West African food and computer viruses

In February 1979, Ayatollah Khomeini returned from exile to Iran in the defining moment of a revolution that would change his country and the whole Middle East. In a special edition of the programme, Rebecca Kesby hears eye-witness accounts from the protestors who brought down the Shah, one of the Ayatollah's aides and an American embassy official taken hostage by Khomeini supporters. She also talks to the BBC Persian Service's special correspondent, Kasra Naji.PHOTO: Ayatollah Khomeini returning to Iran (Gabriel Duval, AFP/Getty Images.)

2 Helmi 201949min

In January 1959 Pope John XXIII announced a council of all the world's Catholic bishops and cardinals in Rome. It led to sweeping reforms. Plus Carmen Callil recalls setting up Virago, the most successful feminist publishing house to date; India gives birth to the call centres and remembering the Carry-on films.(Photo; Pope John XXIII at the Vatican. Credit: Getty Images)

26 Tammi 201941min

How South Asian women led thousands of UK workers in an industrial dispute in the late 1970s, plus Dr Crippen's alleged gruesome crime, Judy Garland's emotional last performances, the 'miracle waters' in Mexico and excitement over a whale in London's River Thames.(PHOTO: Jayaben Desai, leader of the Grunwick strike committee holding placard 1977 Credit: Getty images)

19 Tammi 201950min

Stalin's last terror campaign against the best Soviet doctors, Castro's triumphant entry into Havana, the extraordinary story of how a destitute single mother produced a best selling memoir about her life in a Brazilian favela. Also, the controversy over 'Fat Is a Feminist Issue', and the world's only seed vault. Photo: Yakov Rapoport, one of the few survivors of Stalin's 'Doctors' Plot'. Credit: family archive.

14 Tammi 201949min

The discovery that proved the Vikings got to North America, a former Marxist rebel describes how his group overran an army base in El Salvador's bitter civil war in the 1980s, the enormous palace built by the Romanian communist dictator, Nicole Ceausescu, how the prolific romantic novelist Barbara Cartland was made a Dame by the Queen and the summer of 1987 when thousands of tins of marijuana washed up on a Brazilian beach.Photo: Replicas of Norse houses from 1000 years ago at L'Anse aux Meadows. (LightRocket/Getty Images)

5 Tammi 201950min

The most striking and well documented UFO "sightings" there have ever been plus the 1979 Soviet invasion of Afghanistan, the theft of the Stone of Destiny from Westminster Abbey in 1950 also one of the first electronic instruments and how Britain has long honoured its' military animals.(Photo: Computer illustration of UFOs - Unidentified Flying Objects)

29 Joulu 201851min

Passenger Kwame James recalls how he helped overcome the British-born Richard Reid on American Airlines flight 63. Reid had hidden explosives in his shoe which failed to go off. Plus, the US apology for the internment of thousands of Japanese Americans in WW2, the first computer password, the woman who wrote Mary Poppins and a British theatrical group tours the Sahara.Photo: One of the shoes worn by Richard Reid on the American Airlines flight to Miami (ABC/Getty Images)

22 Joulu 201850min

At Christmas 1968, the biggest audience in TV history watched NASA's Apollo 8 mission beam back the first pictures from an orbit around the Moon. The broadcast captured the world's imagination and put America ahead of the Soviet Union in the Cold War battle to make the first lunar landing. Plus, the rape of Nanking, WWII spy drama in the Netherlands and the woman who revolutionised the treatment of the dying.Picture: The Earth as seen from the Moon, photographed by the Apollo 8 crew (NASA)

15 Joulu 201850min