Melvyn Bragg and guests discuss tea, the first truly global commodity. After air and water, tea is the most widely consumed substance on the planet and the British national drink. In this country it helped define class and gender, it funded wars and propped up the economy of the Empire. The trade started in the 1660s with an official import of just 2 ounces, by 1801 24 million pounds of tea were coming in every year and people of all classes were drinking an average two cups a day. It was the first mass commodity, and the merchant philanthropist Jonas Hanway decried its hold on the nation, “your servants' servants, down to the very beggars, will not be satisfied unless they consume the produce of the remote country of China”.What drove the extraordinary take up of tea in this country? What role did it play in the global economy of the Empire and at what point did it stop becoming an exotic foreign luxury and start to define the essence of Englishness?With Huw Bowen, Senior Lecturer in Economic and Social History at the University of Leicester; James Walvin, Professor of History at the University of York; Amanda Vickery, Reader in History at Royal Holloway, University of London.

Melvyn Bragg and guests discuss the astonishing productivity of the Chinese Golden Age. 400 BC to 200 AD is known as the Axial Age, when great civilisations in Asia and the Mediterranean forged the ideas that dominated the next two thousand years. In China the equivalent to the Golden Age in Greece was the Warring States Period. It was a time of political turmoil, economic change and intellectual ferment that laid the foundations for the first Chinese Empire. Astronomy was systematised, the principles of Yin and Yang were invented, Confucianism grew and Taoism emerged, as a hundred schools of thought are reputed to have vied for the patronage of rival kings.Why was a period of war such a fertile age for culture and thought, what kinds of ideas were developed and how do they still inform the thinking of nearly a fifth of the world’s population?With Dr Chris Cullen, Director of the Needham Research Institute at Cambridge University; Dr Vivienne Lo, Lecturer at the Wellcome Trust Centre for the History of Medicine; Carol Michaelson, Assistant Keeper of Chinese Art in the Department of Oriental Antiquities at the British Museum.

Melvyn Bragg and guests discuss the Vikings’ myths. Thor’s huge hammer, the wailing Valkyrie, howling wolves and fierce elemental giants give a rowdy impression of the Norse myths. But at the centre of their cosmos stands a gnarled old Ash tree, from which all distances are measured and under which Valhalla lies. In the first poem of The Poetic Edda, where the stories of the Norse Gods are laid down in verse, the Seeress describes it in her prophesy: “I know that an ash-tree stands called Yggdrasil,a high tree soaked with shining loamfrom there come the dews which fall in the valley, ever green, it stands over the well of fate.” It is from this tree that the father of the Gods, Odin, will ultimately hang himself: an image of divine sacrifice so problematic for thirteenth century Christians that they left it out when they wrote the myths down.What was the theology that inspired the Vikings and what role did their myths and religion play in their daily lives?With Carolyne Larrington, Tutor in Medieval English at St John’s College, Oxford; Heather O’Donoghue, Vigfusson Rausing Reader in Ancient Icelandic Literature in the Department of English at Oxford University; John Hines, Professor of Archaeology at Cardiff University.

Melvyn Bragg and guests discuss the Mughal Empire which, at its height, stretched from Bengal in the East to Gujarat in the West, and from Lahore in the North to Madras in the South.  It covered the whole of present day northern India, Pakistan, Afghanistan and Bangladesh, and became famous for the Taj Mahal, the Koh-i-Noor and the Peacock Throne.  In 1631 a Dutch naturalist Johannes de Laet published his account of the vast Empire, “the nobles live in indescribable luxury and extravagance, caring only to indulge themselves whilst they can, in every kind of pleasure.  Their greatest magnificence is in their women’s quarters, for they marry three or four wives or sometimes more”.But were they really the opulent despots of European imagination?  If so, how did they maintain such a vast territory?  And to what extent was the success of the British Raj a legacy of their rule? With Sanjay Subrahmanyam, Professor of Indian History and Culture at the University of Oxford; Susan Stronge, Curator in the Asian Department of the Victoria and Albert Museum, London; Chandrika Kaul, Lecturer in Imperial History at the University of St Andrews.

Melvyn Bragg and guests discuss the Battle of Thermopylae. For the historian Herodotus, the Battle of Thermopylae was the defining clash between East and West: “The Persians fell in their scores, for the officers stood behind lashing them forward, forward all the time. Many fell into the sea and were drowned, many more were trampled to death by their comrades ... The Greeks knew they were doomed now the Persians had discovered a way round the hill, and put forth their last ounce of strength, utterly desperate, utterly unsparing of their lives. (King) Leonidas fell in this battle. He had proved himself a great and brave man”.A force of three hundred free Spartans and their King had stood and fallen before an invading army of three million, led by a brutal tyrant. Or so the story goes – such was their courage and its association with freedom that, nearly two and a half thousand years later, William Golding wrote, “A little of Leonidas lies in the fact that I can go where I like and write what I like. He contributed to setting us free”.How important are the Greek/Persian wars to the story of democracy? Was the West and its values really so far removed from life in the Persian Empire?With Tom Holland, historian and author of Persian Fire; Simon Goldhill, Professor in Greek Literature and Culture at King’s College, Cambridge; Edith Hall, Leverhulme Professor of Greek Cultural History at the University of Durham and author of Inventing the Barbarian: Greek Self-Definition through Tragedy.

Melvyn Bragg and guests discuss the feat of astonishing intellectual engineering which provides us with millions of words in hundreds of languages. At the start of the twentieth century, in the depths of an ancient Egyptian turquoise mine on the Sinai peninsular, an archaeologist called Sir Flinders Petrie made an exciting discovery. Scratched onto rocks, pots and portable items, he found scribblings of a very unexpected but strangely familiar nature. He had expected to see the complex pictorial hieroglyphic script the Egyptian establishment had used for over 1000 years, but it seemed that at this very early period, 1700 BC, the mine workers and Semitic slaves had started using a new informal system of graffiti, one which was brilliantly simple, endlessly adaptable and perfectly portable: the Alphabet. This was probably the earliest example of an alphabetic script and it bears an uncanny resemblance to our own.Did the alphabet really spring into life almost fully formed? How did it manage to conquer three quarters of the globe? And despite its Cyrillic and Arabic variations and the myriad languages it has been used to write, why is there essentially only one alphabet anywhere in the world? With Eleanor Robson, historian of Ancient Iraq and Fellow of All Souls College, Oxford; Alan Millard, Rankin Professor Emeritus of Hebrew and Ancient Semitic Languages at the University of Liverpool; Rosalind Thomas, Professor of Greek History at Royal Holloway, University of London.

Melvyn Bragg and guests discuss the infamous St Bartholomew’s Day Massacre. In Paris, in the high summer of 1572, a very unusual wedding was happening in the cathedral of Notre Dame. Henri, the young Huguenot King of Navarre, was marrying the King of France’s beloved sister, Margot, a Catholic. Theirs was a union designed to bring together the rival factions of France and finally end the French Wars of Religion. Paris was bustling with Huguenots and Catholics and, though the atmosphere was tense, the wedding went off without a hitch. And as they danced together at the Louvre, it seemed that the flower of French nobility had finally come together to bury its differences.That wasn’t to be: on St Bartholomew’s Day, four days after the ill-starred nuptials, so many Protestants were killed in the streets of Paris that the River Seine ran red with their blood. Was the wedding a trap? Who was to blame for the carnage and what impact did it have on the Reformation in Europe?With Diarmaid MacCulloch, Professor of the History of the Church at Oxford University and author of a new book: Reformation: Europe’s House Divided 1490-1700; Mark Greengrass, Professor of History at the University of Sheffield; Penny Roberts, Lecturer in History at the University of Warwick.

Melvyn Bragg and guests discuss the centuries old myth of the most romantic noble outlaw. The first printed version of the Robin Hood story begins like this:“Lithe and Lysten, gentylmen/That be of frebore blodeI shall tell of a good yeman/His name was Robyn Hode/Robyn was a proude outlawe/Whyles he walked on groundeSo curteyse an outlawe as he was one/Was never none yfound”.Robin Hood is described as a ‘yeoman’ – a freeman, and though he is courteous there is not even a hint of the aristocrat he later became. In fact, in the early ballads there is no Maid Marian, no Friar Tuck, Robin does not live in the time of bad Prince John, or the crusades, does not lead a large and merry gang, and certainly never robs the rich to give to the poor. Though he always remains a trickster, and a man with a bow in a wood.Why does this most malleable of myths go through so many changes and so many centuries? And was there ever a real outlaw Robin Hood on whom the ballads, plays, novels and movies are based?With Stephen Knight, Professor of English Literature at Cardiff University and author of Robin Hood: A Mythic Biography; Thomas Hahn, Professor of English Literature at the University of Rochester, New York; Dr Juliette Wood, Secretary of the Folklore Society.

Melvyn Bragg and guests discuss events surrounding the medieval division of the Christian Church. In 1054, Cardinal Humbert stormed into the Cathedral of Constantinople and charged down the aisle. In his hand was a Papal Bull – a deed of excommunication - and he slammed it down onto the altar. As he swept out of the startled church, the Papal Legate and his entourage stopped at the door and symbolically shook the sullied dust of Eastern Christianity from their Catholic boots. The Pope of Rome had decreed that the Patriarch of Constantinople was denied his place in heaven, and soon afterwards the Patriarch excommunicated the Pope in return.It was the culmination of an argument over a single word in the Nicene Creed - but after a thousand years of being one Church, so began a permanent rift.But what were the real underlying reasons behind the split, what were its effects and why did it take until December 1965 for the excommunications to be finally revoked?With Henrietta Leyser, medieval historian and Fellow of St Peter’s College, Oxford; Norman Housley, Professor of Medieval History at the University of Leicester; Jonathan Shepard, editor of the Cambridge History of the Byzantine Empire.

Melvyn Bragg and guests discuss the private trading company that helped forge the British Empire. At its peak, its influence stretched from western India to eastern China via the farthest reaches of the Indonesian archipelago. It had a fleet of 130 twelve hundred tonne ships and commanded an army of 200,000 troops that came to dominate the Indian subcontinent. It funded governments, toppled princes and generated spectacular amounts of money from trading textiles and spices. But this wasn’t an empire, it wasn’t even a state, it was a company. The East India Company, founded in 1600, lasted for 258 years before the British state gained full control of its activities. In that time it had redrawn the map of India, built an empire and reinvented the fashions and the foodstuffs of Britain. But how did the East India Company become so powerful? How did it change both India and Britain and how was the idea of a company running a country ever accepted by the British Crown?With Huw Bowen, Senior Lecturer in Economic and Social History at the University of Leicester; Linda Colley, School Professor of History at the London School of Economics; Maria Misra, Fellow and Tutor in Modern History at Keble College, Oxford.