuss Aristotle's Poetics. The Poetics is, as far as we know, the first ever work of literary theory. Written in the 4th century BC, it is the work of a scholar who was also a biologist, and treats literary works with the detached analytical eye of a scientist. Aristotle examines drama and epic poetry, and how they achieve their effects; he analyses tragedy and the ways in which it plays on our emotions. Many of the ideas he articulates, such as catharsis, have remained in our critical vocabulary ever since. The book also contains an impassioned defence of poetry, which had been attacked by other thinkers, including Aristotle's own teacher Plato.Translated by medieval Arab scholars, the Poetics was rediscovered in Europe during the Renaissance and became a playwriting manual for many dramatists of the era. Today it remains a standard text for would-be Hollywood screenwriters.With:Angie HobbsAssociate Professor of Philosophy and Senior Fellow in the Public Understanding of Philosophy at the University of WarwickNick LoweReader in Classical Literature at Royal Holloway, University of LondonStephen HalliwellProfessor of Greek at the University of St AndrewsProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Mexican Revolution.In 1908 the President of Mexico, Porfirio Diaz, gave an interview to an American journalist. He was 77 and had ruled the country in autocratic fashion for over thirty years. He discussed the country's economic development and spoke of his intention to retire to his country estate after overseeing a transition to multiparty democracy.Things did not turn out quite like that. Two years later Diaz was toppled by a popular uprising. It was the beginning of a tumultuous decade in which different factions fought for supremacy, and power changed hands many times. The conflict completely changed the face of the country, and resulted in the emergence of Mexico's most celebrated folk hero: Emiliano Zapata.With:Alan KnightProfessor of the History of Latin America at the University of OxfordPaul GarnerCowdray Professor of Spanish at the University of LeedsPatience SchellSenior Lecturer in Latin American Cultural Studies at the University of Manchester. Producer: Thomas Morris.

Melvyn Bragg and his guests discuss randomness and pseudorandomness.Randomness is the mathematics of the unpredictable. Dice and roulette wheels produce random numbers: those which are unpredictable and display no pattern. But mathematicians also talk of 'pseudorandom' numbers - those which appear to be random but are not. In the last century random numbers have become enormously useful to statisticians, computer scientists and cryptographers. But true randomness is difficult to find, and mathematicians have devised many ingenious solutions to harness or simulate it. These range from the Premium Bonds computer ERNIE (whose name stands for Electronic Random Number Indicator Equipment) to new methods involving quantum physics.Digital computers are incapable of behaving in a truly random fashion - so instead mathematicians have taught them how to harness pseudorandomness. This technique is used daily by weather forecasters, statisticians, and computer chip designers - and it's thanks to pseudorandomness that secure credit card transactions are possible.With:Marcus du SautoyProfessor of Mathematics at the University of OxfordColva Roney-DougalSenior Lecturer in Pure Mathematics at the University of St AndrewsTimothy GowersRoyal Society Research Professor in Mathematics at the University of CambridgeProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Byron's poem Childe Harold's Pilgrimage.In 1812 the 24-year-old Lord Byron published the first part of a long narrative poem. It caused an instant sensation. "I awoke one morning and found myself famous", wrote Byron in his memorandum book, and the first edition sold out in three days. The poem narrates the life of an aristocrat on a grand tour of Europe. Its central character is the first Byronic hero, a flawed but charismatic young man modelled on the poet.As well as offering a self-portrait of Byron as a young man, Childe Harold is a fascinating snapshot of Europe at the beginning of the nineteenth century, a place ravaged by revolution and war; the poem also gives us an insight into the political and intellectual concerns of its author.With:Jonathan BateProfessor of English Literature at the University of WarwickJane StablerReader in Romanticism at the University of St AndrewsEmily Bernhard JacksonAssistant Professor in Nineteenth-Century English Literature at the University of Arkansas.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the far-reaching consequences of the Industrial Revolution. After more than a century of rapid technological change, and the massive growth of its urban centres, Britain was changed forever. Lifestyles changed as workers moved from agricultural settlements to factory towns: health, housing and labour relations were all affected. But the effects were both social and intellectual, as thinkers originated theories to deal with the new realities of urban living, mass production and a consumer society. With:Jane HumphriesProfessor of Economic History and Fellow of All Souls College, University of OxfordEmma GriffinSenior Lecturer in History at the University of East AngliaLawrence GoldmanFellow and Tutor in History at St Peter's College, University of OxfordProducer: Thomas Morris.

In the first of two programmes, Melvyn Bragg and his guests discuss the Industrial Revolution.Between the middle of the eighteenth century and the early years of the nineteenth, Britain was transformed. This was a revolution, but not a political one: over the course of a few generations industrialisation swept the nation. Inventions such as the machine loom and the steam engine changed the face of manufacturing; cheap iron and steel became widely available; and vast new cities grew up around factory towns.All this had profound effects - not all of them positive - as an agrarian and primitive society was turned into an industrial empire, the richest nation on Earth. But why did this revolution take place here rather than abroad? And why did it begin in the first place?With:Jeremy BlackProfessor of History at the University of ExeterPat HudsonProfessor Emerita of History at Cardiff UniversityWilliam AshworthSenior Lecturer in History at the University of Liverpool.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss Daoism. An ancient Chinese tradition of philosophy and religious belief, Daoism first appeared more than two thousand years ago. For centuries it was the most popular religion in China; in the West its religious aspects are not as well known as its practices, which include meditation and Feng Shui, and for its most celebrated text, the Daodejing.The central aim in Daoism is to follow the 'Dao', a word which roughly translates as 'The Way'. Daoists believe in following life in its natural flow, what they refer to as an 'effortless action'. This transcendence can be linked to Buddhism, the Indian religion that came to China in the 2nd century BC and influenced Daoism - an exchange which went both ways. Daoism is closely related to, but has also at times conflicted with, the religion of the Chinese Imperial court, Confucianism. The spirit world is of great significance in Daoism, and its hierarchy and power often take precedence over events and people in real life. But how did this ancient and complex religion come to be so influential?With:Tim Barrett Professor of East Asian History at the School of Oriental and African Studies, University of LondonMartin PalmerDirector of the International Consultancy on Religion, Education and CultureHilde De WeerdtFellow and Tutor in Chinese History at Pembroke College, University of Oxford Producer: Natalia Fernandez.

Melvyn Bragg and his guests discuss the innovations and influence of Thomas Edison, one of the architects of the modern age.Edison is popularly remembered as the man who made cheap electric light possible. Born in 1847, he began his career working in the new industry of telegraphy, and while still in his early twenties made major improvements to the technology of the telegraph. Not long afterwards he invented a new type of microphone which was used in telephones for almost a century. In the space of three productive years, Edison developed the phonograph and the first commercially viable light bulb and power distribution system. Many more inventions were to follow: he also played a part in the birth of cinema in the 1890s. When he died in 1931 he had patented no fewer than 1093 devices - the most prolific inventor in history. As the creator of the world's first industrial research laboratory he forever changed the way in which innovation took place.With:Simon SchafferProfessor of the History of Science, University of CambridgeKathleen BurkProfessor of History, University College LondonIwan MorusReader in History, University of AberystwythProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Cleopatra. The last pharaoh to rule Egypt, Cleopatra was a woman of intelligence and charisma, later celebrated as a great beauty. During an eventful life she was ousted from her throne and later restored to it with the help of her lover Julius Caesar. A later relationship with another Roman statesman, Mark Antony - and Cleopatra's subsequent death at her own hands - provided Shakespeare with the raw material for one of his greatest plays. Today Cleopatra is still an object of fascination, her story revealing as much about the Roman world as it does about the end of the age of the Pharaohs.With:Catharine EdwardsProfessor of Classics and Ancient History at Birkbeck, University of LondonMaria WykeProfessor of Latin at University College LondonSusan WalkerKeeper of Antiquities at the Ashmolean Museum at the University of OxfordProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the history of metaphor. In Shakespeare's As You Like It, the melancholy Jaques declares: "All the world's a stage/And all the men and women merely players." This is a celebrated use of metaphor, a figure of speech in which one thing is used to describe another. Metaphor is a technique apparently as old as language itself; it is present in the earliest surviving work of literature, the Epic of Gilgamesh. Homer developed it into an art form, and his invention of the epic simile was picked up by later writers including Milton. In the Middle Ages the device of allegory underpinned much of French and English writing, while the Metaphysical poets employed increasingly elaborate metaphorical conceits in the sixteenth century. In the age of the novel the metaphor once again evolved, while the Modernist writers used it to subvert their readers' expectations. But how does metaphor work, and what does this device tell us about the way our minds function?With:Steven ConnorProfessor of Modern Literature and Theory at Birkbeck, University of LondonTom HealyProfessor of Renaissance Studies at the University of SussexJulie SandersProfessor of English Literature and Drama at the University of NottinghamProducer: Thomas Morris.

Melvyn Bragg and his guests discuss John Foxe and his book Actes and Monuments, better known today as Foxe's Book of Martyrs. Born in 1517, John Foxe was an early Protestant who was forced to flee the persecutions which ensued when the Catholic Mary came to the English throne in 1553. He was a horrified observer on the Continent as more than three hundred of his countrymen were burnt at the stake. In exile he began work on a substantial work of scholarship, bringing together eyewitness accounts of these horrifying deaths.First published in 1563, Foxe's Book of Martyrs was one of the most elaborate early books produced, and thanks to vivid woodcut illustrations reached an audience far beyond the literate elite. Its stories of Protestant martyrdom became powerful Church propaganda in the late sixteenth century and were used by those who wished to banish Catholicism from England permanently. But despite its use as an instrument of religious factionalism, Foxe's work remains one of the key and most read books of the early modern period. With:Diarmaid MacCullochProfessor of Church History at the University of OxfordJustin ChampionProfessor of the History of Early Modern Ideas at Royal Holloway, University of LondonElizabeth EvendenLecturer in Book History at Brunel UniversityProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Volga Vikings. Between the 8th and the 10th centuries AD, fierce Scandinavian warriors raided and then settled large swathes of Europe, particularly Britain, Ireland and parts of northern France. These were the Vikings, and their story is well known today. Far fewer people realise that groups of Norsemen also travelled east.These Volga Vikings, also known as the Rus, crossed the Baltic into present-day Russia and the Ukraine and founded settlements there. They traded commodities including furs and slaves for Islamic silver, and penetrated so far east as to reach Baghdad. Their activities were documented by Arab scholars: one, Ahmad ibn Fadlan, recorded that the Volga Vikings he met were perfect physical specimens but also "the filthiest of God's creatures". Through trade and culture they brought West and East into regular contact; their story sheds light on both Scandinavian and early Islamic history.With:James MontgomeryProfessor of Classical Arabic at the University of CambridgeNeil PriceProfessor of Archaeology at the University of AberdeenElizabeth RoweLecturer in Scandinavian History of the Viking Age at Clare Hall, University of CambridgeProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the role played by women in Enlightenment science. During the eighteenth century the opportunities for women to gain a knowledge of science were minimal. Universities and other institutions devoted to research were the preserve of men. Yet many important contributions to the science of the Enlightenment were made by women. These ranged from major breakthroughs like those of the British astronomer Caroline Herschel, the first woman to discover a comet, to important translations of scientific literature such as Emilie du Chatelet's French version of Newton's Principia - and all social classes were involved, from the aristocratic amateur botanists to the women artisans who worked in London's workshops manufacturing scientific instruments. The image above, of Emilie du Chatelet, is attributed to Maurice Quentin de La Tour.WithPatricia Fara Senior Tutor at Clare College, University of CambridgeKaren O'Brien Professor of English at the University of WarwickJudith Hawley Professor of 18th Century Literature at Royal Holloway, University of LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the unicorn. In the 5th century BC a Greek historian, Ctesias, described a strange one-horned beast which he believed to live in a remote area of India. Later classical scholars, including Aristotle and Pliny, added to his account of this animal which they called the monoceros, a vicious ass-like creature with a single horn in the middle of its forehead.For centuries the monoceros or unicorn was widely accepted to be a real - if rarely seen - beast. It appears in the Bible, and in the Middle Ages became a powerful Christian symbol. It continued to be represented in art and literature throughout the Renaissance, when 'unicorn horn' became one of the most valuable commodities on earth, thanks to its supposed properties as an antidote to poison. As late as the seventeenth century, scientists believed they had found conclusive proof of the existence of unicorns. It was some time before the animal was shown to be a myth; four hundred years on, the unicorn retains much of its fascination and symbolic power.With:Juliette WoodAssociate Lecturer in Folklore at Cardiff UniversityLauren KassellLecturer in the History and Philosophy of Science at the University of CambridgeDavid EkserdjianProfessor of the History of Art and Film at the University of Leicester.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the history of logic. Logic, the study of reasoning and argument, first became a serious area of study in the 4th century BC through the work of Aristotle. He created a formal logical system, based on a type of argument called a syllogism, which remained in use for over two thousand years. In the nineteenth century the German philosopher and mathematician Gottlob Frege revolutionised logic, turning it into a discipline much like mathematics and capable of dealing with expressing and analysing nuanced arguments. His discoveries influenced the greatest mathematicians and philosophers of the twentieth century and considerably aided the development of the electronic computer. Today logic is a subtle system with applications in fields as diverse as mathematics, philosophy, linguistics and artificial intelligence.With:A.C. GraylingProfessor of Philosophy at Birkbeck, University of LondonPeter MillicanGilbert Ryle Fellow in Philosophy at Hertford College at the University of OxfordRosanna KeefeSenior Lecturer in Philosophy at the University of Sheffield.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the artistic movement known as Sturm und Drang.In the 1770s a small group of German writers started to produce plays, poetry and novels which were radically different from what had gone before. These writers were all young men, and they rejected the values of the Enlightenment, which they felt had robbed art of its spontaneity and feeling. Their work was passionate, ignored existing conventions and privileged the individual's free will above the constraints of society.The most prominent member of the movement was Johann von Goethe, whose novel The Sorrows of Young Werther became its most notable success, translated into more then thirty languages. Despite this and other successes including Schiller's play The Robbers, the Sturm und Drang disappeared almost as quickly as it had emerged; by the mid-1780s it was already a thing of the past.With:Tim BlanningEmeritus Professor of Modern European History at Cambridge UniversitySusanne KordProfessor of German at University College, LondonMaike Oergel Associate Professor of German at the University of NottinghamProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Spanish Armada. On May 28th, 1588, a fleet of a hundred and fifty-one Spanish ships set out from Lisbon, bound for England. Its mission was to transport a huge invasion force across the Channel: the Spanish King, Philip II, was determined to remove Elizabeth from the throne and return the English to the Catholic fold. Two months later the mighty Spanish Armada was sighted off the coast of Cornwall. Bad weather, poor planning and spirited English resistance defeated the Spaniards: after a brief battle the remnants of their fleet fled. This tale of religious dispute, shifting political alliance and naval supremacy has entered our folklore - although some historians argue it changed nothing.With:Diane PurkissFellow and Tutor at Keble College, OxfordMia Rodriguez-SalgadoProfessor in International History at the London School of EconomicsNicholas RodgerSenior Research Fellow at All Souls College at the University of OxfordProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the Delphic Oracle, the most important source of prophecies in the ancient world. In central Greece, on the flank of Mount Parnassus, lies the ruined city of Delphi. For over a thousand years, between approximately 800 BC and 400 AD, this was the most sacred place in the ancient world. Its chief attraction was the Delphic Oracle, which predicted the future and offered petitioners advice.Travellers journeyed for weeks for a chance to ask the oracle a question. The answers, given by a mysterious priestess called the Pythia, were believed to come straight from the god Apollo. At the height of Greek civilisation the oracle was revered, and its opinion sought in some of the most significant conflicts of the age. Its activities were documented by historians including Xenophon and Plutarch, and it was regularly depicted in Greek tragedy, most famously Sophocles's masterpiece Oedipus the King.With: Paul CartledgeA G Leventis Professor of Greek Culture at Cambridge UniversityEdith HallProfessor of Classics and Drama at Royal Holloway, University of LondonNick LoweReader in Classical Literature at Royal Holloway, University of London.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss imaginary numbers. In the sixteenth century, a group of mathematicians in Bologna found a solution to a problem that had puzzled generations before them: a completely new kind of number. For more than a century this discovery was greeted with such scepticism that the great French thinker Rene Descartes dismissed it as an "imaginary" number.The name stuck - but so did the numbers. Long dismissed as useless or even fictitious, the imaginary number i and its properties were first explored seriously in the eighteenth century. Today the imaginary numbers are in daily use by engineers, and are vital to our understanding of phenomena including electricity and radio waves. With Marcus du SautoyProfessor of Mathematics at Oxford University Ian StewartEmeritus Professor of Mathematics at the University of WarwickCaroline SeriesProfessor of Mathematics at the University of WarwickProducer: Thomas Morris.

Melvyn Bragg and his guests discuss Pliny's Natural History.Some time in the first century AD, the Roman scholar Pliny the Elder published his Naturalis Historia, or Natural History, an enormous reference work which attempted to bring together knowledge on every subject under the sun. The Natural History contains information on zoology, astronomy, geography, minerals and mining and - unusually for a work of this period - a detailed treatise on the history of classical art. It's a fascinating snapshot of the state of human knowledge almost two millennia ago.Pliny's 37-volume magnum opus is one of the most extensive works of classical scholarship to survive in its entirety, and was being consulted by scholars as late as the Renaissance. It had a significant influence on intellectual history, and has provided the template for every subsequent encyclopaedia.With:Serafina CuomoReader in Roman History at Birkbeck, University of LondonAude DoodyLecturer in Classics at University College, DublinLiba TaubReader in the History and Philosophy of Science, Cambridge UniversityProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the reign of King Athelstan.Athelstan, the grandson of Alfred the Great, came to the throne of Wessex in 925. A few years later he unified the kingdoms of England, and a decade after that defeated the Scots and styled himself King of all Britain. As well as being a brilliant military commander, Athelstan was a legal reformer whose new laws forever changed the way crime was dealt with in England. Unlike his predecessors, he pursued a foreign policy, seeking alliances with powerful rulers abroad. And unusually for an Anglo-Saxon king, we know what he looked like: he's the earliest English monarch whose portrait survives.With:Sarah FootRegius Professor of Ecclesiastical History at Christ Church, OxfordJohn HinesProfessor of Archaeology at Cardiff UniversityRichard GamesonProfessor of the History of the Book at Durham UniversityProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the history of Antarctica.The most southerly of the continents is the bleakest and coldest place on Earth. Almost entirely covered in ice, Antarctica spends much of the winter in total darkness.Antarctica was first named in the second century AD by the geographer Marinus of Tyre, who was one of many early geographers to speculate about the existence of a huge southern landmass to balance the known lands of northern Europe. But it wasn't until the nineteenth century that modern man laid eyes on the continent.In the intervening two hundred years the continent has been the scene for some of the most famous - and tragic - events of human exploration. In 1959 an international treaty declared Antarctica a scientific reserve, set aside for peaceful use by any nation willing to subscribe to the terms of the agreement.With: Jane FrancisProfessor of Paleoclimatology at the University of LeedsJulian DowdeswellDirector of the Scott Polar Research Institute and Professor of Physical Geography at the University of CambridgeDavid WaltonEmeritus Professor at the British Antarctic Survey and Visiting Professor at the University of Liverpool.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Neanderthals.In 1856, quarry workers in Germany found bones in a cave which seemed to belong to a bear or other large mammal. They were later identified as being from a previously unknown species of hominid similar to a human. The specimen was named Homo neanderthalis after the valley in which the bones were found.This was the first identified remains of a Neanderthal, a species which inhabited parts of Europe and Central Asia from around 400,000 years ago. Often depicted as little more advanced than apes, Neanderthals were in fact sophisticated, highly-evolved hunters capable of making tools and even jewellery.Scholarship has established much about how and where the Neanderthals lived - but the reasons for their disappearance from the planet around 28,000 years ago remain unclear.With: Simon Conway MorrisProfessor of Evolutionary Palaeobiology at the University of CambridgeChris Stringer Research Leader in Human Origins at the Natural History Museum and Visiting Professor at Royal Holloway, University of LondonDanielle SchreveReader in Physical Geography at Royal Holloway, University of LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the work of the eighteenth-century philosopher, politician and writer Edmund Burke.Born in Dublin, Burke began his career in London as a journalist and made his name with two works of philosophy before entering Parliament. There he quickly established a reputation as one of the most formidable orators of an age which also included Pitt the Younger.When unrest began in America in the 1760s, Burke was quick to defend the American colonists in their uprising. But it was his response to another revolution which ensured he would be remembered by posterity. In 1790 he published Reflections on the Revolution in France, a work of great literary verve which attacked the revolutionaries and predicted disaster for their project. The book prompted Thomas Paine to write his masterpiece Rights of Man, and Mary Wollstonecraft was among the others to take part in the ensuing pamphlet war. Burke's influence shaped our parliamentary democracy and attitude to Empire, and lingers today.With:Karen O'BrienProfessor of English at the University of WarwickRichard BourkeSenior Lecturer in History at Queen Mary, University of LondonJohn KeaneProfessor of Politics at the University of SydneyProducer: Thomas Morris.

Melvyn Bragg discusses 'Lives of the Artists' - the great biographer Giorgio Vasari's study of Renaissance painters, sculptors and architects. In 1550 a little known Italian artist, Giorgio Vasari, published a revolutionary book entitled 'Lives of the Most Excellent Italian Painters, Sculptors, and Architects, from Cimabue to Our Times'. In it he chronicled the evolution of Italian art from the early pioneer Giotto to the perfection of Michelangelo.For the first time, Vasari set out to record artists' eccentricities and foibles as well as their artistic triumphs. We learn that the painter Piero di Cosimo was scared of the sound of bells, and witness Donatello shouting at his statues. But amongst these beguiling stories of human achievement, Vasari also explained his own theory of what made great art.In more recent decades, Vasari has been criticised for not allowing factual accuracy to get in the way of a good story. Nonetheless, the influence of his work has been unparalleled. It has formed and defined the way we think about Renaissance art to this day and some credit him with being the founder of the discipline of the history of art. Few artists that Vasari criticised have been comprehensively rehabilitated and Vasari's semi-divine trio of Michelangelo, Raphael and Leonardo are still seen as the apotheosis of artistic perfection. With:Evelyn WelchProfessor of Renaissance Studies and Academic Dean for Arts at Queen Mary, University of LondonDavid EkserdjianProfessor of History of Art and Film at the University of LeicesterMartin KempEmeritus Professor in the History of Art at the University of OxfordProducer: Thomas Morris.

From the 1600s to the 1800s, scientific research in Britain was not yet a professional, publicly-funded career.So the wealth, status and freedom enjoyed by British aristocrats gave them the opportunity to play an important role in pushing science forwards - whether as patrons or practitioners.The Cavendish family produced a whole succession of such figures.In the 1600s, the mathematician Sir Charles Cavendish and his brother William collected telescopes and mathematical treatises, and promoted dialogue between British and Continental thinkers. They brought Margaret Cavendish, William's second wife, into their discussions and researches, and she went on to become a visionary, if eccentric, science writer, unafraid to take on towering figures of the day like Robert Hooke.In the 1700s, the brothers' cousin's great-grandson, Lord Charles Cavendish, emerged as a leading light of the Royal Society.Underpinned by his rich inheritance, Charles' son Henry became one of the great experimental scientists of the English Enlightenment.And in the 1800s, William Cavendish, Henry's cousin's grandson, personally funded the establishment of Cambridge University's Cavendish Laboratory. In subsequent decades, the Lab become the site of more great breakthroughs.With:Jim BennettDirector of the Museum of the History of Science at the University of OxfordPatricia FaraSenior Tutor of Clare College, University of CambridgeSimon SchafferProfessor of History of Science at the University of Cambridge and Fellow of Darwin College, CambridgeProducer - Phil Tinline.

Melvyn Bragg and guests discuss 'The Varieties of Religious Experience' by William James. The American novelist Henry James famously made London his home and himself more English than the English. In contrast, his psychologist brother, William, was deeply immersed in his American heritage. But in 1901, William came to Britain too. He had been invited to deliver a series of prestigious public lectures in Edinburgh. In them, he attempted a daringly original intellectual project. For the first time, here was a close-up examination of religion not as a body of beliefs, but as an intimate personal experience. When the lectures were printed, as 'The Varieties of Religious Experience', they were an instant success.They laid the ground for a whole new area of study - the psychology of religion - and influenced figures from the psychiatrist Carl Jung to the novelist Aldous Huxley. To date, James's book has been reprinted thirty-six times and has been hailed as one of the best non-fiction books of the twentieth century.With:Jonathan ReeFreelance philosopherJohn HaldaneProfessor of Philosophy at the University of St AndrewsGwen Griffith-DicksonEmeritus Professor of Divinity at Gresham College and Director of the Lokahi FoundationProducer: Natasha Emerson.

The Cool Universe is the name astronomers give to the matter between the stars.These great clouds of dust and gas are not hot enough to be detected by optical telescopes.But over the last few decades, they have increasingly become the focus of infrared telescopy.Astronomers had long encountered dark, apparently starless patches in the night sky. When they discovered that these were actually areas obscured by dust, they found a way to see through these vexing barriers, using infrared telescopes, to the light beyond.However, more recently, the dust itself has become a source of fascination.The picture now being revealed by infrared astronomy is of a universe that is dynamic.In this dynamic universe, matter is recycled - and so the dust and gas of the Cool Universe play a vital role. They are the material from which the stars are created, and into which they finally disintegrate, enriching the reservoir of cool matter from which new stars will eventually be formed. As a result of the new research, we are now beginning to see first-hand the way our planet was formed when the solar system was born.With:Carolin CrawfordMember of the Institute of Astronomy, and Fellow of Emmanuel College, at the University of CambridgePaul MurdinVisiting Professor of Astronomy at Liverpool John Moores University's Astronomy Research InstituteMichael Rowan-RobinsonProfessor of Astrophysics at Imperial College, LondonProducer: Phil Tinline.

Melvyn Bragg and guests discuss the Great Wall of China.The Great Wall is not a single Wall. It is not visible from space, contrary to popular belief, as it is much too thin. But it remains a spectacular architectural and historical phenomenon.The Great Wall's military importance, and its symbolic power, have varied widely in its long existence, as its place in Chinese life has shifted with the country's history. It was initially constructed at the command of the first Emperor, from 221 BC, and was a combination of the various protective walls that had been built by the smaller states which he had conquered and merged to form China. The original Wall was made of pounded earth, and in places the wind-carved remains of this two thousand year old construction are still visible. But the Wall which is familiar to us today is the work of the Ming Dynasty, and its vast programme of reinforcement - prompted by a renewed threat from the Mongols in the north. In the 17th century, amazed Jesuits sent back reports to Europe about the Wall, and ever since it has held a powerful place in the imagination of the West. Some scholars argue that this in turn has shaped the modern Chinese appreciation of their astounding inheritance.Julia LovellLecturer in Chinese History at Birkbeck College, University of LondonRana MitterProfessor of the History and Politics of Modern China at the University of OxfordFrances WoodHead of the Chinese Section at the British LibraryPRODUCER: PHIL TINLINE.

Melvyn Bragg and guests discuss Roman Satire. Much of Roman culture was a development of their rich inheritance from the Greeks. But satire was a form the Romans could claim to have invented. The grandfather of Roman satire, Ennius, was also an important figure in early Roman literature more generally. Strikingly, he pioneered both epic and the satirical mockery of epic.But the father of the genre, Lucilius, is the writer credited with taking satire decisively towards what we now understand by the word: incisive invective aimed at particular personalities and their wrongs.All this happened under the Roman Republic, in which there was a large measure of free speech. But then the Republic was overthrown and Augustus established the Empire.The great satirist Horace had fought to save the Republic, but now reinvented himself as a loyal citizen of the Imperium. His satirical work explores the strains and hypocrisies of trying to maintain an independent sense of self at the heart of an autocracy.This struggle was deepened in the work of Persius, whose Stoicism-inflected writing was a quietist attempt to endure under the regime without challenging it.The work of the last great Roman satirist, Juvenal, was famously savage - yet his targets were either generic or long dead. So was satire a conservative or a radical genre? Was it cynical or did it aim to 'improve' people? Did it have any real impact? And was it actually funny?With:Mary BeardProfessor of Classics at Cambridge UniversityDenis FeeneyProfessor of Classics and Giger Professor of Latin at Princeton UniversityDuncan KennedyProfessor of Latin Literature and the Theory of Criticism at the University of BristolProducer: Phil Tinline.

Melvyn Bragg and guests discuss the rise and fall of the Zulu Nation.At the beginning of the 19th century, the Zulus were a small pastoral community of a bare few thousand people in the eastern part of what is now South Africa. Their territory was limited to about ten square miles.But within a decade, led by their warrior king, Shaka, they had managed to carve out an empire with a population of many tens of thousands.Shaka was a skilled politician, successfully co-opting many neighbouring peoples into his kingdom as his conquests advanced its borders.He remains best known as a world-class military strategist, who deployed new weapons, and a devastatingly effective technique of encircling enemy troops.But the ground for the Zulus' breathtaking expansion was shaped in part by the destabilising advance of European settlers.It eventually brought the Zulu into confrontation both with the Afrikaners, as at the Battle of Blood River in 1838, and with the British.In the mid-19th century, the Zulu and the British achieved a sustained period of peaceful co-existence.But, especially after the discovery of diamonds began to transform the southern African economy, British priorities changed, and they began to push for a single confederation of the various provinces and colonies.Zululand's independence became an obstacle, and in 1879 the British invaded.On 22 January 1879, the Zulu were unable to overrun a tiny garrison of invaders at Rorke's Drift.Yet on the same day, at the Battle of Isandhlwana, they inflicted a shocking defeat on the well-armed forces of the British Empire - all the more impressive given that the Zulu soldiers were predominantly armed with spears.Nonetheless, the British invasion of Zululand was ultimately successful, and precipitated first annexation, then the kingdom's absorption into the province of Natal (today, KwaZulu-Natal).During their heyday and in the wake of their decline alike, the Zulu became the subject of much myth-making.To the British, the 'Black Napoleon' figure of Shaka, and the vivid image of a proud warrior race, made the Zulu an object of admiration, fear, and appalled fascination, even as the Army moved to subjugate them.And in the decades since the demise of their independent kingdom, the triumphs of the 19th century long remained an important element of the Zulus' collective self-image.With:Saul DavidProfessor of War Studies at the University of BuckinghamSaul DubowProfessor of History at the University of SussexShula MarksEmeritus Professor of History at the School of Oriental and African Studies, University of LondonProducer: Phil Tinline.

Melvyn Bragg and guests discuss the life and works of William Hazlitt. Hazlitt is best known for his essays, which ranged in subject matter from Shakespeare, through his first meeting with Samuel Taylor Coleridge, to a boxing match. What is less well-known, however, is that he began his writing life as a philosopher, before deliberately abandoning the field for journalism. Nonetheless, his early reasoning about the power of the imagination to take human beings beyond narrow self-interest, as encapsulated in his 'Essay on the Principles of Human Action', shines through his more popular work.Hazlitt is a figure full of contradictions - a republican who revered Napoleon, and a radical who admired the conservative philosopher Edmund Burke. His reputation suffered terribly from his book 'Liber Amoris', a self-revealing memoir of his infatuation with his landlady's daughter. But in the Victorian and Edwardian eras, his importance was acknowledged by writers like Charles Dickens, Robert Louis Stevenson and Ford Madox Ford. In the 180 years since his death, his stature as perhaps the finest essayist in the language has grown and grown. With:Jonathan BateProfessor of English Literature at the University of Warwick Anthony GraylingProfessor of Philosophy at Birkbeck College, University of LondonUttara NatarajanSenior Lecturer in the Department of English and Comparative Literature at Goldsmiths College, University of LondonProducer: Phil Tinline.

Melvyn Bragg presents the second of a two part discussion about the history of the city. George Stephenson invented rail transport in the north-east of England in the 1820s, but it was not until over twenty years later that rail networks began to spring up to ferry workers in and out of the centre of British cities. When they did, this had a vast, transforming effect on the whole nature of cities - taking the pressure off dense, overcrowded central areas, but helping cities like London explode outwards.Victorian London was widely held at the time to be rather chaotic - especially in comparison with the grandiose, highly-orchestrated developments in continental European cities like Paris and Barcelona.The process of transformation was given another fillip by the introduction of the motor car. In this, the final part of a two-part special edition of 'In Our Time' exploring the development of cities, we're going to examine how Stephenson's invention transformed cities almost beyond recognition, and follow the story up to the present day.Peter Hall is Professor of Planning and Regeneration at The Bartlett School of Planning, University College London; Tristram Hunt is lecturer in History at Queen Mary College at the University of London; and Ricky Burdett is Professor of Urban Studies at the London School of Economics.

Melvyn Bragg presents the first of a two-part discussion about the history of the city. With Peter Hall, Julia Merritt and Greg Woolf.The story of cities is widely held to begin in the 8th millennium BC in Mesopotamia. By 4000 BC, there were cities in the Indus Valley, by 3000 BC in Egypt, and by 2000 BC in China. What happened in the west was the furthest ripple of that phenomenon. In 1000 BC Athens still only had a population of one thousand. At its height, Athens' position as a powerful Mediterranean trading city allowed it to become the birthplace of much that would later characterise western cities, from politics through architecture to culture. Then, early in the first millenium AD, the world saw its first million-strong city: Rome. Maintaining a population of this size required stupendous feats of organisation and ingenuity. But in following centuries, as Rome declined and fell, the city itself, in the west at least, declined too; power emanated from kings and their mobile courts, rather than particular settlements.In China, urban trading posts continued to flourish, but their innovative energy dwindled before the end of the first millennium. Between 1150 and the onset of the Black Death in 1350, the city underwent a resurgence in Europe. City-states developed in Italy and in Germany. At this stage, there was no omnipotent power-centre to match Ancient Rome. But with the growth of sea and then ocean trade, and the centralisation of power in capitals ruling nation-states, cities like London, Paris, Madrid, Amsterdam and St Petersburg became increasingly wealthy, dynamic and ostentatious. By 1801, one of these - London - finally matched Ancient Rome's peak population of a million. Along the way, the city had become an ideal to be revered and a spectre to be feared.Peter Hall is Professor of Planning and Regeneration at The Bartlett School of Planning, University College London; Julia Merritt is Associate Professor of History at the University of Nottingham; Greg Woolfis Professor of Ancient History at the University of St Andrews.

Melvyn Bragg and guests David Jackson, Dorothy Rowe and Alastair Wright discuss the work of the Norwegian artist Edvard Munch, focusing on his most famous painting, The Scream.First exhibited in 1893 in Berlin, The Scream was the culmination of Munch's magnum opus, a series of paintings called The Frieze of Life. This depicted the course of human existence through burgeoning love and sexual passion to suffering, despair and death, in Munch's highly original, proto-expressionist style. His titles, from Death in the Sickroom, through Madonna to The Vampire, suggest just how directly and unironically he sought to depict the anxieties of late-19th century Europe.But against all Munch's images, it is The Scream which stands out as the work which has seared itself into the Western imagination. It remains widely celebrated for capturing the torment of existence in what appeared to many in Munch's time to be a frightening, godless world.Munch himself endured a childhood beset by illness, madness and bereavement. At 13, he was told by his father that his tuberculosis was fatal. But he survived and went on to become a major figure first in the Norwegian, then the European, avant-garde. He became involved with two of the great playwrights of the period. He collaborated with his fellow countryman Henrik Ibsen and became a close friend of the tempestuous Swede August Strindberg. He admired the work of Post-Impressionist painters such as Paul Gauguin and Vincent van Gogh and the philosophy of Friedrich Nietzsche, all of whom influenced his art. Munch's own influence resonated through the 20th century, from German Expressionism to Andy Warhol and beyond. His work, particularly The Scream, remains powerful today.David Jackson is Professor of Russian and Scandinavian Art Histories at the University of Leeds; Dorothy Rowe is Senior Lecturer in the History of Art at the University of Bristol; Alastair Wright is University Lecturer in the History of Art at St John's College, University of Oxford.

Melvyn Bragg and guests discuss the life and mythologisation of Boudica.On the eve of battle with the Roman Empire, an East Anglian leader roused her forces by declaring: 'It is not as a woman descended from noble ancestry, but as one of the people that I am avenging lost freedom'. Her name was Boudica, warrior Queen of the Iceni.In 60AD, Boudica's husband Prasutagus died and Roman troops tried to incorporate his lands into their Empire. Soldiers publicly flogged Boudica and raped her daughters. In retaliation, she led an army of tribesmen and sacked Camulodunum, modern day Colchester, before marching on London. Such was the ferocity of Boudica's attack that she came close to driving the Roman Imperial power out of Britain before she was finally defeated.Boudica was largely forgotten in the Middle Ages, but her image reappeared during the rule of Elizabeth I as a striking symbol of female power and heroism, before being denigrated by Elizabeth's heir, James I. In Victorian Britain, Boudica once again emerged, this time as a symbol of British Imperial power. The challenger to the Roman Empire had been transformed into the icon of the British Empire and to this day her statue stands guard outside the Houses of Parliament.With Juliette Wood, Associate Lecturer in Folklore at Cardiff University; Richard Hingley, Professor of Roman Archaeology at Durham University; and Miranda Aldhouse-Green, Professor of Archaeology in the School of History and Archaeology at Cardiff University.

Melvyn Bragg and guests Usha Goswami, Annette Karmiloff-Smith and Denis Mareschal discuss what new research reveals about the infant brain.For obvious reasons, what happens in the minds of very young, pre-verbal children is elusive. But over the last century, the psychology of early childhood has become a major subject of study. Some scientists and researchers have argued that children develop skills only gradually, others that many of our mental attributes are innate. Sigmund Freud concluded that infants didn't differentiate themselves from their environment. The pioneering Swiss child psychologist Jean Piaget thought babies' perception of the world began as a 'blooming, buzzing confusion' of colour, light and sound, before they developed a more sophisticated worldview, first through the senses and later through symbol. More recent scholars such as the leading American theoretical linguist Noam Chomsky have argued that the fundamentals of language are there from birth. Chomsky has famously argued that all humans have an innate, universally applicable grammar.Over the last ten to twenty years, new research has shed fresh light on important aspects of the infant brain which have long been shrouded in mystery or mired in dispute, from the way we start to learn to speak to the earliest understanding that other people have their own minds. With:Usha Goswami, Professor of Education at the University of Cambridge and Director of its Centre for Neuroscience in Education Annette Karmiloff-Smith, Professorial Research Fellow at the Centre for Brain and Cognitive Development at the Department of Psychological Sciences, Birkbeck College, University of LondonDenis Mareschal, Professor of Psychology at the Centre for Brain and Cognitive Development at Birkbeck College, University of London.

Melvyn Bragg and guests Justin Champion, Susan Hardman Moore and Diarmaid MacCulloch discuss the ideas of the religious reformer John Calvin - the theology known as Calvinism, or Reformed Protestantism - and its impact. John Calvin, a Frenchman exiled to Geneva, became a towering figure of the 16th century Reformation of the Christian Church. He achieved this not through charismatic oratory, but through the relentless rigour of his analysis of the Bible. In Geneva, he oversaw an austere, theocratic and sometimes brutal regime. Nonetheless, the explosion of printing made his theology highly mobile. The zeal he instilled in his followers, and the persecution which dogged them, rapidly spread the faith across Europe, and on to the New World in America. One of Calvin's most striking tenets was 'predestination': the idea that, even before the world began, God had already decided which human beings would be damned, and which saved. The hope of being one of the saved gave Calvinists a driving energy which has made their faith a galvanic force in the world, from business to politics. Anxiety about salvation, meanwhile, led to a constant introspection which has left its mark on literature.Justin Champion is Professor of the History of Early Modern Ideas at Royal Holloway, University of London; Susan Hardman Moore is Senior Lecturer in Divinity at the University of Edinburgh; Diarmaid MacCulloch, Professor of the History of the Church at the University of Oxford.

Melvyn Bragg and guests Faisal Devji, Shruti Kapila and Chandrika Kaul discuss the Indian Mutiny of 1857 and the rebellion which followed.On 10th May 1857 Indian soldiers from the Bengal section of the East India Company's army rose up and shot their British officers. By nightfall the troops had marched on Delhi and the aged Mughal emperor Bahadur Shah II had been nominally restored to power. Nearly 15 months later, after great violence on both sides, the revolt was suppressed, but it left British rule in India transformed and, arguably, doomed.The trigger for the Mutiny was a rumour that cartridges for the new British rifles were coated with pig and cow fat, thereby insulting both Hindu and Muslim troops. But the Indian Rebellion was also a more complex story of economic strains, religious insensitivity and well-intentioned but provocative liberal reforms.The events of 1857 have resonated through history and have been appropriated and mythologised by the British press and Indian nationalists alike. However, the shocking violence of the Rebellion on both sides has meant that it has defied attempts to fit it into a coherent narrative structure. It has overshadowed British foreign policy and Indian politics ever since.Chandrika Kaul is Lecturer in Imperial and Indian History at the University of St Andrews; Faisal Devji is University Reader in Indian History at St Antony's College, University of Oxford; Shruti Kapila is University Lecturer in History and Fellow and Director of Studies at Corpus Christi College, University of Cambridge.

Melvyn Bragg and guests John Barrow, Colva Roney-Dougal and Marcus du Sautoy explore the unintended consequences of mathematical discoveries, from the computer to online encryption, to alternating current and predicting the path of asteroids.In his book The Mathematician's Apology (1941), the Cambridge mathematician GH Hardy expressed his reverence for pure maths, and celebrated its uselessness in the real world. Yet one of the branches of pure mathematics in which Hardy excelled was number theory, and it was this field which played a major role in the work of his younger colleague, Alan Turing, as he worked first to crack Nazi codes at Bletchley Park and then on one of the first computers.Melvyn Bragg and guests explore the many surprising and completely unintended uses to which mathematical discoveries have been put. These include:The cubic equations which led, after 400 years, to the development of alternating current - and the electric chair.The centuries-old work on games of chance which eventually contributed to the birth of population statistics.The discovery of non-Euclidean geometry, which crucially provided an 'off-the-shelf' solution which helped Albert Einstein forge his theory of relativity.The 17th-century theorem which became the basis for credit card encryption.In the light of these stories, Melvyn and his guests discuss how and why pure mathematics has had such a range of unintended consequences.John Barrow is Professor of Mathematical Sciences at the University of Cambridge and Professor of Geometry at Gresham College, London; Colva Roney-Dougal is Lecturer in Pure Mathematics at the University of St Andrews; Marcus du Sautoy is Charles Simonyi Professor for the Public Understanding of Science and Professor of Mathematics at the University of Oxford.

Melvyn Bragg and guests Robert Hoyland, Robert Irwin and Hugh Kennedy discuss the life and ideas of the 14th-century Arab philosopher of history Ibn Khaldun.Ibn Khaldun was a North African statesman who retreated into the desert in 1375. He emerged having written one of the most important ever studies of the workings of history.Khaldun was born in Tunis in 1332. He received a supremely good education, but at 16 lost many of his family to the Black Death. His adult life was similarly characterised by sharp turns of fortune. He built a career as a political operator in cities from Fez to Granada. But he often fared badly in court intrigues, was imprisoned and failed to prevent the murder of a fellow statesman. In 1375, he withdrew into the Sahara to work out why the Muslim world had degenerated into division and decline. Four years later, he had completed not only a history of North African politics but also, in the book's long introduction, one of the great studies of history. Drawing on both regional history and personal experience, he set out a bleak analysis of the rise and fall of dynasties. He argued that group solidarity was vital to success in power. Within five generations, though, this always decayed. Tired urban dynasties inevitably became vulnerable to overthrow by rural insurgents.Later in life, Ibn Khaldun worked as a judge in Egypt, and in 1401 he met the terrifying Mongol conqueror Tamburlaine, whose triumphs, Ibn Khaldun felt, bore out his pessimistic theories.Over the last three centuries Ibn Khaldun has been rediscovered as a profoundly prescient political scientist, philosopher of history and forerunner of sociology - one of the great thinkers of the Muslim world.Robert Hoyland is Professor of Islamic History at the University of Oxford; Robert Irwin is Senior Research Associate of the School of Oriental and African Studies at the University of London; Hugh Kennedy is Professor of Arabic in the School of Oriental and African Studies at the University of London.

Melvyn Bragg and guests Rosemary Ashton, Dinah Birch and Valentine Cunningham discuss George Eliot's novel Silas Marner.Published in 1861, Silas Marner is by far Eliot's shortest and seemingly simplest work. Yet beneath the fairytale-like structure, of all her novels it offers the most focused expression of Eliot's moral view. Influenced by the deconstruction of Christianity pioneered by leading European thinkers including Auguste Comte and Ludwig Feuerbach, Silas Marner is a highly sophisticated attempt to translate the symbolism of religion into purely human terms.The novel tells the story of Silas, a weaver who is thrown out of his religious community after being falsely charged with theft. Silas is embittered and exists only for his work and his precious hoard of money - until that money is stolen, and an abandoned child wanders into his house.By the end of her lifetime, George Eliot was the most powerful female intellectual in the country. Her extraordinary range of publications encompassed novels, poetry, literary criticism, scientific and religious texts. But beneath her fierce intellecualism was the deep convinction that for society to continue, humans must connect with their fellow humans. And it is this idea that forms the core of her writing.Rosemary Ashton is Quain Professor of English Language and Literature at University College, London; Dinah Birch is Professor of English at Liverpool University; And Valentine Cunningham is Professor of English Language and Literature at Corpus Christi, University of Oxford.

Melvyn Bragg and guests Karin Bowie, Murray Pittock and Daniel Szechi discuss the Glencoe Massacre of 1692, why it happened, and its lasting repercussions.On a winter night in 1692, a company of soldiers quartered with the MacDonalds of Glencoe rose early and slaughtered their hosts. About 38 men, women and children were killed. Their homes were torched and many survivors died as they fled into the snow. This mass killing was branded by a Scottish Parliamentary Commission of Inquiry as 'murder under trust'.Why did this still infamous atrocity happen? The answer takes in the seismic impact of the Glorious Revolution of 1688 and the ongoing struggles for religious power that swept through the country in the 17th century. Crucially, Britain was at war in Europe, and the distracting nature of the conflict in Scotland, as far as the London government was concerned, helped to give the events at Glencoe their particular character. But this is also a story of a deadline and the fatal consequences of the Glencoe MacDonalds' attempts to meet it - and of how their technical failure to do so was exploited.The Glencoe Massacre had a severe impact on the reputation of the government of the Protestant King William III, who had ousted the Catholic James II with the support of the English and Scottish Parliaments only four years earlier. Some historians contend that it pushed the two states along the road to the Act of Union of 1707. Karin Bowie is Lecturer in Scottish History at the University of Glasgow; Murray Pittock is Bradley Professor of English Literature at the University of Glasgow; Daniel Szechi is Professor of Early Modern History at the University of Manchester.

Melvyn Bragg and guests Raymond Geuss, Esther Leslie and Jonathan Rée discuss the Frankfurt School.This group of influential left-wing German thinkers set out, in the wake of Germany's defeat in the First World War, to investigate why their country had not had a revolution, despite the apparently revolutionary conditions that spread through Germany in the wake of the 1918 Armistice. To find out why the German workers had not flocked to the Red Flag, Theodor Adorno, Max Horkheimer, Walter Benjamin and others came together around an Institute set up at Frankfurt University and began to focus their critical attention not on the economy, but on culture, asking how it affected people's political outlook and activities. But then, with the rise of the Nazis, they found themselves fleeing to 1940s California. There, their disenchantment with American popular culture combined with their experiences of the turmoil of the interwar years to produce their distinctive, pessimistic worldview. With the defeat of Nazism, they returned to Germany to try to make sense of the route their native country had taken into darkness. In the 1960s, the Frankfurt School's argument - that most of culture helps to keep its audience compliant with capitalism - had an explosive impact. Arguably, it remains influential today.Raymond Geuss is a professor in the Faculty of Philosophy at the University of Cambridge; Esther Leslie is Professor in Political Aesthetics at Birkbeck College, University of London; Jonathan Rée is a freelance historian and philosopher, currently Visiting Professor at Roehampton University and at the Royal College of Art.

As part of the BBC's year of science programming, Melvyn Bragg looks at the history of the oldest scientific learned society of them all: the Royal Society. The horrors of the First World War were a shocking indictment of the power of science. Picking up the thread at this hiatus in scientific optimism, this programme, recorded in the current home of the Royal Society in Carlton House Terrace in London, looks at the more subtle, discreet role the Society played in the 20th century, such as secretly arranging for refugee scientists to flee Germany, co-ordinating international scientific missions during the Cold War and quietly distributing government grant money to fund the brightest young researchers in the land. As ever more important scientific issues face the world and Britain today, the programme asks how well placed the Royal Society is to take an important lead in the future.

As part of the BBC's year of science programming, Melvyn Bragg looks at the history of the oldest scientific learned society of them all: the Royal Society. The 19th century blooms scientifically with numerous alternative, specialist learned societies and associations, all threatening the Royal Society's pre-eminence. Attempts to reform the membership criteria - marking scientific leadership's painful transition from patronage to expertise - are troubled, and organisations such as the British Association for the Advancement of Science (now the BSA) excite and enliven scientific discourse outside of London. Science becomes a realistic career and a path of improvement, and by the time HG Wells writes science fiction at the end of the 19th century, there are sufficient numbers of interested, informed readers to suggest that Edwardian society contained the beginnings of a scientific society.

As part of the BBC's year of science programming, Melvyn Bragg looks at the history of the oldest scientific learned society of them all: the Royal Society. Programme two begins in the coffee house Isaac Newton and the fellows of the early 18th century frequented. At the Royal Observatory, Greenwich, we learn how Newton's feud with the Astronomer Royal John Flamsteed tested the lines between government-funded research and public access. In the age of exploration, senior fellows accompany naval expeditions, such as Cook's expedition to Tahiti and subsequent discovery of Australia. International relations are fostered between scientists such as Benjamin Franklin, whose house in London serves as live-in lab and de facto American embassy. By the end of the century the President, Sir Joseph Banks, successfully embeds the Royal Society in the imperial bureaucratic hub of the new Somerset House. But while senior fellows concentrated on foreign fields, a more radical, dissident science and manufacturing base wrought the Industrial Revolution right under their noses.

As part of the BBC's year of science programming, Melvyn Bragg looks at the history of the oldest scientific learned society of them all: the Royal Society. Melvyn travels to Wadham College, Oxford, where under the shadow of the English Civil War, the young Christopher Wren and friends experimented in the garden of their inspirational college warden, John Wilkins. Back in London, as Charles II is brought to the throne from exile, the new Society is formally founded one night in Gresham College. When London burns six years later, it is two of the key early Fellows of the Society who are charged with its rebuilding. And, as Melvyn finds out, in the secret observatory in The Monument to the fire, it is science which flavours their plans.

Melvyn Bragg and guests John Mullan, Karen O'Brien and Barbara Taylor discuss the life and ideas of the pioneering British Enlightenment thinker Mary Wollstonecraft.Mary Wollstonecraft was born in 1759 into a middle-class family whose status steadily sank as her inept, brutal, drunken father frittered away the family fortune. She did what she could to protect her mother from his aggression; meanwhile, her brother was slated to inherit much of the remaining fortune, while she was to receive nothing.From this unpromising but radicalising start, Wollstonecraft's career took a dizzying trajectory through a bleak period as a governess to becoming a writer, launching a polemical broadside against the political star of the day, witnessing the bloodshed of the French Revolution up close, rescuing her lover's stolen ship in Scandanavia, then marrying one of the leading philosophers of the day, William Godwin, and with him having a daughter who - though she never lived to see her grow up - would go on to write Frankenstein.But most importantly, in 1792, she published her great work, A Vindication of the Rights of Woman, which marks her out as one of the great thinkers of the British Enlightenment, with a much stronger, more lasting influence than Godwin. The Vindication was an attempt to apply the Enlightenment logic of rights and reason to the lives of women. Yet it was not a manifesto for the extension of the vote or the reform of divorce law, but a work of political philosophy. And surprisingly, as recent scholarship has highlighted, it was infused with Rational Dissenting Christianity, which Wollstonecraft had absorbed during her time as a struggling teacher and writer in north London.John Mullan is Professor of English at University College, London; Karen O'Brien is Professor of English at the University of Warwick; Barbara Taylor is Professor of Modern History in the School of Humanities and Social Sciences at the University of East London.

Melvyn Bragg and guests Gregory Irvine, Nicola Liscutin and Angus Lockyer discuss the history of the Samurai and the role of their myth in Japanese national identity.The Samurai have a fearsome historical reputation as a suicidally brave caste of Japanese warriors. During World War Two, kamikaze pilots were photographed climbing into their cockpits with Samurai swords, encapsulating the way the myth of the Samurai's martial ethos kept its power long after their heyday. But the Samurai's role in Japanese culture is much more complex than that. They were deeply engaged with Zen Buddhism and Noh Theatre, and sponsored haiku poetry. After their role in Japan's century of civil war, ending in the early 1600s, they became part of the country's civil service. A 250-year peace toppled them into identity crisis.In the 19th century, with the arrival of the West, they played an important role in the establishment of a Japanese nation-state, not least by restoring the Emperor to power. And in the 20th century the mythological version of the Samurai, designed in part for Western consumption, became integral to a newly forged national identity.Nicola Liscutin is Programme Director of Japanese Studies at Birkbeck College, University of London; Gregory Irvine is Senior Curator Japan at the Victoria and Albert Museum; Angus Lockyer is Lecturer in Japanese History and Chair of the Japan Research Centre at the School of Oriental and African Studies, University of London.

Melvyn Bragg and guests Serafina Cuomo, John O'Connor and Ian Stewart discuss the ideas and influence of the Greek mathematician Pythagoras and his followers, the Pythagoreans.The Ancient Greek mathematician Pythagoras is probably best known for the theorem concerning right-angled triangles that bears his name. However, it is not certain that he actually developed this idea; indeed, some scholars have questioned not only his true intellectual achievements, but whether he ever existed. We do know that a group of people who said they were followers of his - the Pythagoreans - emerged around the fifth century BC. Melvyn Bragg and his guests discuss what we do and don't know about this legendary figure and his followers, and explore the ideas associated with them. Some Pythagoreans, such as Philolaus and Archytas, were major mathematical figures in their own right. The central Pythagorean idea was that number had the capacity to explain the truths of the world. This was as much a mystical belief as a mathematical one, encompassing numerological notions about the 'character' of specific numbers. Moreover, the Pythagoreans lived in accordance with a bizarre code which dictated everything from what they could eat to how they should wash. Nonetheless, Pythagorean ideas, centred on their theory of number, have had a profound impact on Western science and philosophy, from Plato through astronomers like Copernicus to the present day.Serafina Cuomo is Reader in Roman History at Birkbeck College, University of London; John O'Connor is Senior Lecturer in Mathematics at the University of Saint Andrews; Ian Stewart is Emeritus Professor of Mathematics at the University of Warwick.

Melvyn Bragg and guests Tim Barrett, Naomi Standen and Frances Wood discuss the Silk Road, the trade routes which spanned Asia for over a thousand years, carrying Buddhism to China and paper-making and gunpowder westwards.In 1900, a Taoist monk came upon a cave near the Chinese town of Dunhuang. Inside, he found thousands of ancient manuscripts. They revealed a vast amount of evidence about the so-called Silk Road: the great trade routes which had stretched from Central Asia, through desert oases, to China, throughout the first millennium.Besides silk, the Silk Road helped the dispersion of writing and paper-making, coinage and gunpowder, and it was along these trade routes that Buddhism reached China from India. The history of these transcontinental links reveals a dazzlingly complex meeting and mingling of civilisations, which lasted for well over a thousand years.With:Tim Barrett is Professor of East Asian History at the School of Oriental and African Studies; Naomi Standen is Senior Lecturer in Chinese Studies at Newcastle University; Frances Wood is Head of the Chinese Section at the British Library.

Melvyn Bragg and guests Roy Foster, Jeri Johnson and Katherine Mullin discuss A Portrait of the Artist as a Young Man, James Joyce's groundbreaking 1916 novel about growing up in Catholic Ireland.Many novelists choose their own young life as the subject for their first book. But very few have subjected themselves to the intense self-scrutiny of the great Irish novelist James Joyce. In A Portrait of the Artist as a Young Man, published in 1916, Joyce follows his alter ego, Stephen Dedalus, from babyhood to young adulthood. He takes us from Stephen wetting the bed, through a teenage visit to a prostitute, and on through religious terrors to the prospect of freedom. When it was published, the book met with shock at its graphic honesty. Joyce shows Stephen wrestling with the pressures of his family, his Church and his nation. Yet this was far from being a straightforward youthful tirade. Joyce's novel is also daringly experimental, taking us deep into Stephen's psyche. And since its publication almost a century ago, it has had a huge influence on novelists across the world.With: Roy Foster, Carroll Professor of Irish History and Fellow of Hertford College, OxfordJeri Johnson, Senior Fellow in English at Exeter College, OxfordKatherine Mullin, Senior Lecturer in English Literature at the University of Leeds.

Melvyn Bragg and guests Paul Cartledge, Edith Hall and Angie Hobbs discuss Sparta, the militaristic Ancient Greek city-state, and the political ideas it spawned.The isolated Ancient Greek city-state of Sparta was a ferocious opposite to the cosmopolitan port of Athens. Spartans were hostile to outsiders and rhetoric, to philosophy and change. Two and a half thousand years on, Sparta remains famous for its brutally rigorous culture of military discipline, as inculcated in its young men through communal living, and terrifying, licensed violence towards the Helots, the city-state's subjugated majority. Sparta and its cruelty was used as an argument against slavery by British Abolitionists in the early 1800s, before inspiring the Nazis in the 1930s and 1940s.Yet Sparta also produced poets of great skill: Tyrteaus wrote marching songs for the young men; Alcman wrote choral lyrics for the young women. Moreover, the city-state's rulers pioneered a radically egalitarian political system, and its ideals were invoked by Plato. Its inhabitants also prided themselves on their wit: we don't only derive the word 'spartan' from their culture, but the word 'laconic'. Paul Cartledge is AG Leventis Professor of Greek Culture and a Fellow of Clare College, University of Cambridge; Edith Hall is Professor of Classics and Drama at Royal Holloway, University of London; Angie Hobbs is Associate Professor of Philosophy and Senior Fellow in the Public Understanding of Philosophy at the University of Warwick.

Melvyn Bragg and guests Jim Al-Khalili, Frank Close and Frank James discuss the history of the discovery of radiation.Today the word 'radiation' conjures up images of destruction. But in physics, it simply describes the emission, transmission and absorption of energy, and the discovery of how radiation works has allowed us to identify new chemical elements, treat cancer and work out what the stars are made of.Over the course of the 19th century, physicists from Thomas Young, through Michael Faraday to Henri Becquerel made discovery after discovery, gradually piecing together a radically new picture of reality. They explored the light beyond the visible spectrum, connected electricity and magnetism, and eventually showed that heat, light, radio and mysterious new phenomena like 'X-rays' were all forms of 'electromagnetic wave'. In the early 20th century, with the discovery of radioactivity, scientists like Max Planck and Ernest Rutherford completed the picture of the 'electromagnetic spectrum'. This was a cumulative achievement that transformed our vision of the physical world, and what we could do in it.Jim Al-Khalili is Professor of Theoretical Physics and Chair in the Public Engagement in Science at the University of Surrey; Frank Close is Professor of Physics at Exeter College, University of Oxford; Frank James is Professor of the History of Science at the Royal Institution.

Melvyn Bragg and guests Diarmaid MacCulloch, Lucy Wooding and Charlotte Methuen discuss the Siege of Munster in 1534-35.In the early 16th century, the Protestant Reformation revolutionised Christian belief. But one radical group of believers stood out. The Anabaptists rejected infant baptism and formal clergy, and believed that all goods should be held in common. They were also convinced that the Second Coming was imminent.In 1534, in the north-western German city of Munster, a group of Anabaptists attempted to establish the 'New Jerusalem', ready for the Last Days before the coming Apocalypse. But the city was besieged by its ousted Prince-Bishop, and under the reign of its self-appointed King, a 25-year-old Dutchman called Jan van Leyden, it descended into tyranny. Books were burned, dissenters were executed and women were forced to marry. As starvation spread, King Jan lived in luxury with his 16 wives. The horrors of Munster have resonated through the European memory ever since. Diarmaid MacCulloch is Professor of the History of the Church at the University of Oxford; Charlotte Methuen is University Research Lecturer in Ecclesiastical History at the University of Oxford and Lecturer in Church History and Liturgy at Ripon College Cuddesdon; Lucy Wooding is Lecturer in Early Modern History at King's College, London.

Melvyn Bragg and guests AC Grayling, Beatrice Han-Pile and Christopher Janaway discuss the dark, pessimistic philosophy of Arthur Schopenhauer.As a radical young thinker in Germany in the early 19th century, Schopenhauer railed against the dominant ideas of the day. He dismissed the pre-eminent German philosopher Georg Hegel as a pompous charlatan, and turned instead to the Enlightenment thinking of Immanuel Kant for inspiration. Schopenhauer's central idea was that everything in the world was driven by the Will - broadly, the ceaseless desire to live. But this, he argued, left us swinging pointlessly between suffering and boredom. The only escape from the tyranny of the Will was to be found in art, and particularly in music. Schopenhauer was influenced by Eastern philosophy, and in turn his own work had an impact well beyond the philosophical tradition in the West, helping to shape the work of artists and writers from Richard Wagner to Marcel Proust, and Albert Camus to Sigmund Freud.AC Grayling is Professor of Philosophy at Birkbeck College, University of London; Beatrice Han-Pile is Professor of Philosophy at the University of Essex; Christopher Janaway is Professor of Philosophy at the University of Southampton.

Melvyn Bragg and guests Richard Corfield, Jane Francis and Sanjeev Gupta discuss the geological formation of Britain.Around 600 million years ago the island that we now call Britain was in two parts, far to the south of the Equator. Scotland and north-western Ireland were part of a continent (Laurentia) that also included what is now North America. To the south-east, near the Antarctic Circle, meanwhile, you would have found southern Ireland, England and Wales. They formed a mini-continent (Avalonia) with what is now Newfoundland.Over the course of hundreds of millions of years, as they inched their way north, the two parts came together - first as part of a vast unitary continent (Pangaea), later as a promontory on the edge of Europe, and eventually, as sea levels rose, as an island. The story of how Britain came to be where it is now, in its current shape - from the separation of North America and Europe to the carving out of the English Channel - is still being uncovered today.Richard Corfield is Visiting Senior Resarch Fellow at Oxford University; Jane Francis is Professor of Palaeoclimatology at the University of Leeds; Sanjeev Gupta is a Royal Society-Leverhulme Trust Research Fellow at Imperial College London.

Melvyn Bragg and guests John Guy, Clare Jackson and Helen Hackett discuss the death of Queen Elizabeth I and its immediate impact, as a foreign monarch became King in the face of plots and plague.By the spring of 1603, Elizabeth had been Queen for 44 years, and it was clear that she would leave no heir. Many feared that her death would spark insurrection, led perhaps by Puritans, perhaps by Catholics, possibly with the support of Spain. As it became clear that she was dying, Elizabeth's chief minister, Sir Robert Cecil, put into action his covert strategy to secure the succession of King James the Sixth of Scotland.What follows is a story of plots, plague and high politics, as a foreign monarch brought a thoroughly Continental approach to Kingship to the English throne. James's accession was widely welcomed, but his relationship with Cecil was initially tense, and his long procession south from Edinburgh attracted both celebration and criticism. His treatise on Kingship, published on his succession, became a bestseller in London - at least until an outbreak of plague, which also drove him from the capital not long after he arrived. His coronation was hurried through to circumvent plots against him, but his triumphal entry into London had to be delayed until a year after Elizabeth's death. And, as the high expectations which first greeted James were increasingly frustrated, the English started to invoke the ghost of their dead Queen to criticise their new ruler.John Guy is a Fellow of Clare College, University of Cambridge; Clare Jackson is Lecturer and Director of Studies in History at Trinity Hall, University of Cambridge; Helen Hackett is Reader in English at University College, London.

Melvyn Bragg and guests Robert Gildea, Ruth Harris and Robert Tombs discuss the Dreyfus Affair, the 1890s scandal which divided opinion in France for a generation.In 1894, a high-flying Jewish staff officer in the French Army, one Alfred Dreyfus, was convicted of spying for the Prussians. He was publicly humiliated: before a large Paris crowd, he was stripped of his badges of rank and his sword was ceremonially broken. Some of those watching shouted 'Down with Judas!' Then he was dispatched to Devil's Island. But when it emerged that Dreyfus was innocent, a scandal erupted which engulfed the Army, the Church and French society as a whole, exposing deep political rifts, and the nation's endemic anti-Semitism. It pitted Catholics against Republicans, provoked fighting in the streets, and led to the prosecution of the novelist Emile Zola, after his famous J'Accuse polemic against those protecting the real spy and so prolonging Dreyfus's suffering. The Affair became so divisive that it posed a serious threat to the French Republic itself. Finally, in 1905, it prompted the separation of Church and State. The scandal and the anti-Semitism at the heart of it cast a very long shadow. In 1945, when the ultra-nationalist one-time 'anti-Dreyfusard' Charles Maurras was convicted of collaborating with the Nazis, he reacted by declaring that his punishment was Dreyfus's revenge. Robert Gildea is Professor of Modern History at Oxford University; Ruth Harris is Lecturer in Modern History at Oxford University; Robert Tombs is Professor of French History at Cambridge University.

Melvyn Bragg and guests Elizabeth Frood, Richard Parkinson and Kate Spence discuss the Pharaoh Akhenaten, the ruler who brought revolutionary change to ancient Egypt. During his reign, Akhenaten embarked on a profoundly radical project: he set out to transform his people's deepest religious beliefs, moving from a polytheistic tradition to the elevation of a single solar god, Aten. The changes in art and architecture that followed have led some to call him 'history's first individual'. Despite his successors' attempts to obliterate him from the historical record, Akhenaten - and his wife Nefertiti - have been an endless source of fascination and speculation.Richard Parkinson is an Egyptologist at the British Museum; Elizabeth Frood is a Lecturer in Egyptology at the University of Oxford; Kate Spence is a Lecturer in the Archaeology of Ancient Egypt at the University of Cambridge.

Melvyn Bragg discusses the epic feud between Sir Isaac Newton and Gottfried Leibniz over who invented an astonishingly powerful new mathematical tool - calculus. Both claimed to have conceived it independently, but the argument soon descended into a bitter battle over priority, plagiarism and philosophy. Set against the backdrop of the Hanoverian succession to the English throne and the formation of the Royal Society, the fight pitted England against Europe, geometric notation against algebra. It was fundamental to the grounding of a mathematical system which is one of the keys to the modern world, allowing us to do everything from predicting the pressure building behind a dam to tracking the position of a space shuttle.Melvyn is joined by Simon Schaffer, Professor of History of Science at the University of Cambridge and Fellow of Darwin College; Patricia Fara, Senior Tutor at Clare College, University of Cambridge; and Jackie Stedall, Departmental Lecturer in History of Mathematics at the University of Oxford.

Melvyn Bragg discusses the life, works and enduring influence of the medieval philosopher and theologian St Thomas Aquinas with Martin Palmer, John Haldane and Annabel Brett. St Thomas Aquinas' ideas remain at the heart of the official doctrine of the Roman Catholic Church today and inform philosophical debates on human rights, natural law and what constitutes a 'just war'.Martin Palmer is Director of the International Consultancy on Religion, Education and Culture; John Haldane is Professor of Philosophy at the University of St Andrews; Annabel Brett is Lecturer in History at Gonville and Caius College, Cambridge.

Melvyn Bragg and guests Martin Brasier, Richard Corfield and Rachel Wood discuss the Ediacara Biota, the Precambrian life forms which vanished 542 million years ago, and whose discovery proved Darwin right in a way he never imagined. Darwin was convinced that there must have been life before the Cambrian era, but he didn't think it was possible for fossils like the Ediacara to have been preserved. These sea-bed organisms were first unearthed in the 19th century, but were only recognised as Precambrian in the mid-20th century. This was an astonishing discovery. Ever since, scientists have been working to determine its significance. Were the Ediacara the earliest forms of animal life? Or were they a Darwinian dead end? Either way, it is argued, they reveal some of the secrets of the workings of evolution. Richard Corfield is Senior Lecturer in Earth Sciences at the Open University; Martin Brasier is Professor of Palaeobiology at the University of Oxford; Rachel Wood is Lecturer in Carbonate Geoscience at the University of Edinburgh.

Melvyn Bragg discusses Logical Positivism, the eye-wateringly radical early 20th century philosophical movement. The Logical Positivists argued that much previous philosophy was built on very shaky foundations, and they wanted to go right back to the drawing board. They insisted that philosophy - and science - had to be much more rigorous before it started making grand claims about the world. The movement began with the Vienna Circle, a group of philosophically-trained scientists and scientifically-trained philosophers, who met on Thursdays, in 'Red Vienna', in the years after the First World War. They were trying to remould philosophy in a world turned upside down not just by war, but by major advances in science. Their hero was not Descartes or Hegel but Albert Einstein. The group's new doctrine rejected great swathes of earlier philosophy, from meditations on the existence of God to declarations on the nature of History, as utterly meaningless. When the Nazis took power, they fled to England and America, where their ideas put down new roots, and went on to have a profound impact.Melvyn is joined by Barry Smith, Professor of Philosophy at the University of London; Nancy Cartwright, Professor of Philosophy at the London School of Economics; and Thomas Uebel, Professor of Philosophy at Manchester University.

Melvyn Bragg and guests Amira Bennison, Robert Gleave and Hugh Kennedy discuss the split between the Sunni and the Shia. This schism came to dominate early Islam, and yet it did not spring at first from a deep theological disagreement, but rather from a dispute about who should succeed the Prophet Muhammad, and on what grounds. The supporters of the Prophet's cousin Ali argued for the hereditary principle; their opponents championed systems of selection. Ali's followers were to become the Shia; the supporters of selection were to become Sunnis.It is a story that takes us from Medina to Syria and on into Iraq, that takes in complex family loyalties, civil war and the killing at Karbala of the Prophet's grandson. Husayn has been commemorated as a martyr by the Shia ever since, and his death helped to formalise the divide as first a political and then a profoundly theological separation.Amira Bennison is Senior Lecturer in Middle Eastern and Islamic Studies at the University of Cambridge; Robert Gleave is Professor of Arabic Studies at the University of Exeter; Hugh Kennedy is Professor of Arabic in the School of Oriental and African Studies at the University of London.

Melvyn Bragg and guests Jonathan Bate, Julie Sanders and Janet Clare discuss Elizabethan and Jacobean revenge tragedy. From Thomas Kyd's The Spanish Tragedy to Shakespeare's Hamlet, the Elizabethan stage was awash with the bloody business of revenge. Revenge was dramatic, theatrical and hugely popular. It also possessed a fresh psychological depth in the way vengeful minds were portrayed through a new dramatic device: the soliloquy. But these tales of troubled individuals, of family wrongs and the iniquities of power also spoke to an audience for whom the vengeful codes of medieval England were being replaced by Tudor legal systems, by bureaucracy and the demands of the state above those of the individual. Therefore, the heady brew of hatred, madness, violence, evil deeds and righteous anger found on stage reflected the passing of something off stage.Jonathan Bate is Professor of Shakespeare and Renaissance Literature at the University of Warwick; Julie Sanders is Professor of English Literature and Drama at the University of Nottingham; Janet Clare is Professor of Renaissance Literature at the University of Hull.

Melvyn Bragg and guests Mary Beard, Catharine Edwards and Duncan Kennedy discuss the political regime and cultural influence of the Roman Emperor Augustus. Called the Augustan Age, it was a golden age of literature with Virgil's Aeneid and Ovid's Metamorphosis among its treasures. But they were forged amidst creeping tyranny and the demands of literary propaganda. Augustus tightened public morals, funded architectural renewal and prosecuted adultery. Ovid was exiled for his saucy love poems but Virgil's Aeneid, a celebration of Rome's grand purpose, was supported by the regime. Indeed, Augustus saw literature, architecture, culture and morality as vehicles for his values. He presented his regime as a return to old Roman virtues of forbearance, valour and moral rectitude, but he created a very new form of power. He was the first Roman Emperor and, above all, he established the idea that Rome would be an empire without end. Catharine Edwards is Professor of Classics and Ancient History at Birkbeck College, University of London; Duncan Kennedy is Professor of Latin Literature and the Theory of Criticism at the University of Bristol; Mary Beard is Professor of Classics at Cambridge University.

Melvyn Bragg and guests Justin Champion, Diane Purkiss and David Wootton discuss the trial of Charles I, recounting the high drama in Westminster Hall and the ideas that led to the execution.Begun on 20th January 1649, the trial culminated in the epoch-making execution of an English monarch. But on the way it was a drama of ideas about kingly authority, tax, parliamentary power and religion, all suffused with personal vendettas, political confusion and individual courage. It was also a forum in which the newly-ended Civil War and the events of Charles's reign were picked over by the people who had experienced them. Melvyn and guests recount the events of the trial, explore the central arguments and see whether, 350 years later, we can work out who really won.Justin Champion is Professor of the History of Early Modern Ideas at Royal Holloway, University of London; Diane Purkiss is a Fellow and tutor at Keble College, Oxford; David Wootton is Professor of History at the University of York.

Melvyn Bragg and guests Helen Bond, John Haldane and John Barclay discuss the influence of St Paul on the early Christian church and on Christian theology generally. St Paul joined the Christian church in a time of confusion and wonder. Jesus had been crucified and resurrected and the Christians believed they were living at the end of the world. Paul's impact on Christianity is vast: he imposed an identity on the early Christians and a coherent theology that thinkers from St Augustine to Martin Luther have grappled with. Crucially, Paul is responsible for changing Christianity from a Jewish reform movement into a separate and universal religion.Helen Bond is Senior Lecturer in the New Testament at the University of Edinburgh; John Haldane is Professor of Philosophy at the University of St Andrews; John Barclay is the Lightfoot Professor of Divinity at Durham University.

Melvyn Bragg and guests Steve Jones, Bill Amos and Eleanor Weston discuss the evolutionary history of the whale. The ancestor of all whales alive today was a small, land-based mammal with cloven hoofs, perhaps like a pig or a big mole. How this creature developed into the celebrated leviathan of the deep is one of the more extraordinary stories in the canon of evolution. The whale has undergone vast changes in size, has moved from land to water, lost its legs and developed specialised features such as filter feeding and echo location. How it achieved this is an exemplar of how evolution works and how natural selection can impose extreme changes on the body shape and abilities of living things. How the story of the whales was pieced together also reveals the various forms of evidence - from fossils to molecules - that we now use to understand the ancestry of life on Earth.Steve Jones is Professor of Genetics at University College London; Eleanor Weston is a mammalian palaeontologist at the Natural History Museum, London; Bill Amos is Professor of Evolutionary Genetics at Cambridge University.

Melvyn Bragg and guests Andrew Wheatcroft, Claire Norton and Jeremy Black discuss the Ottoman siege of Vienna in 1683, when the Ottoman Empire tried to capture the capital city of the Hapsburg monarchs. The ensuing tale of blood and drama helped define the boundaries of Europe. In June 1683, a man called Kara Mustafa made a journey to Vienna. That a Muslim Turk should come to a Catholic city was not unusual, but Kara Mustafa did so at the head of the Ottoman Army. Vienna was the capital of the Hapsburg Empire and he intended to take it. The ensuing siege has been held responsible for many things, from the invention of the croissant to the creation of Viennese coffee. But most importantly, it has come to be seen as a clash of civilisations, one that helped to define a series of boundaries, between Europe and Asia, Christian and Muslim, Hapsburg and Ottoman, that influence the view between Vienna and Istanbul to this day. But to see the siege as a defining moment in east/west relations may be to read back into history an idea that was not true at the time.Claire Norton is Lecturer in History at St Mary's University College, London; Andrew Wheatcroft is Professor of International Publishing at Stirling University; Jeremy Black is Professor of History at the University of Exeter.