In Our Time

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.

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.With Simon Dixon, Sir Bernard Pares Professor of Russian History at University College London; Janet Hartley, Professor of International History at the London School of Economics; Anthony Cross, Emeritus Professor of Slavonic Studies at the University of Cambridge

Melvyn Bragg and guests Krista Cowman, June Purvis and Julia Bush discuss suffragism, a name for the various movements to get the vote for women in the 19th and early-20th century. On the 4th June 1913 the Epsom Derby was underway. King George V was there watching his horse Anmer, ridden by Herbert Jones. Also watching was a young woman called Emily Davison. As the horses thundered towards the finish line, Emily Davison stepped through the barrier and threw herself in front of the King's horse and died of her injuries four days later. Davison was a suffragette, a campaigner for the woman's right to vote and her death is perhaps the most powerful image of that entire movement. Emmeline Pankhurst and her Suffragettes are famous for their militant campaign of suicide, violence and direct action, but Suffragism was a broader movement involving letter writing, reasoned argument, journalism and parliamentary petition - all played out across biology, medicine, law, psychology, politics and the military amidst the rising tide of democratic ideas.

Melvyn Bragg and guests David Bradshaw, Daniel Pick and Michele Barrett discuss Aldous Huxley's dystopian 1932 novel, Brave New World. In Act V Scene I of Shakespeare's The Tempest, the character Miranda declares 'O wonder! How many Godly creatures are there here! How beauteous mankind is! O Brave new world! That has such people in it!'. It is perhaps the only line of Shakespeare to be made famous by someone else, for Brave New World is not associated with Prospero's Island of sprites, magic and wondrous noises, but with Aldous Huxley's dystopia of eugenics, soma and zero gravity tennis. A world, incidentally, upon which literary references to Shakespeare would be entirely lost. Brave New World is a lurid, satirical dystopia in which the hopes and fears of the 1930s are writ large and yet the book seems uncannily prescient about our own time. But why did Huxley feel the need to write it and is Brave New World really as dystopian as we are led to believe?