Thirty years on from the opening of the Channel Tunnel between Britain and France, we look at the moment the two halves of the tunnel were connected in 1990. Graham Fagg was the man who made the breakthrough, and the first person to cross by land between the two countries in 8,000 years. In 2010, he told Lucy Williamson about the festivities of that day. (Photo: The moment of breakthrough Graham Fagg greets Frenchman Philippe Cozette. Credit: AFP/Getty Images ..read more

In February 2014, Ukraine’s ousted president, Viktor Yanukovych fled the country. His estate was abandoned by security guards, so for the first time ordinary people got to see inside Mezhyhirya, the extraordinarily extravagant home of the former president. Denys Tarakhkotelyk was one of those early visitors, and went on to take charge of the estate. He tells Gill Kearsley his remarkable story, and how the house became known as a ‘museum of corruption’. (Photo: People wander around President Viktor Yanukovych's Mezhyhirya estate. Credit: Jeff J Mitchell/Getty Images ..read more

In 1936, Dale Carnegie wrote one of the world’s most popular self help books - How to Win Friends and Influence People. The idea was suggested by a book editor who had attended one of Dale’s public speaking courses in New York. The result was a mix of psychology, philosophy and good old-fashioned common sense. Dale offered advice like: Smile. Give praise. Be a good listener. And remember people’s names. The book went on to become a best seller. Today, more than 30 million copies have been sold worldwide, and it has been translated into 36 languages. Even the title is part of popular culture. D ..read more

In 1961, the American psychologist Stanley Milgram began a series of controversial experiments on ‘obedience to authority’. His study aimed to show how ordinary people could be capable of committing evil acts, if ordered to do so. He wanted to understand the psychology behind genocide, telling the BBC: “How is it possible that ordinary people who were courteous and decent in everyday life, can act callously, inhumanely, without any limitations of conscience?” During the tests, participants were led to believe that they were assisting an unrelated experiment, in which they had to administer ele ..read more

On 13 December 1990, the anti-apartheid politician Oliver Tambo returned to South Africa after 30 years in exile. As the president of the banned African National Congress (ANC), he had lived in Zambia building the liberation movement while other key ANC members including Nelson Mandela and Walter Sisulu were political prisoners. By lobbying around the world and attracting talented South African exiles such as Thabo Mbeki, he built the organisation into a legitimate contender for government. When President FW de Klerk unbanned the ANC, Oliver or OR Tambo was finally able to return home where he ..read more

In August 2002, the remains of an indigenous South African woman called Sarah Baartman were returned to South Africa after almost 200 years away. Sarah died in Paris in 1815 after being forced to perform in European 'freak shows' where people considered to be biological rarities were paraded for entertainment. She had been subjected to racist and degrading treatment and her remains were exhibited at a French museum until 1976. When Nelson Mandela became the president of South Africa in 1994, he requested that Sarah's remains be returned to her homeland. However, by 1998 that had not happened ..read more

When South African schoolchildren marched in protest against having to study Afrikaans in 1976, they were gunned down by the police. The killings sparked a cycle of protests across the country against the racist apartheid regime. In 2010, march organiser Bongi Mkhabela told Alan Johnston about her memories of the Soweto uprising. (Photo: Protestors on the march. Credit: Bongani Mnguni/CityPress/Gallo Images/Getty Images ..read more

Major Charity Adams was the first African-American woman to lead a World War Two battalion. It was known as the Six-Triple-Eight (6888). The 6888 was a majority African-American women’s unit, the women sorted through mountains of post across Europe, using the motto: 'No Mail, Low Morale'. Charity went on to become lieutenant colonel, the highest possible rank for women in her unit. She died in 2002. Her son, Stanley Earley, speaks to Marverine Cole. This was a Soundtruism production for the BBC World Service. (Photo: American Women's Army Corps Captain Mary Kearney and American Commanding Offi ..read more

On 18 April 2014, an avalanche on Mount Everest killed 16 men, who were carrying supplies for commercial expeditions to higher camps. The sherpas were on the Khumbu Icefall, just above Base Camp in Nepal, when the avalanche happened. It resulted in the climbing season being cancelled and sherpas demanding better working conditions on the mountain. Lakpa Rita Sherpa helped dig bodies of his dead colleagues out of the ice, before transporting them home to their families. He speaks to Laura Jones. (Photo: The south-west face of Mount Everest and the Khumbu icefall. Credit: Eye Ubiquitous/Universa ..read more

The 2014 Ebola outbreak devastated West Africa, killing more than 11,000 people over a two year period. One country that suffered was Sierra Leone. The disease started in Guinea, but quickly spread to neighbouring countries. Before May 2014, there had never been an outbreak of Ebola in Sierra Leone. By autumn that year, burial teams were struggling to keep up with the number of corpses that needed burying. Dan Hardoon speaks to Yusuf Kabba, an Ebola survivor from Sierra Leone. (Photo: Headstones in the Waterloo Ebola Graveyard, Sierra Leone. Credit: HUGH KINSELLA CUNNINGHAM/AFP via Getty Image ..read more