In Our Time

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 P

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 Profess

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

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

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

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 Oxfo

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 th

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

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 Profes

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

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, Uni

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 Muse

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

Melvyn Bragg and guests Nicholas Vincent, David Carpenter and Michael Clanchy discuss the Magna Carta, the oft-proclaimed foundation of English liberties.The Magna Carta has been cited ever since its issue in 1215 as a foundation stone of English liberties. It includes clauses of universal justice, some of which are still on the statute book, but also sorted out the fishing rights in the upper Thames. Whether Magna Carta is a genuine proclamation of universal liberty or a hotchpotch of baronial self-interest has been debated ever since. Melvyn and his guests examine the ideas contained within it, assess their legacy and find out what really happened all those years ago in a tent in Runnymede.

Melvyn Bragg and guests Frank Close, Jocelyn Bell Burnell and Ruth Gregory discuss the Vacuum of Space. The idea that there is a nothingness at the heart of nature has exercised philosophers and scientists for millennia, from Thales's belief that all matter was water to Newton's concept of the Ether and Einstein's idea of Space-Time. Recently, physicists have realised that the vacuum is not as empty as we thought and that the various vacuums of nature vibrate with forces and energies, waves and particles and the mysterious phenomena of the Higgs field and dark energy.

Melvyn Bragg and guests discuss the building of St Petersburg, Peter the Great's showcase city for a modern, European Russia. It is a city of ideas. of progress and the Baroque, of Russian identity and Tsarist power. The building of St Petersburg is a testament to Tsarist power but it is also a city of ideas; of progress, of the Baroque and Russian identity. Beset by fire and flood, the city was founded by Peter the Great in 1703 to symbolise a new Russia, one that faced away from the Slavic East and towards the European West. To this end Peter and his heirs imported European architects, craftsmen and merchants to fashion his new capital.The result is a grandiose European city set amidst the freezing swamps of the Baltic coast; a Venice or Rome of the North. Indeed, the Venetian art connoisseur, Francesco Algarotti called St Petersburg ‘a window through which Russia looks on Europe’. It is a city of beauty built upon the cruelty of a tyrant and to this day encapsulates many of the contradictions of Russia.Wi