Witness

Hindu extremists demolished a 16th century mosque in the Indian city of Ayodhya in December 1992 prompting months of communal violence across India. Photojournalist Praveen Jain witnessed rehearsals for the demolition the day before the activists stormed the mosque. He has been talking to Iknoor Kaur about what he saw. On November 9th this year the Indian Supreme Court ruled that a Hindu temple can be built on the disputed site.Photo: Hindu extremists rehearsing the demolition of the Babri Masjid. Copyright:Praveen Jain.

In 2004, a German aid agency ship, Cap Anamur, was sailing to the Suez Canal, when it came across 37 Africans on a sinking rubber boat. The captain, Stefan Schmidt, rescued the men and headed for a port in Sicily to drop them off. But for almost 2 weeks, Italy blocked the ship from entering port and when the ship was finally granted permission to dock, Captain Schmidt and two others were arrested and prosecuted by Italian authorities for aiding and abetting illegal immigration. The case made headlines around the world and was a foretaste of an increasingly hostile European policy towards refugees and migrants trying to reach Europe by sea. Alex Last has been speaking to Captain Schmidt about his memories of the incident.(Photo: the German aid agency ship Cap Anamur in 2004. Credit: Antonello NUSCA/Gamma-Rapho via Getty Images)

Wilfred Owen died just a few days before the end of World War One but his poetry ensured he would be remembered. Little is known about the man behind the poems but his younger brother Harold spoke to the BBC about him in the 1960s. Vincent Dowd pieces together a picture of the young soldier-poet using the BBC's archive, Owen's letters home, and by speaking to Jean Findlay, biographer of CK Scott Moncrieff, the translator of Proust, who fell in love with Wilfred Owen.(Photo: Wilfred Owen in 1916. Credit: Getty Images)

Former Berlin resident David Bowie was among the performers at a pop concert in West Berlin in 1987 credited with helping to create the atmosphere that led, two years later, to the fall of the Berlin Wall. During the three-day concert, there were riots in East Berlin as East Berliners were prevented by police from gathering near the Berlin Wall to listen. And German journalist Christoph Lanz tells Louise Hidalgo it was the first time shouts were heard of 'the wall must go'.Picture: David Bowie during the concert beside the Reichstag in West Berlin in June 1987 (Credit:Scherhaufer /Ullstein Bild via Getty Images)

WARNING: This programme contains distressing descriptions of violent torture from the beginning.In 1980 police in a small city in the Indian state of Bihar were revealed to be torturing petty criminals. Iknoor Kaur has been talking to several people with first-hand experience of the disturbing events that came to be known as the Bhagalpur blindings. Ram Kumar Mishra was the lawyer who represented the victims, Amitabh Parashar made a documentary film about what happened, and Umesh Yadav was one of the victims who lost his sight at the hands of the police.(Photo: Victim of the Bhagalpur blindings, Umesh Yadav. Copyright: Amitabh Parashar)

How sex, jazz and 'fake news' were used to undermine the Nazis in World War Two. In 1941, the UK created a top secret propaganda department, the Political Warfare Executive to wage psychological warfare on the German war machine. It was responsible for spreading rumours, generating fake news, leaflet drops and creating fake clandestine German radio stations to spread misinformation and erode enemy morale. We hear archive recordings of those involved and speak to professor Jo Fox of the Institute of Historical Research about the secret history of British "black propaganda".(Photo: The actress and singer Agnes Bernelle, who was recruited to be a presenter on a fake German radio station during the war)

In 1975 the Canadian oncologist Dr Vera Peters released ground-breaking data to prove that breast-conserving surgery could at times be as effective as having a radical mastectomy. Her findings were received with lukewarm support and even open opposition from many of her colleagues in the male-dominated medical profession. Mike Lanchin hears from Dr Peters' daughter, Dr Jennifer Ingram, about her mother's tenacious attempt to improve the well-being of breast-cancer sufferers.Photo:Dr Vera Peters (courtesy of the family)

On November 4th 1979 revolutionary students overran the US Embassy in Tehran and took everyone inside hostage. In February 1980 the students invited a humanitarian delegation from the US to visit them in Iran. The group were shown around Tehran to highlight the country's poverty. They were also allowed to meet some of the American hostages. Rabbi Hirshel Jaffe was a member of the delegation and Masoumeh Ebtekar was the spokesperson for the students. Rachael Gillman reports on a crucial moment in the relationship between the US and Iran, as part of the BBC Crossing Divides season, which brings people together across divides.

In the 1960s conservationists began a campaign to prevent the Queensland government from allowing mining and oil drilling on Australia's Great Barrier Reef. Eddie Hegerl told Claire Bowes that he and his wife were prepared to sacrifice everything to protect the world's biggest coral reef from destruction.Photo: Science Photo Library

A group of feminists working under the name “Jane” carried out underground abortions in 1960s Chicago – when abortions were still illegal in most of the US.Initially they gave abortion counselling and put women who wanted to terminate their pregnancies in touch with doctors who would perform the procedure. But when they discovered that one doctor they had been working with was not medically qualified, the women started to perform the abortions themselves.Martha Scott was a member of the group – she received an abortion through the service, learned to perform abortions, and was one of the Janes arrested when they were busted by the police. She tells Lucy Burns about her experiences.Photo courtesy of Martha Scott

The Harkis were Algerian Muslims who volunteered to fight with France in Algeria's war of independence. When the conflict came to an end in 1962 and France was forced to abandon its former colony, thousands of its Harki allies were left to face persecution and brutal repression. Serge Carel was an Algerian Harki who joined the French army when he was just 18 years old. When the independence war ended, he was imprisoned and tortured by the country's new rulers. He's been telling Mike Lanchin about his ordeal.Photo: Harki recruits in the French army in Algeria (courtesy of Serge Carel)

At the end of the Second World War the grand Parisian hotel, the Lutetia, was allocated to receive thousands of prisoners and Nazi concentration camp survivors returning home from across a ravaged Europe. Louise Hidalgo talks to two people for whom the Hotel Lutetia played a crucial role in 1945: Maurice Cling, a survivor of Auschwitz, and Christiane Umido who, as a young girl, was reunited there with her father.Picture: concentration camp survivors camps in the Lutetia restaurant in 1945 (credit: STF / AFP Photo )

The British Prime Minister started expressing doubts about the European Union during a speech in the Belgian city of Bruges in 1988. The now famous "Bruges speech" is seen by many as the spark which ignited the anti-European movement within Britain's Conservative party. Susan Hulme has been speaking to Sir Stephen Wall who wrote an early version of the speech and to David McWilliams who was a student in the audience at the College of Europe when Mrs Thatcher spoke.(Photo: Margaret Thatcher giving her "Bruges speech" at the College of Europe in 1988. Credit: Press Association/Fiona Hanson)

The border between communist East Germany and the West opened on November 9th 1989. It marked the beginning of the collapse of communism in Eastern Europe. Michaela Graichen spoke to two East Germans who believe they were the first people to cross from East to West on the night of November 9th.(Photo: East Germans climbing onto the top of the Berlin Wall at the Brandenburg Gate after the opening of the East German border was announced in Berlin. November 9, 1989. Credit: REUTERS/Staff/Files)

Mass demonstrations in the East German city of Leipzig in October 1989 shook the communist authorities to their core. The protests are seen as paving the way for the fall of the Berlin Wall just a month later. Lucy Burs spoke to Martin Jankowski who was one of the protesters.(Photo:A young East German protesting against the communist government flashes the peace sign. Credit: Peter Turnley/Corbis/VCG via Getty Images)

Thousands of East Germans fled to the West in the summer and autumn of 1989, before the fall of the Berlin Wall. Many of them sought refuge in the West German embassy in Prague, where they camped in the grounds and slept in stairwells and corridors, fed by the Red Cross. On September 30th, West German foreign minister Hans-Dietrich Genscher announced that they were free to travel to West Germany.Hubert and Susanne Kuhn lived in the embassy with their three children for three months. They spoke to Lucy Burns about their experiences.Photo: a crowd of East-German refugees in Prague wait to be transferred to West Germany after East Germany lifted restrictions on emigration (PASCAL GEORGE/AFP via Getty Images)

In 1989 the body of Imre Nagy, Prime Minister during the 1956 Hungarian uprising, was reburied in a public ceremony in Budapest. He had been executed on the orders of Moscow. It marked the beginning of the end of communism in Hungary. Nick Thorpe spoke to Ivan Baba who was master of ceremonies at the 1989 funeral.Photo: Imre Nagy's coffin and mourners in June 1989.(Credit: Jean Francois Luhan/AFP/Getty Images)

When the banned Polish trade union organisation, Solidarity, was legalised in April 1989 it was one of the first signs that communism was about to collapse in Eastern Europe. Within months Solidarity was leading a coalition government in Poland and soon afterwards the Berlin Wall fell. In 2015 Tom Esslemont spoke to the former Solidarity spokesman Janusz Onyszkiewicz about the events of that historic year.This programme is a rebroadcast.Image: Lech Walesa, pictured in March 1989 (Credit: Marc Deville/Gamma-Rapho via Getty Images)

Kenyan Wangari Maathai became the first African woman to win the Nobel Peace Prize in 2004. She was an environmentalist and human rights activist who founded the Green Belt Movement in the 1970s. She focused on the planting of trees, conservation, and women's rights but repeatedly clashed with the government while trying to protect Kenya's forest and parks. She was arrested and beaten on several occasions. Witness speaks to her daughter, Wanjira Mathai.(Photo: Kenya's Wangari Maathai (L) challenging hired security people working for developers in the Karura Forest, in Nairobi, Kenya. Credit: Simon Maina/AFP/Getty Images)

Things started to go wrong at the Windscale nuclear plant in October 1957. A reactor was overheating and workers were rushed in to help. In 2011 Chris Vallance spoke to Vic Goodwin and John Harris, two of the men who helped bring things under control during Britain's worst nuclear accident.Photo: the Windscale nuclear plant. Credit: Getty Images.