Melvyn Bragg and guests discuss the Divine Right of Kings. In Shakespeare’s Macbeth, the character Malcolm describes the magical healing powers of the king: “How he solicits heaven, Himself best knows; but strangely-visited people, All swoln and ulcerous, pitiful to the eye, The mere despair of surgery, he cures; Hanging a golden stamp about their necks, Put on with holy prayers...”The idea that a monarch could heal with his touch flowed from the idea that a king was sacred, appointed by God and above the judgement of earthly powers. It was called the Divine Right of Kings. The idea resided deep in the culture of 17th century Britain affecting the pomp of the Stuart Kings, the writings of Milton and Shakespeare and the political works of John Locke. It is a story that involves witches, regicide, scrofula, Macbeth, miraculous portraits and some of the greatest poetry in the English language. With Justin Champion, Professor of the History of Early Modern Ideas at Royal Holloway, University of London; Tom Healy, Professor of Renaissance Studies at Birkbeck College, University of London; Clare Jackson, Lecturer and Director of Studies in History at Trinity Hall, Cambridge

Melvyn Bragg and guests discuss the Pilgrim Fathers and their 1620 voyage to the New World on the Mayflower. Every year on the fourth Thursday in November, Americans go home to their families and sit down to a meal. It’s called Thanksgiving and it echoes a meal that took place nearly 400 years ago, when a group of religious exiles from Lincolnshire sat down, after a brutal winter, to celebrate their first harvest in the New World. They celebrated it in company with the American Indians who had helped them to survive.These settlers are called the Pilgrim Fathers. They were not the first and certainly not the largest of the early settlements but their Plymouth colony has retained a hold on the American imagination which the larger, older, violent and money-driven settlement of Jamestown has not.With Kathleen Burk, Professor of Modern and Contemporary History at University College London; Harry Bennett, Reader in History and Head of Humanities at the University of Plymouth; Tim Lockley, Associate Professor of History at the University of Warwick

Melvyn Bragg and guests discuss the Siege of Orléans, when Joan of Arc came to the rescue of France and routed the English army with the help of God. The perfidious English then burnt her as a heretic in Rouen marketplace. At least that's the story we're told but the truth involves the murky world of French court politics, labyrinthine dynastic claims, mass religious hysteria and English military and political incompetenceLooking back on the events that followed, the Duke of Bedford wrote to King Henry VI and declared “all things prospered for you till the time of the siege of Orleans, taken in hand God knoweth by what advice”.But what happened at the siege of Orleans, did Joan of Arc really rescue the city and how significant was the battle in changing the course of the 100 Years' War and the subsequent histories of England and France?With Anne Curry, Professor of Medieval History at the University of Southampton; Malcolm Vale, Fellow and Tutor in History at St John’s College, Oxford; Matthew Bennett, Senior Lecturer at the Royal Military Academy, Sandhurst.

Melvyn Bragg discusses the Opium Wars, a series of conflicts in the 19th Century which had a profound effect on British Chinese relations for generations. Thomas De Quincey describes the pleasures of opium like this: “Thou hast the keys of Paradise, O just, subtle and mighty opium”. The Chinese had banned opium in its various forms several times, citing concern for public morals, but private British traders continued to smuggle large quantities of opium into China from India. In this way, the opium trade became a way of balancing a trade deficit brought about by Britain's own addiction...to Indian tea.The Chinese protested against the flouting of the ban, even writing to Queen Victoria. But the British continued to trade, leading to a crackdown by Lin Tse-Hsu, a man appointed to be China's Opium Drugs Czar. He confiscated opium from the British traders and destroyed it. The British military response was severe, leading to the Nanking Treaty which opened up several of China's ports to foreign trade and gave Britain Hong Kong. The peace didn't last long and a Second Opium War followed. The Chinese fared little better in this conflict, which ended with another humiliating treaty.So what were the main causes of the Opium Wars? What were the consequences for the Qing dynasty? And how did the punitive treaties affect future relations with Britain?With Yangwen Zheng, Lecturer in Modern Chinese History at the University of Manchester; Lars Laamann, Research Fellow in Chinese History at the School of Oriental and African Studies (SOAS), University of London; Xun Zhou, Research Fellow in History at SOAS, University of London

Melvyn Bragg and guests discuss the original Iron Chancellor, Otto Von Bismarck. One of Europe's leading statesmen in the 19th Century he is credited with unifying Germany under the military might of his home state of Prussia. An enthusiastic expansionist, Bismarck undertook a war against Denmark that has become a by-word for incomprehensible conflict. The British Prime Minister, Lord Palmerston, said: “The Schleswig-Holstein question is so complicated, only three men in Europe have ever understood it. One was Prince Albert, who is dead. The second was a German professor who became mad. I am the third and I have forgotten all about it.”After vanquishing Austria and France, Bismark led the new industrialising Germany, managing to remain in power for a further two decades. Bismarck said: “The art of statesmanship is to steer a course on the stream of time” and he founded one of Europe's first welfare states but he was also known for his ruthless tactics, ignoring democratic institutions, dabbling in dirty politics, leaking to the press and bribing journalists. Was the unification of Germany a carefully planned campaign or a series of unpredictable events that Bismarck made the most of? Did his encouragement of militaristic nationalism bear fruit in Nazi Germany, and what is his legacy today in contemporary Germany?With Richard J Evans, Professor of Modern History at the University of Cambridge; Christopher Clark, Reader in Modern European History at the University of Cambridge; and Katharine Lerman, Senior Lecturer in Modern European History at London Metropolitan University

Melvyn Bragg and guests discuss Genghis Khan. Born Temujin in the 12th Century, he was cast out by his tribe when just a child and left to struggle for survival on the harsh Steppes of what is now Mongolia. From these beginnings he went on to become Genghis Khan, leader of the greatest continuous land-based empire the world has ever seen. His conquered territories stretched from the Caspian Sea to the borders of Manchuria, from the Siberian forest to what is now Afghanistan.He was a charismatic commander and a shrewd military tactician. He was swift to promote those who served him well, ignoring race or creed, but vengeful to those who crossed him, killing every inhabitant of resistant towns, even the cats and dogs. Generally regarded as barbarians by their enemies, the Mongol armies were in fact disciplined and effective.So how did Genghis create such an impressive fighting force? How did he draw together such diverse peoples to create a wealthy and successful Empire? And what was his legacy for the territories he conquered?With Peter Jackson, Professor of Medieval History at Keele University; Naomi Standen, Lecturer in Chinese History at Newcastle University;George Lane, Lecturer in History at the School of Oriental and African Studies

Melvyn Bragg and guests discuss the siege of Constantinople in 1453. When Sultan Mehmet the Second rode into the city of Constantinople on a white horse in 1453, it marked the end of a thousand years of the Byzantine Empire. After holding out for 53 days, the city had fallen. And as one contemporary witness described it: “The blood flowed in the city like rainwater in the gutters after a sudden storm”. It was the end of the classical world and the crowning of an Ottoman Empire that would last until 1922.Constantinople was a city worth fighting for – its position as a bridge between Europe and Asia and its triangular shape with a deep water port made it ideal both for trade and defence. It was also rumoured to harbour great wealth. Whoever conquered it would reap rewards both material and political. Earlier attempts to capture the city had largely failed – so why did the Ottomans succeed this time? What difference did the advances in weaponry such as cannons make in the outcome of the battle? And what effect did the fall of Constantinople have on the rest of the Christian world?With Roger Crowley, author and historian; Judith Herrin, Professor of Late Antique and Byzantine Studies at King's College London; Colin Imber, formerly Reader in Turkish at Manchester University.

Melvyn Bragg and guests discuss the Peasants’ Revolt of 1381. “When Adam delved and Eve span, who was then the Gentleman?" these are the opening words of a rousing sermon, said to be by John Ball, which fires a broadside at the deeply hierarchical nature of fourteenth century England. Ball, along with Wat Tyler, was one of the principal leaders of the Peasants’ Revolt – his sermon ends: "I exhort you to consider that now the time is come, appointed to us by God, in which ye may (if ye will) cast off the yoke of bondage, and recover liberty". The subsequent events of June 1381 represent a pivotal and thrilling moment in England’s history, characterised by murder and mayhem, beheadings and betrayal, a boy-King and his absent uncle, and a general riot of destruction and death. By most interpretations, the course of this sensational story threatened to undermine the very fabric of government as an awareness of deep injustice was awakened in the general populace.But who were the rebels and how close did they really come to upending the status quo? And just how exaggerated are claims that the Peasants’ Revolt laid the foundations of the long-standing English tradition of radical egalitarianism? With Miri Rubin, Professor of Early Modern History at Queen Mary, University of London; Caroline Barron, Professorial Research Fellow at Royal Holloway, University of London; Alastair Dunn, author of The Peasants’ Revolt - England’s Failed Revolution of 1381.

Melvyn Bragg and guests discuss the Needham Question; why Europe and not China developed modern technology. What do these things have in common? Fireworks, wood-block printing, canal lock-gates, kites, the wheelbarrow, chain suspension bridges and the magnetic compass. The answer is that they were all invented in China, a country that, right through the Middle Ages, maintained a cultural and technological sophistication that made foreign dignitaries flock to its imperial courts for trade and favour. But then, around 1700, the flow of ingenuity began to dry up and even reverse as Europe bore the fruits of the scientific revolution back across the globe. Why did Modern Science develop in Europe when China seemed so much better placed to achieve it? This is called the Needham Question, after Joseph Needham, the 20th century British Sinologist who did more, perhaps, than anyone else to try and explain it.But did Joseph Needham give a satisfactory answer to the question that bears his name? Why did China’s early technological brilliance not lead to the development of modern science and how did momentous inventions like gunpowder and printing enter Chinese society with barely a ripple and yet revolutionise the warring states of Europe? With Chris Cullen, Director of the Needham Research Institute in Cambridge; Tim Barrett, Professor of East Asian History at SOAS; Frances Wood, Head of Chinese Collections at the British Library.

Melvyn Bragg and guests discuss the Diet of Worms, an event that helped trigger the European Reformation. Nestled on a bend of the River Rhine, in the South West corner of Germany, is the City of Worms. It’s one of the oldest cities in central Europe; it still has its early city walls, its 11th century Romanesque cathedral and a 500-year-old printing industry, but in its centre is a statue of the monk, heretic and founder of the Protestant Reformation, Martin Luther. In 1521 Luther came to Worms to explain his attacks on the Catholic Church to the Holy Roman Emperor, Charles V, and the gathered dignitaries of the German lands. What happened at that meeting, called the Diet of Worms, tore countries apart, set nation against nation, felled kings and plunged dynasties into suicidal bouts of infighting. But why did Martin Luther risk execution to go to the Diet, what was at stake for the big players of medieval Europe and how did events at the Diet of Worms irrevocably change the history of Europe? With Diarmaid MacCulloch, Professor of the History of the Church at Oxford University; David Bagchi, Lecturer in the History of Christian Thought at the University of Hull; Reverend Dr Charlotte Methuen, Lecturer in Reformation History at the University of Oxford.