Greece’s debt crisis

In 1998, a transponder or silicon chip was surgically implanted into the forearm of a British scientist. It sent identifying signals to a central computer that tracked his movements and allowed him access to his workplace, by opening doors and switching on lights. Professor Kevin Warwick has been speaking to Farhana Haider about becoming a more enhanced version of himself and as a result the world's first Cyborg: a man-machine hybrid.Photo: Professor Kevin Warwick with chip transponder Credit: Science Photo Library

19 Elo 201910min

The Dr Seuss books revolutionised the way American children learnt to read in the 1950s. Books like 'The Cat in the Hat' were designed to help young children enjoy reading simple words and sentences using rhymes, anarchic characters and lively illustrations. Claire Bowes spoke to Christopher Cerf who knew Theodor Geisel, the author of the books. Photo: Author and illustrator Ted Geisel sits at his drafting table with a copy of his book, 'The Cat in the Hat' in 1957. (Gene Lester/Getty Images)

16 Elo 201910min

In the 1980s Ilich Ramírez Sánchez known as 'Carlos the Jackal' was seen as the world's most-wanted terrorist. He had carried out bombings, killings and kidnappings and had been on the run for decades. He was finally arrested in Khartoum in August 1994. Alex Last spoke to former CIA operative, Billy Waugh, who tracked him down.Photograph: Rare photo of Carlos the Jackal, taken in the 1970s (AFP/Getty Images)

15 Elo 20198min

Throughout 2001 the US authorities were being given warnings that a terror attack was imminent. A Congressional Commission, FBI officers and the CIA were all worried. There were even specific warnings about planes being flown into buildings. Louise Hidalgo has been speaking to former Senator Gary Hart who co-chaired the Congressional Commission that tried to convince the government to take action.Photo: Smoke pours from the World Trade Centre after it was hit by two passenger planes on September 11, 2001 in New York City. (Credit: Robert Giroux/Getty Images)

14 Elo 201910min

The contact lens was once a precious and expensive piece of eyewear which had to be looked after and carefully cleaned every night. But that all changed in the 1990s. Ron Hamilton was involved in developing lenses and packaging which could be made so cheaply they could be worn just once and then thrown away. He has been speaking to Ashley Byrne.Photo: Ron Hamilton (l) with his business partner Bill Seden (r) and their wives with their original contact lens machine. Courtesy of Ron Hamilton.

13 Elo 20199min

In October 1947, an invasion of Kashmir by tribal fighters led to the division of the state between India and Pakistan. Andrew Whitehead speaks to victims of the invasion and political leaders in Kashmir to find out more about the roots of a crisis that endures to this day.PHOTO: Indian troops arriving in Kashmir in October 1947 (Getty Images)

12 Elo 20199min

In 1949 a British warship, HMS Amethyst, launched a daring escape after it was held captive for months by Chinese Communists on the Yangtze river. The ship had been badly damaged when it was fired on by Communist forces as it sailed up the river to help evacuate British citizens from Nanking during the final months of China's civil war. Using eyewitness accounts in the BBC Archive, we tell the story of HMS Amethyst.Photo: The HMS Amethyst (F116) arrives in Hong Kong after it's epic escape down the Yangtse. (Photo Hulton-Deutsch Collection/CORBIS/Corbis via Getty Images)

9 Elo 201911min

In August 1969 the British Army was first deployed in Northern Ireland. Their job was to keep the peace on the streets of Londonderry where sectarian violence had broken out. To begin with the soldiers were welcomed by residents, but attitudes soon changed and what became known as 'The Troubles' got underway.Picture: Armed British soldiers on the streets of Northern Ireland, 15th August 1969 (Credit: Press Association)

8 Elo 20199min