The Great Pyramid of Giza in Egypt is one of the greatest wonders of the ancient world. It is the largest pyramid ever built and even today, with advanced satellite and thermal imaging and other high tech science, we don’t know everything about the pyramid- exactly what’s inside or how it was built. To explore the history of The Great Pyramid - also known as the Pyramid of Khufu, after the Pharaoh who commissioned it as his tomb - Rajan Datar is joined by Salima Ikram, Distinguished University Professor and Egyptology Unit Head at the American University in Cairo, space archaeologist Sarah Parcak, a National Geographic fellow and Professor at Birmingham University Alabama in the USA, and Professor Joyce Tyldesley, an archaeologist and Egyptologist from the University of Manchester in the UK.

Photo: The Pyramids at Giza (Getty Images)

”People ask me to predict the future, when all I want to do is prevent it.” Ray Bradbury has been acclaimed as the writer most responsible for bringing modern science fiction into the literary mainstream but, as the quote above shows, he regarded himself as the author of modern philosophical fables, rather than a sci-fi writer. In his dystopian works, such as Fahrenheit 451, he holds up a mirror to contemporary society and then transposes it into fantastical and futuristic scenarios. Bradbury was a prolific writer who tried his hand at everything from poems and novels to TV and radio scripts but it’s his early short stories which he produced in his twenties that are perhaps the most imaginative.

To mark the centenary of Bradbury’s birth, Rajan Datar is joined by three Bradbury experts to help him navigate through the author’s prodigious output:

(Photo: Ray Bradbury in Los Angeles, circa 1980. Credit Michael Montfort/Pix/Michael Ochs Archives/Getty Images)

In 476, the last of the Roman emperors in the West was deposed; in 1776, historian Edward Gibbon wrote “The History of the Decline and Fall of the Roman Empire”, and Rome’s fate became a major point of comparison for all empires. In Gibbon's view, instead of inquiring why the Roman empire was destroyed precisely 1300 years before, we should rather be surprised that it had subsisted so long. Ever since, there has been a fascination with what changed in Rome in 476 and why, and whether there were more significant changes earlier or later than that date and, importantly, what stayed the same.

In this edition of The Forum, Rajan Datar explores the ideas about Rome’s Fall with Sarah E. Bond, Associate Professor of History at the University of Iowa, USA; Meaghan McEvoy, Lecturer in Byzantine Studies at Macquarie University in Sydney, Australia; and Peter Heather, Professor of Medieval History at King’s College London, UK.

(Photo: Sack of Rome by the Visigoths led by Alaric I in 410. Coloured engraving. Credit: Prisma/Universal Images Group via Getty Images)

Pablo Picasso is commonly regarded as one of the most influential artists of the 20th Century, changing our way of seeing with his radical innovation and revolutionary approach. As pioneer of Cubism, godfather to the Surrealists, and creator of the enduring anti-war painting Guernica, he produced thousands of paintings in his lifetime, not to mention his sculptures, ceramics, stage designs, poetry and plays.

Rajan Datar discusses his life and work with curators Ann Temkin and Katharina Beisiegel, and art historian Charlie Miller.

(Photo: Pablo Picasso in 1955. Credit: Hulton Archive/Getty Images)

'War and Peace' by the Russian novelist Leo Tolstoy charts the story of Russia during the Napoleonic wars of the early 19th century, covering the pandemonium and brutality of the battlefield, as well as the equally intense dramas and loves of several families. It is a monumental novel, tracking the fortunes of dozens of brilliantly drawn individuals, with a cast of more than six hundred characters, both historical and fictional. So why is 'War and Peace' still such a compelling masterpiece, and why did Tolstoy later disown it?

Joining Bridget Kendall are Dr Galina Alexeeva, head of Research at Yasnaya Polyana, Tolstoy’s former country estate in Russia; Andrei Zorin, Professor of Russian at Oxford University and author of a new biography of Tolstoy, and Professor Donna Orwin, author of 'Simply Tolstoy', who’s from the University of Toronto in Canada.

(Image: Anthony Hopkins as Pierre Bezukhov in the 1972 BBC 20- part dramatization of Leo Tolstoy’s War and Peace. Credit: BBC Copyright pictures)

Geoffrey Chaucer has been called the father of English poetry and the greatest poet in English before Shakespeare. He is best known for The Canterbury Tales, stories told by a band of pilgrims on their way from London to the shrine of Thomas Becket who was murdered in Canterbury Cathedral two centuries before. Chaucer’s was an age of plague, war and revolt and his pilgrims bring insight into the life and values of those tumultuous times, from the bawdy Miller and the earthy Wife of Bath to the corrupt Pardoner and the Knight whose chivalry was increasingly out of step with the times.

Bridget Kendall explores the range of Chaucer’s world with Emily Steiner, Professor of English at University of Pennsylvania; Mary Flannery, Professor of Medieval English Studies at Bern University; and Anthony Bale, Professor of Medieval Studies at Birkbeck College, University of London.

(Image: Portrait of Geoffrey Chaucer based on a 19th century engraving by James Thomson Credit: Stock Montage/Getty Images)

Tango is easy to recognise: those daring steps, the tight hold of the dancing partners, the intense yet melancholy music dominated by the plaintive sounds of the bandoneon. But if you ask what exactly tango is and where it came from, the answer may not be so immediately clear – because it’s more than a genre of music, more than just a style of dance.

Photo: Argentine dancers on stage at the World Tango Championships in 2014 (Getty Images)

In Norse mythology, Valkyries were women who went out into battles to choose the slain warriors who deserved to be in Valhalla, Odin’s place in Asgard, to carry on fighting in preparation for the final apocalyptic confrontation of Ragnarok, between gods and giants. Fighters would see the Valkyries flying through the air or riding on horses, with shields and helmets, some saving the lives and ships of those they favoured, some causing death to those they disliked. These stories of Valkyries and Valhalla offer insights into the lives and values of the people who told them, with the possibility that human women went into battle too.

Bridget Kendall is joined by Sif Rikhardsdottir, Professor and Chair of Comparative Literature at the University of Iceland, Marianne Hem Eriksen, Associate Professor of Archaeology at the Museum of Cultural History, University of Oslo in Norway, and Judith Jesch, Professor of Viking Studies at the University of Nottingham, in the UK.

(Picture: Illustration from The Rhinegold and the Valkyrie, 1910. Artist: Arthur Rackham Credit: Historica Graphica Collection/Heritage Images/Getty Images)

China, Iran, Afghanistan, Syria, Uzbekistan and India: if you went to any of these places a thousand years ago, you would find goods and produce from the others. But how did they get there and why? This week’s Forum explores the ancient pattern of trading networks which criss-crossed the plains, deserts and mountains of China, Central Asia and points further West, and which encouraged not just the exchange of commodities such as silk, paper and horses but ideas and people too.

(Photo: A man rides a horse at Band-e-Amir lake, central Afghanistan, on a former Silk Route that once linked China with Central Asia and beyond. Credit: Getty Images)

Bertha von Suttner’s path to becoming a leading 19th-century pacifist and the first woman to win the Nobel Peace Prize was far from straightforward. The product of the aristocratic and militaristic world of 19th century Bohemia, as a young woman von Suttner eloped to the Caucasus and turned her hand to writing for a living. On her return to Europe she published an acclaimed anti-war novel, Lay Down Your Arms, a work that marked the start of her quest for disarmament. Her long friendship with Alfred Nobel finally bore fruit in the Swedish industrialist’s last will which included the Peace Prize.

Bridget Kendall is joined by Dr. Barbara Burns, Reader in German at Glasgow University, and the editor of a new English edition of Lay Down Your Arms; Dr. Peter van den Dungen, former Lecturer in Peace Studies at the University of Bradford and until recently General Coordinator of the International Network of Museums for Peace; and musician Stefan Frankenberger, the author of an audio book called The Unknown Soldier, In memory of Bertha von Suttner.

[Photo: Bertha von Suttner (nee Kinsky),c.1870 Credit: Hulton Archive/Getty Images]