Manfred Marx was the man who discovered the diamonds which transformed Botswana's economy. As a young geologist in 1967 his find in the Kalahari desert completely changed the country's fortunes after independence.

(Photo: Uncut diamonds. Credit: Getty Images)

Thousands of people went missing during Lebanon's long and brutal civil war. But in 1982 a group of women started an organisation to try to track down their family members. Nidale Abou Mrad has been speaking to Wadad Halawani whose husband was taken from their home by two gunmen and never came back.

Photo: West Beirut under shellfire in 1982.(Credit:Domnique Faget/AFP/Getty Images)

A British national institution closed in October 1964. The Windmill Theatre had been one of the few places where it was possible to see naked women on stage, due to a loophole in the censorship laws. Lucy Burns speaks to former Windmill Girl Jill Millard Shapiro about her memories of performing at the theatre.

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Curry first became popular in the UK in the 1950s with the arrival of immigrants from South Asia. They introduced spicy food to the British diet. Nina Robinson has been speaking to Nurjuman Khan, an early pioneer of the Indian restaurant business in the English Midlands. His story also forms part of the 'Knights of the Raj' exhibition in Birmingham by Soul City Arts.

Photo: A youthful Nurjuman Khan (Credit: Nurjuman Khan)

A dead sperm whale washed up on a beach in Florence, Oregon in November 1970. It was so big that the authorities decided to blow it up - with disastrous consequences. Years later, a local news report about the story resurfaced in the early days of the internet, and became one of the most famous viral videos ever. Lucy Burns speaks to Paul Linnman, the reporter behind the story.

Picture: a sperm whale washed ashore in Skegness, England in January 2016 (Dan Kitwood/Getty Images)

Remarkable recordings from the BBC archive of two people who felt the cost of war first-hand. Their experiences were tragically common, but for many years, were rarely recorded or voiced in public You'll hear from a German soldier, Stefan Westmann, who tried to come to terms with the act of killing. And the story of Katie Morter, a British civilian from Manchester, and the man she loved, Percy.

The Russian street dog was the first living creature to orbit the Earth. She was sent into space in November 1957. She died after orbiting the Earth four times. Professor Victor Yazdovsky was nine years old when his father brought Laika back from the laboratory to play with him. He has been speaking to Olga Smirnova for Witness.

Photo: Laika the dog. Credit: Keystone/Hulton/Getty Images.

On 7 November 1917, Bolshevik revolutionaries overthrew the provisional government set up in Russia after the fall of the Tsar earlier that year, and created the world's first communist state - a state that would become the Soviet Union. Louise Hidalgo has been listening back to eye-witness accounts of that tumultuous time.

(Photo: Bolshevik leader Vladimir Lenin addressing crowds in the capital Petrograd during the Russian Revolution of 1917. Credit: Hulton Archive/Getty Images)

Days before Kabul fell to anti-Taliban forces in November 2001, Osama bin Laden met Pakistani journalist Hamid Mir in a secret location before going into hiding. It would be 10 years before he was discovered and killed in Pakistan. Hamid Mir tells Rebecca Kesby about their last conversation and how they were both nearly killed in an airstrike.

(PHOTO: Osama bin Laden (left) with Pakistani Journalist Hamid Mir (right) at an undisclosed location. Credit Getty Images)

In 1997 the US Supreme Court ruled against censoring sex on the internet. It overturned a law, signed the previous year which had been designed to protect children from sexual content on the internet. Claire Bowes has been speaking to an American Civil Liberties Union lawyer who fought the case for freedom of speech.

Photo: A computer. Credit: Anilakkus/iStock