The First Foetal Surgery

Top secret negotiations in Norway during 1993 eventually led to an Israeli-Palestinian agreement which became known as the Oslo Accord. Norwegian diplomat Mona Juul was one of the people who helped keep the talks on track. She spoke to Louise Hidalgo for Witness in 2012.(Photo: Yitzhak Rabin, Bill Clinton and Yasser Arafat at the signing ceremony for the Oslo Accord, September 13,1993. Credit: AFP/Getty Images.)

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In 1987, an American endurance swimmer called Lynne Cox swam across the "Ice Curtain" between the USA and the Soviet Union. The Diomede Islands in the Bering Strait are only 2.7 miles apart, but divided by near-freezing water and Cold War rivalry. Lynne Cox spoke to Simon Watts about her swim in 2012. This programme is a rebroadcast. PHOTO: Lynne Cox on the Bering Strait. (Copyright Rich Roberts)

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Using archive BBC recordings of veterans, we tell the story of one of the most famous figures of World War One. The legendary German air ace Baron von Richthofen who was killed in April 1918. Photo: German First World War air ace Manfred von Richthofen, known as the Red Baron, with a comrade in front of his famous red tri-plane. (Photo by Hulton Archive/Getty Images)

23 Huhti 20189min

On April the 22 1970, 20 million Americans came out on to the streets to demonstrate for a healthy, sustainable environment in the first so-called Earth Day. Mass rallies were held to highlight concerns about pollution and the destruction of America's natural heritage. Some see it as the birth of the modern environmental movement. Farhana Haider spoke to Denis Hayes, the organiser of that first Earth Day. Photo credit: Robert Sabo-Pool/Getty Images

20 Huhti 20189min

The lighthouse on Skellig Michael off the south west coast of Ireland was continuously occupied by lighthouse keepers for more than 150 years until its automation 1987. Skellig Michael has now become a tourist attraction since its ancient monastery was used as a location in recent Star Wars films. The last keeper of the light there was Richard Foran who has been speaking to Catherine Harvey about life on the remote island. Photo: The lighthouses on Skellig Michael. Credit: Alamy

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After the September 11th attacks brought down the Twin Towers, reconstruction began at the devastated area in New York in April 2006. Rachael Gillman spoke to TJ Gottesdiener, who was a managing partner at the architecture firm tasked with designing a new skyscraper on the site.(Photo credit: Robert Sabo-Pool/Getty Images)

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In early 1918, Germany launched a huge offensive on the Western Front in a last great gamble to win the war. Following Russia's withdrawal from the war, Germany could move up to a million soldiers from the Eastern Front to the West to launch a decisive attack. Their plan was to break through British and French lines and force an end to the war, before American power could bolster the Allied cause. They came close to succeeding. Using recordings from the BBC Archive, we hear from German and British soldiers who faced each other in the spring of 1918. Photo: German troops advance in the sector near Villers-Bretonneux during Germany's Spring Offensive 1918. (Hulton Archive/Getty Images)

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In 1968 Europe was rocked by student demonstrations calling for a revolution. In West Berlin the protests intensified following the shooting of student leader Rudi Dutschke on April 11th 1968. He would become a symbol for a generation of young Germans. In 2013 Lucy Burns spoke to his widow Gretchen Klotz-Dutschke about the attack. (Image: Gretchen Klotz-Dutschke(L) Rudi Dutschke(R) Credit: Keystone/Getty Images)

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