Melvyn Bragg and his guests discuss the medieval scholar Gerald of Wales. Born around the middle of the twelfth century, Gerald was a cleric and courtier. For much of his life he was close to Henry II and the Church hierarchy, and wrote accounts of official journeys he made around Wales and Ireland in their service. Both Anglo-Norman and Welsh by parentage, he had a unique perspective on the political strife of his age. Gerald's Journey Around Wales and Description of Ireland are among the most colourful and informative chronicles of the Middle Ages, and had a powerful influence on later historians.

With:

Henrietta Leyser

Michelle Brown

Huw Pryce

Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Druids, the priests of ancient Europe. Active in Ireland, Britain and Gaul, the Druids were first written about by Roman authors including Julius Caesar and Pliny, who described them as wearing white robes and cutting mistletoe with golden sickles. They were suspected of leading resistance to the Romans, a fact which eventually led to their eradication from ancient Britain. In the early modern era, however, interest in the Druids revived, and later writers reinvented and romanticised their activities. Little is known for certain about their rituals and beliefs, but modern archaeological discoveries have shed new light on them.

With:

Barry Cunliffe

Miranda Aldhouse-Green

Justin Champion

Producer: Thomas Morris.

Melvyn Bragg and his guests discuss Hadrian's Wall, the largest Roman structure and one of the most important archaeological monuments in Britain. Stretching for eighty miles from the mouth of the River Tyne to the Solway Firth and classified today as a World Heritage Site, it has been a source of fascination ever since it came into existence. It was built in about 122 AD by the Emperor Hadrian, and a substantial part of it still survives today. Although its construction must have entailed huge cost and labour, the Romans abandoned it within twenty years, deciding to build the Antonine Wall further north instead. Even after more than a century of excavations, many mysteries still surround Hadrian's Wall, including its exact purpose. Did it have a meaningful defensive role or was it mainly a powerful emperor's vanity project?

With:

Greg Woolf

David Breeze

Lindsay Allason-Jones

Producer: Victoria Brignell.

Melvyn Bragg and his guests discuss the life of the prominent 19th-century social reformer Annie Besant. Born in 1847, Annie Besant espoused a range of causes including secularism, women's rights, Socialism, Irish Home Rule, birth control and better conditions for workers. Described by Beatrice Webb as having "the voice of a beautiful soul", Besant became an eloquent public speaker as well as writing numerous campaigning articles and pamphlets. She is perhaps most famous for the key role she played in the successful strike by female workers at the Bryant and May match factory in East London in 1888, which brought the appalling working conditions of many factory workers to greater public attention.

Later in life she became a follower of theosophy, a belief system bringing together elements of Hinduism, Buddhism and other Eastern religions. She moved to India, its main base, and took on a leading role in the Indian self-rule movement, being appointed the first female president of the Indian National Congress in 1917.

With:

Lawrence Goldman

David Stack

Yasmin Khan

Producer: Victoria Brignell.

Melvyn Bragg and his guests discuss the An Lushan Rebellion, a major uprising against the imperial rule of the Chinese Tang Dynasty. In 755 AD a senior general, An Lushan, orchestrated a plot against Emperor Xuanzong, taking the regime's capital city before declaring a rival dynasty in northern China. The rebellion lasted eight years but was eventually put down by Tang forces. Although the dynasty's authority was restored, it never regained the prosperity of previous generations. The An Lushan Rebellion displaced millions of people and killed many more. It changed the relationship between the Chinese state and neighbouring powers; but it also left a rich cultural legacy in the poetry memorialising this seismic event.With:Frances WoodLead Curator of Chinese at the British LibraryNaomi StandenProfessor of Medieval History at the University of BirminghamHilde de WeerdtFellow and Lecturer in Chinese History at Pembroke College, Oxford.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss 1848, the year that saw Europe engulfed in revolution. Across the continent, from Paris to Palermo, liberals rose against conservative governments. The first stirrings of rebellion came in January, in Sicily; in February the French monarchy fell; and within a few months Germany, Austria, Hungary and Italy had all been overtaken by revolutionary fervour. Only a few countries, notably Britain and Russia, were spared.The rebels were fighting for nationalism, social justice and civil rights, and were prepared to fight in the streets down to the last man. Tens of thousands of people lost their lives; but little of lasting value was achieved, and by the end of the year the liberal revolutions had been soundly beaten.With: Tim BlanningEmeritus Professor of History at the University of CambridgeLucy RiallProfessor of History at Birkbeck, University of LondonMike RapportSenior Lecturer in History at the University of Stirling.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Ming Voyages. In 1405 a Chinese admiral, Zheng He, set sail with an enormous fleet of ships carrying more than 27,000 people. This was the first of seven voyages of discovery which took Zheng and his ships all over the known world, from India to the Gulf of Persia and as far as East Africa. They took Chinese goods, evidence of the might of the Ming Empire, to the people they visited; and they also returned to China with treasure from the places they visited, and exotic items including a live giraffe. These seven voyages were an expression of the might of the Ming Dynasty; but they were regarded by some Chinese courtiers as a wasteful extravagance, and after internal disputes they came to an end in 1433. These extraordinary journeys live on in the imagination and the historical record - and had a profound effect on China's relationship with the rest of the world.With:Rana MitterProfessor of the History and Politics of Modern China at the University of OxfordJulia LovellLecturer in Chinese History at Birkbeck College, University of LondonCraig ClunasProfessor of the History of Art at the University of Oxford.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Minoan Civilisation.In 1900 the British archaeologist Arthur Evans began excavating some ancient ruins at Knossos on the island of Crete. He uncovered an enormous palace complex which reminded him of the mythical labyrinth of King Minos. Evans had in fact discovered the remnants of a Bronze Age society; in honour of Crete's legendary king he named it the Minoan Civilisation.The Minoans flourished for twelve centuries, and their civilisation was at its height around three and a half thousand years ago, when they built elaborate palaces all over the island. They were sophisticated builders and artists, and appear to have invented one of the world's earliest writing systems. Since Evans's discoveries a hundred years ago, we have learnt much about Minoan society, religion and culture - but much still remains mysterious.With:John BennetProfessor of Aegean Archaeology at Sheffield UniversityEllen AdamsLecturer in Classical Art and Archaeology at King's College LondonYannis HamilakisProfessor of Archaeology at the University of Southampton.Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Battle of Stamford Bridge.In the first week of 1066 the English king, Edward the Confessor, died. A young nobleman, Harold Godwinson, claimed that Edward had nominated him his successor, and seized the throne. But he was not the only claimant: in France the powerful Duke of Normandy, William, believed that he was the rightful king, and prepared to invade England.As William amassed his forces on the other side of the Channel, however, an army led by the Norwegian king Harald Hardrada invaded from the North Sea. Harold quickly marched north and confronted the Norsemen, whose leaders included his own brother Tostig. The English won an emphatic victory; but barely three weeks later Harold was dead, killed at Hastings, and the Norman Conquest had begun.With: John HinesProfessor of Archaeology at Cardiff UniversityElizabeth RoweLecturer in Scandinavian History of the Viking Age at Clare Hall, University of CambridgeStephen BaxterReader in Medieval History at King's College LondonProducer: Thomas Morris.

Melvyn Bragg and his guests discuss the life and work of Xenophon.Xenophon, an aristocratic Athenian, was one of the most celebrated writers of the ancient world. Born in around 430 BC, he was a friend and pupil of the great philosopher Socrates. In his twenties he took part in an unsuccessful attempt to overthrow the Persian king Artaxerxes II, and played a key role in guiding the surviving Greek troops - known as the Ten Thousand - back to safety. It was a dangerous journey from deep inside hostile territory, and lasted more than a year. Xenophon's gripping account of this military campaign, the Anabasis, is one of the masterpieces of Greek literature.Xenophon went on to write a history of the Peloponnesian War and its aftermath. But he was not just a historian, and his other works include books about household management, hunting and his mentor Socrates. His advice on the education and behaviour of princes had a significant influence in Renaissance Italy, and his treatise on horsemanship is still widely read today.With:Paul CartledgeA.G. Leventis Professor of Greek Culture at Cambridge UniversityEdith HallProfessor of Classics and Drama at Royal Holloway, University of LondonSimon GoldhillProfessor in Greek Literature and Culture at the University of Cambridge and Fellow and Director of Studies in Classics at King's College.Producer: Thomas Morris.