In 1984 a group of lesbians and gay men organised a benefit concert to support striking coal-miners. They sent the money they raised to a mining village in Wales. The miners' strike was the biggest industrial dispute in British history. Hear from Mike Jackson, one of the gay men inspired by the miners' struggle. Photo: Campaign activists on the 1985 Lesbian & Gay Pride march. Credit: Colin Clews

There was a frenzy of celebrations on New Year's Eve 1999. But amid the partying, there was also some anxiety over the effects of a potential global computer meltdown, the so-called Millennium Bug - or Y2K. (Photo: The White House Y2K Crisis Centre in Washington in 1999. Credit : AP)

In 1935, Alexei Stakhanov, a coal miner, became a Soviet celebrity. He invented a more efficient coal production method and started a movement to encourage innovation amongst Soviet workers. His daughter, Violetta Stakhanova, tells Dina Newman about her father's achievements and his eventual downfall. Photo: Alexei Stakhanov at work, 1935. Credit: Stakhanov family

In December 1916, the infamous mystic, Grigori Rasputin, was murdered by Russian aristocrats. Rasputin, a Siberian peasant and wandering holy man, had become a powerful figure at the Russian Imperial court. The Czar and his wife believed Rasputin had special powers that could heal their son, who was suffering from haemophilia. Using written accounts and archive recordings of those who had met Rasputin, we tell the story of the 'Mad Monk'. (Photo: Grigori Rasputin, Russian monk and...

In 1846, a group of pioneers were trying to reach California by wagon train when they were trapped by snow over the winter - and some were forced to eat each other to survive. Their gruesome story has become a legend of the American West. PHOTO: The slopes of Mount Whitney in the Sierra Nevada range, near Lone Pine, California, USA. 20/04/2008.

On Christmas Day 2003, an unmanned British space craft called Beagle 2 was due to touch down on Mars and begin searching for evidence of life. The mastermind of the mission, professor Colin Pillinger, had helped to generate huge public interest in Beagle 2. But the lander failed to communicate and was presumed lost. It was discovered on the surface of Mars in January 2015 less than a year after professor Pillinger’s death. Witness delves into the BBC’s archives to hear Colin’s Pillinger’s...

In December 1946, the classic Christmas film "It's a Wonderful Life" had its premiere in Hollywood. Starring Jimmy Stewart, the movie's message of hope and redemption is loved by millions. Simon Watts talks to former child star, Karolyn Grimes, who played six-year-old Zuzu Bailey. PHOTO: Karolyn Grimes with Jimmy Stewart in "It's a Wonderful Life" (Getty Images)

In 1982 the world's best selling album was released. Thriller included hits such as Beat It, Billie Jean and Wanna Be Startin' Somethin' as well as the title track. Witness speaks to Anthony Marinelli who worked on the seminal album. (Photo: Michael Jackson and assorted zombies in the video for Thriller in 1983, publicity handout)

One of the 20th century's most scandalous books was published in 1955. Lolita, by Russian émigré Vladimir Nabokov, tells the story of the relationship between middle-aged Humbert Humbert and teenager Dolores Haze - known as Lolita. (Photo: Visitors look over a poster of Lolita by Stanley Kubrick during the 'Palazzo delle Esposizioni' exhibition in Rome, 2004. Credit: Vincenzo Pinton/AFP/Getty Images)

In December 1945, one of America's most famous miltary commanders, General George S Patton, died from injuries sustained in a car crash, just months after the end of the Second World War. Witness talks to his grandson, George Patton Waters, about his memories of this colourful and often unorthodox man. Photo: General George Patton in Paris in August 1945 to celebrate the first anniversary of the city's liberation. (Credit: AFP/Getty Images)

In December 1995, the first disability rights legislation was passed by India's parliament. An estimated 60 million people, almost six percent of India's population, are affected by physical or mental disabilities. Witness been speaking to Javed Abidi who led the campaign to change the law. Photo: Disability rights campaigners protest in Delhi, December 19th 1995. Credit: Javed Abidi)

In the mid-1970s, English classical actor Anthony Daniels was asked to audition for a role as a droid in a new science fiction film by a little-known Hollywood director. The film turned out to be Star Wars and the director, George Lucas. Star Wars went on to become one of the biggest blockbusters of all time; while Anthony Daniels turned C3PO into one of the most famous robots in cinema history. (Photo: Anthony Daniels with C3PO. Credit: Associated Press)

In 1974, a Hungarian architect, Ernő Rubik invented his best selling puzzle. Over the next forty years, more than 350 million Rubik's Cubes were sold all over the world. Mr Rubik tells Dina Newman how he came up with the idea and how it became a global phenomenon. Photo: Tim Whitby/Getty Images

When Bangladesh fought for independence from Pakistan, thousands of Pakistani troops were sent to fight in what was then called East Pakistan. Shujaat Latif was sent to the town of Jassore where he fought, and then surrendered. He spent two and a half years as a prisoner-of-war. Hear his story. Photo: Indian army soldiers fire on Pakistani positions, December 15th 1971. Credit: AFP/Getty Images.

In December 1960, while the Ethiopian emperor, Haile Selassie, was out of the country, his Imperial Bodyguard took over the capital Addis Ababa and proclaimed his son the new emperor. We speak to Dr Asfa-Wossen Asserate, the grand nephew of Haile Selassie, about the coup. Dr Asfa-Wossen is the author of King of Kings, a new history of Haile Selassie's rule. Photo: Emperor Haile Selassie in the Royal Palace in Addis Ababa, Ethiopia, circa 1960. (Three Lions/Hulton Archive/Getty Images)

On December 11th 1965, seminal alternative rock band the Velvet Underground played their first gig at a high school in New Jersey. Rob Norris was there. Picture credit: Getty Images - c1968 - Lou REED and John CALE and VELVET UNDERGROUND (photo by Charlie Gillett Collection/Redferns)

In December 1965, three members of the Ku Klux Klan were found guilty over the murder of white civil rights activist, Viola Liuzzo, in one of the first successful prosecutions of its kind in the United States. Viola Liuzzo was killed on the final day of the Selma to Montgomery march, when thousands of civil rights activists marched to demand that blacks be allowed to register to vote. Witness talks to one of the lawyers involved in the landmark case. Photo: A Ku Klux Klan meeting in...

After the Taliban fell from power in Afghanistan in the winter of 2001, the hunt for Osama bin Laden began in earnest. One American in particular led the search. He was CIA commander, Gary Berntsen, who had been tracking the al-Qaeda leader for years. In December 2001 he ordered a small group of special forces soldiers and Afghan fighters into the White Mountains close to Pakistan in the hope of cornering bin Laden in the caves of Tora Bora. (Photo: Afghan fighters look out over a...

In 1915, an Anglo-Indian attempt to capture Baghdad from the Ottoman empire ended in disaster. Thousands of British and Indian troops spent five months besieged in the small town of Kut, south of Baghdad, until they were forced to surrender to Ottoman forces. Only half of those taken prisoner survived their captivity. Hear archive recordings of those who took part in Britain's Mesopotamia campaign. (Photo: Troops of the Ottoman Empire on their way to Kut, Mesopotamia, September 1915....

In the 1980s Angola was a front line in the Cold War between communism and the West. In 1987 tens of thousands of Cuban soldiers were sent to the Southern African country to support the Marxist government in its fight against UNITA rebels who were backed by South Africa and the USA. Alberto Lahens was a young special forces officer who was flown from Cuba to Africa to take part in the fighting. (Photo: Cuban fighters in Angola. Credit: AFP/Getty Images)

On 3 December 1967, two brothers carried out the world's first heart transplant operation. Christiaan and Marius Barnard were both working as surgeons in Cape Town, South Africa. Christiaan Barnard led the team which carried out the transplant. In 2009 Marius Barnard spoke to Witness about the operation, and about his relationship with his older brother. (Photo: Leader of the heart transplant team Christiaan Barnard. Credit: Press Association)

On 7 December 1941, Japan launched a surprise attack on the US naval base at Pearl Harbour, Hawaii. Thousands of American servicemen died in a raid which brought their country into World War Two. Former Navy mechanic, Adolph Kuhn, tells Witness how he survived. (Photo: The USS Arizona sinking at Pearl Harbor. Credit: Getty Images)

How a devastating air raid on the Italian port of Bari during World War Two led to the deadly release of mustard gas. Winston Churchill ordered the incident to be kept secret for years. We hear from Peter Bickmore BEM, who was injured during the raid. (Photo: Seventeen Allied ships go up in flames in Bari, Italy, after a raid by German bombers on 2 December 1943. Credit: Keystone/Getty Images)

In 1984 General Muhammadu Buhari's military regime launched an unusual campaign to clean up Nigeria. Under the policy, Nigerians were forced to queue, be punctual and obey traffic laws. The punishments for infractions could be brutal. Veteran Nigerian journalist Sola Odunfa recalls the reaction in Lagos to the War Against Indiscipline. Photo: The Oshodi district of Lagos, 2008 (AFP/Getty Images)