The Forum

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 Professor Salima Ikram, Distinguished University Professor and Egyptology Unit Head at the American University in Cairo, space archaeologist Dr Sarah Parcak, a National Geographic fellow and associate Professor at Birmingham University Alabama in the USA and Dr Joyce Tyldesley, an archaeologist and Egyptologist from the University of Manchester in the UK.Photo: The Pyramids at Giza. (Getty Images)

When the fifteenth century German entrepreneur Johannes Gutenberg pioneered the printing press, he made an indelible mark on the history of communication. Here was a way to print pages in high quality and high quantities, using methods more efficient than had ever been seen before.Rajan Datar and guests explore the story of how the printing press was born, and how it changed our world - from the birth of the modern book to the rise of the information society, and the transformation of fields including scholarship and religion.Rajan is joined by art historian Hala Auji, publisher Michael Bhaskar, scholar Cristina Dondi and the writer John Man.Photo: Circa 1450, A bas-relief of the German printing pioneer Johannes Gutenberg (c 1400 - 1468) checking his work while his assistant turns the press. (Photo by Hulton Archive/Getty Images)

The race to carry out the first human heart transplant 50 years ago was as dramatic as the race between the Americans and the Soviets to the moon. Four surgeons were days away from completing the operation, but it was the outsider, the South African Christiaan Barnard who became the winner, sparking a media frenzy that made him famous overnight all over the world. In this programme, Rajan Datar takes a look at the history of organ transplantation with particular focus on the first human heart transplant in 1967, and asks what it has made possible today and in the future. Joining him are Professor David Cooper, a British heart surgeon who worked with Christiaan Barnard; the South African historian Don Mc Rae; Professor Sharon Hunt, an American cardiologist who carried out pioneering work in the aftercare of heart transplant patients; and Pankaj Chandak, a British-Indian research fellow in transplant surgery.Photo: Surgeons performing a transplant operation. (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)

Throughout history, fragrance has been used to scent both the body and our surroundings. With just one drop, perfume has the potential to stir memories, awaken the senses and even influence how we feel about ourselves. But what’s the story behind this liquid luxury in a bottle, now found on the shelves of bathrooms and department stores worldwide?In this programme, Bridget Kendall and guests explore the modern history of perfume, including its flowering in France and the explosive chemical discoveries that helped to make fine fragrance what it is today. They also explore perfume’s ancient roots and ask: what’s in a name?Bridget is joined by scientist and critic Luca Turin, writer and curator Lizzie Ostrom and the perfumer Thomas Fontaine. Also featuring William Tullett and James McHugh.Photo: Perfume bottles and smelling strips (Getty Images)

A total eclipse of the Sun is a spectacular cosmic event that can even be life changing. The 21st August 2017 sees one of the most accessible eclipses for years, an all-American eclipse crossing the United States for more than two thousand miles from northwest to southeast. And yet throughout the centuries, the sight of a total eclipse - seeing the Sun totally blacked out by the moon – has often caused fear and turmoil. Joining Rajan Datar to find out more about the history of eclipses and what they reveal about the workings of the Sun is the NASA astrophysicist Lika Guhathakurta, the eclipse chaser and psychologist Kate Russo, and Marek Kukula, public astronomer at the Royal Observatory in Greenwich in London.Photo: A total eclipse of the Sun (BBC)

The One Thousand and One Nights are a collection of fantastical stories of flying carpets, magic and genies whose ancient origins go back to the 7th century or earlier. The tales are told by Scheherazade who uses the power of storytelling night after night to stop her Sultan husband from beheading her ... These highly influential stories were brought to the West in the 18th century, when more tales like Aladdin and Ali Baba were said to have been added by the French translator, and it has continued to evolve over the centuries. Rajan Datar and guests explore why these stories became so popular around the world and what they mean to us today. Joining Rajan is Wen Chin Ouyang, Professor of Arabic at SOAS in London; Dr Sandra Naddaff, senior lecturer in Comparative Literature at Harvard University; and the Iranian TV producer Shabnam Rezaei.Photo: Sand Sculpture depicting 1001 Nights of Sheherazade. (Getty Images)

Born six centuries ago, Joan of Arc is regarded as a French national heroine: a peasant girl who, inspired by saintly visions, battled to break the Siege of Orléans and see Charles VII finally crowned King of France in a grand cathedral. But in 1431, she was burned at the stake.In this programme, Bridget Kendall and guests discuss the life and death of this medieval teenage celebrity who helped to shape the course of the Hundred Years War with England. They also reflect on her status as an enduring symbol in popular culture through the ages, including on the stage and the big screen. Bridget is joined by film scholar Robin Blaetz, and historians Juliet Barker, Xavier Helary and Daniel Hobbins.Photo: Joan of Arc: Painting by J D Ingres in the Louvre. (Hulton Archive/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. To get insights into the roots, the culture and even the magic of tango, Rajan Datar is joined by leading tango historians Maria Susana Azzi, Christine Denniston and John Turci-Escobar.Photo: Argentine dancers on stage at the World Tango Championships in 2014 (Getty Images)

Carl Linnaeus, today a largely unknown figure, is one of the giants of natural science. He devised the formal two-part naming system we use to classify all life forms. With Quentin Cooper is botanist Dr Sandra Knapp, from the Natural History Museum in London, life sciences expert Professor Staffan Müller-Wille from Exeter University in the UK, and science writer and biographer of Linnaeus, Dr Lisbet Rausing. Photo: Carl Linnaeus painted by Per Krafft the Elder (Permission of The Linnean Society of London)