In Our Time

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 BristolSteve Brusatte Reader and Chancellor's Fellow in Vertebrate Palaeontology at the University of EdinburghandMaria McNamara Senior Lecturer in Geology at University College, CorkProducer: Simon Tillo

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 LondonTim Blanning Emeritus Professor of Modern Europea

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 UniversityRos Bal

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 CollegeLucy Grig Senior Lecturer in Roman History at the University of Edinburghand Greg Woolf Director of the Institute of Classical Studies, University of LondonProducer: 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

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 a

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 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 H

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 SheffieldMM McCabe Professor of Ancient Philosophy Emerita at King's College LondonandJames 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 HallEmily Finer Lecturer in Russian and Comparative

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, t

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 CollegeMiranda Griffin Lecturer in French and Fellow of St Catharine's College, Cambridgea

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 UniversitySarah Barry Lecturer in Chemical Biology at King's College LondonAnd 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 o

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.WithLaura Ashe Associate Professor of English and fellow of Worcester College at the University of OxfordMatthew Treherne Prof

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 Ins

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 CollegeLinda Freedman Lecturer in English and American Literature at University College LondonandParaic Finnerty Reader in English a

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

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 MuseumKate Spence Senior Lecturer in Egyptian Archaeology at Cambridge University and Fellow of Emmanuel Collegeand Richard Parkinson Professor of Egyptology at the University of Oxford and Fellow of the Queen's CollegeProducer: 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, LincolnAmanda Power Associate Professor of Medieval History at the University of Oxford Elly Truitt Associate Professor of Medieval History at Bryn Mawr CollegeProducer: 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