Witness History

A young American scientist began the work that would show how our climate is changing in 1958. His name was Charles Keeling and he started meticulously recording levels of CO2 in the atmosphere. He would carry on taking measurements for decades. His wife Louise and son Ralph spoke to Louise Hidalgo about him and his work. (Photo: Thick black smoke blowing out of an industrial chimney. Credit: John Giles/PA)

In January 1978 a London newspaper revealed how several British lesbians had conceived babies using donor sperm with the help of a respected gynaecologist. The doctor hadn’t broken any laws in providing the fertility treatment but the stigma surrounding homosexuality at the time meant the revelations started a media frenzy and a heated national debate. There were discussions in the press, in the streets and in Parliament. One MP called for a ban on the practice and called it ‘evil’, ‘selfish’ and ‘horrific’. Dr Gill Hanscombe had used artificial insemination to start a family with her two lesbian partners. When the press found out about them she was terrified that they were about to lose their jobs, and potentially their child. Produced and presented by Viv Jones.(PHOTO: Gill Hanscombe (left) with her partners Dee and Pru, and their son. Courtesy of Gill Hanscombe.)

The anti-nuclear weapons protest was the biggest women-led movement in the UK since the Suffragettes. It began in 1981 when Ann Pettitt from Wales organised a women-led peace march from the Welsh capital Cardiff to the airbase at Greenham Common, where American nuclear-tipped cruise missiles were being kept. A small group of women decided to set up camp outside the fences of Greenham Common to continue their protest. Women from all over the UK joined the demonstrations, some travelled from Europe and beyond to lend their support. At its peak, thousands of women camped around the base, and some form of protest camp remained for 19 years until all the nuclear weapons were moved and the airbase was decommissioned. It's now an open nature reserve. Ann Pettitt has been telling Rebecca Kesby why the women were prepared to leave jobs and families to sleep out in the cold to try to stop a nuclear war. Photo: Women from the Greenham Common peace camp blocking Yellow Gate into RAF Greenham Common , 1st April 1983 . (Photo by Staff/Reading Post/MirrorpixGetty Images)

During World War Two, close to 20,000 Polish people found refuge in Africa. They arrived after surviving imprisonment in Soviet labour camps and a harrowing journey across the Soviet Union to freedom. Casimir Szczepanik arrived as a child in a refugee camp in Zimbabwe (then Southern Rhodesia). He talks to Rob Walker about his life there and the impact the war still has on him. Photo:Casimir Szczepanik and his mother in the refugee camp. Credit:Casimir Szczepanik

When the socialist leader of Mozambique and some of his senior advisers were killed in a plane crash on the border with South Africa, many were suspicious. It was 19 October 1986 and the two countries were divided over Apartheid. The plane made a sudden direct turn straight into a range of mountains, and one of the air crash investigators at the scene, Dr Alan Diehl, told Rebecca Kesby there are reasons to suspect the plane was deliberately diverted off course.(Photo: The socialist leader of Mozambique Samora Machel delivers a speech. Credit: Getty Images.)

Sarah Jones is the first person who had undergone a gender change to be ordained in the Church of England. She has been talking to Phil Marzouk about her journey towards the priesthood. She says that in her early life she knew that although she had been born a boy, she wasn’t one. She also knew that she wanted to work in the church. She transitioned as a woman in 1991, and was first ordained as a deacon in the Church of England in 2004.Photo: Sarah Jones.

In America, there are few issues as controversial as abortion. It’s a major fault line that runs through society, dividing families and even influencing elections. In the 1980s and 1990s, some groups within America’s anti-abortion movement became militant. There were hundreds of bombing and arson attacks on clinics. Some groups began to argue that to save the lives of what they called ‘pre-born babies’, it was morally justifiable to murder abortion providers. Journalist Amanda Robb tells Viv Jones how her uncle, Dr Barnett Slepian, was killed in 1998. An anti-abortion extremist shot him through his kitchen window in front of his wife and four young sons. His shooting followed years of harassment and intimidation.(Photo: Portrait of Doctor Barnett Slepian, his wife and his four sons. Getty/Liaison)

Under legislation known as the Hudood Ordinances introduced in 1979, a nearly blind teenage girl who'd been raped by two men and then became pregnant, was jailed herself for having sex outside marriage. In 1983 Safia Bibi was sentenced to three years imprisonment, 15 lashes and a fine. There was public outrage and anger from Pakistani women against the verdict and draconian punishment. Farhana Haider has been speaking to leading Pakistani lawyer and human rights advocate, Hina Jilani, who helped overturn the verdict.

Eighteen-month-old Jessica McClure fell down a well-shaft while playing with other children in Texas in October 1987. It took almost three days to free her, and as the rescue effort got underway the American media became transfixed by her story. Susan Hulme has been talking Joe Faulkner, a neighbour who watched the drama unfold.Photo: a policeman carries Jessica away from the well shaft. Credit: Barbara Laing/Liaison Agency/Getty Images.

In 1960s Britain extreme right-wing groups were on the rise. A schoolteacher called Colin Jordan led a Nazi rally in Trafalgar Square in central London. He openly praised Hitler and called for Britain to be freed from what he called 'Jewish control'. He was also a white supremacist who called for the repatriation of black people. Claire Bowes has been speaking to Gerry Gable, a Jewish anti-fascist activist who helped infiltrate Jordan's National Socialist Movement as well as helping secure the arrest of his former wife, Francoise Dior, for inciting arson attacks on two London synagogues.(Photo: British neo-Nazi politician Colin Jordan and French socialite Francoise Dior, UK, 7 October 1963; she is wearing a swastika shaped pendant and behind them, a portrait of Adolf Hitler. Credit: Felkin/Daily Express/Hulton Archive/Getty Images)

Saudi author Raja Alem was a voracious reader from an early age and thanks to her liberal-minded father, grew up immersed in books. She was in her early teens when she began to write novellas and then articles in the cultural supplements of newspapers in her native Saudi Arabia. In 2011, she became the first woman to win the prestigious international Booker prize for Arabic fiction for her novel The Dove's Necklace - a murder mystery set in modern-day Mecca. Mike Lanchin has been speaking to Raja about her writing and the influences that have made her unique among Saudi authors.Photo by Leonardo Cendamo/Getty Images

Bermuda-born Clyde Best came to England as a teenager in 1968 and went on to play for West Ham United alongside the likes of Bobby Moore and Geoff Hurst. Best made a name for himself as a talented goal-scorer in more than 200 appearances for the Hammers, but he faced constant racist abuse from fans, and on occasion, from opposition players. Clyde Best told Mike Lanchin about how he stood up to the racists in English soccer. (Photo: Clyde Best on the ball, 4 March 1972. Credit: Mirror Group Newspapers/Mirrorpix/Getty Images)

In 1998, Christopher Alder, a black former soldier, choked to death in handcuffs on the floor of a British police station. CCTV footage showed the 37-year-old father-of-two gasping for air as officers chatted and joked around him. It took 11 minutes for him to stop breathing. An inquest found Christopher Alder was unlawfully killed but no-one has ever been held accountable for his death. Farhana Haider spoke to Janet Alder about her long fight to get justice for her brother. Photo:Christopher Alder (Alder family handout)

In the early 20th century, many Somali seafarers made their way to Britain on merchant ships, establishing communities in cities such as Cardiff. One of them, Ibrahim Ismaa'il, made his way to the UK from the port of Aden. He then struck up an unlikely friendship with an eminent anthropologist who lived in an alternative community in the Cotswolds. The anthropologist later recorded Ismaa'il's remarkable life-story. Chloe Hadjimatheou reports.PHOTO: A British liner in the port of Aden in the 1920s (Getty Images).

During World War Two, tens of thousands of African-American US servicemen passed through the UK as part of the war effort. The black GIs stationed in Britain were forced by the American military to abide by the racial segregation laws that applied in the deep south of the US. But that didn't stop relationships developing between British women and the black soldiers, some of whom went on to have children. Babs Gibson-Ward was one those children. She spoke to Farhana Haider about the stigma of growing up as mixed raced child in post-war Britain. (Photo: Hoinicote House children, c.1948. Boys and girls whose parents of mixed ancestry met during WWII. Credit: Lesley York)

Norwell Roberts joined the Metropolitan police in 1967. He was put forward as a symbol of progressive policing amid ongoing tensions between the police and ethnic minorities in the capital. But behind the scenes, Norwell endured years of racist abuse from colleagues within the force. Norwell Roberts spoke to Alex Last about growing up in Britain and his determination to be a pioneer in the police.(Photo: London's first black policeman PC Norwell Roberts beginning his training with colleagues at Hendon Police College, London, 5 April 1967. Credit: Hulton Archive/Getty Images)

In November 1987, the Romanian cargo ship, the Fundulea, was attacked by an Iranian gunboat in the Persian Gulf. It was just one of hundreds of merchant ships hit by missiles or mines in the Gulf during the Iran-Iraq war, as both sides sought to damage each other's oil exports and trade. The conflict at sea became known as the Tanker War. Major naval powers deployed to the Gulf to protect their shipping, but many ships, like the Fundulea, ran the gauntlet unescorted. Alex Last has been speaking to Florentin Dacian Botta, who was on board the Fundulea when it was attacked. Photo: Tug boats spray water to extinguish fires onboard the stricken Romanian freighter, the Fundulea, after it was attacked by an Iranian gunboat, 23rd November 1987 ( NORBERT SCHILLER/AFP via Getty Images)

In the early 1980s in West Germany, a radical new political party was on the rise. Die Grünen - the Greens - championed protecting the environment, scrapping nuclear power plants and nuclear missiles, and stopping pollution. A movement as well as a party, the Greens brought together disparate groups of environmentalists, conservative farmers and youthful anti-nuclear activists. Petra Kelly, the party’s most prominent spokesperson, was a charismatic speaker who became an international name. Her life was cut short when she was killed by her partner in 1992. Sara Parkin, friend and biographer of Petra Kelly, shares her memories of the Greens’ early successes and reflects on Kelly’s legacy today. Image: Petra Kelly. Credit: Mehner/ullstein bild via Getty Images

In 1996 the UK government said there was a link between BSE in cattle and Variant CJD in humans. It's believed that more than 100 people contracted the debilitating and ultimately fatal disease after eating infected beef during an outbreak in the 1980s and 1990s. Initially scientists had no idea what was causing their strange symptoms, until a link was found that traced CJD back to BSE or 'mad cow disease', as it became known, in cattle. Millions of cows were destroyed and feeding practices were changed to contain the outbreak. Roger Tomkins and Sarah Shadbolt both lost family members to Variant CJD and share their stories with Rebecca Kesby.Photo: Cows. BBC.

In 1971 photographer Claudia Andujar began documenting the lives of a remote indigenous tribe in the Brazilian Amazon jungle. Claudia went on to take thousands of unique images of Yanomami men, women and children. Her photographs helped the campaign for recognition of the Yanomami's rights over their own land. Mike Lanchin has been hearing from Claudia, now in her 90s, about how she was received by the indigenous group when she first arrived in the Amazon, and how she won them over with her smile, and her camera.Photo:Antônio Korihana thëri, a young man under the effect of the hallucinogenic powder yãkoana, Catrimani, 1972-1976. © Claudia Andujar

The Taliban first started to gather support in the south of Afghanistan in the early 1990s. By September 27th 1996 they had taken control of the country's capital Kabul. Journalist and writer Ahmed Rashid watched their rise, from the religious schools in refugee camps on the border between Afghanistan and Pakistan, to their ultimate victory over the American-led coalition forces. He's been speaking to Zak Brophy.Photo:Taliban fighters on the back of a vehicle in Kabul, Afghanistan, August 2021. Credit: EPA/STRINGER

Gunmen from the Somali Islamist group Al-Shabab attacked a shopping centre in Nairobi taking hundreds hostage. The group claimed it was in retaliation for Kenyan military action against them in southern Somalia. The siege lasted four days in September 2013 and more than 60 people were killed, but hundreds more were injured and traumatised. Daniel Ouma was a paramedic on duty at the scene and explains to Rebecca Kesby how his team tried to help people affected. PHOTO: A police officer during a rescue operation at the site of the terrorist attack, Westgate Mall, on September 21, 2013 in Nairobi, Kenya. Gunmen from the extremist group Al-Shabab entered the mall and opened fire at random on shoppers; 68 deaths have been confirmed. (Photo by Jeff Angote/Nation Media/Gallo Images/Getty Images)

As the 25th James Bond film hits cinema screens we look at the lasting appeal of the franchise. The original author, Ian Fleming, died in the 1960s but other writers took on the challenge of keeping Britain's most famous secret agent alive. Photo:Daniel Craig as James Bond in No Time To Die. Credit: Nicola Dove/PA Wire.

Alexander Litvinenko was a former colonel in the Russian secret service and a critic of Vladimir Putin's government. He fled to London seeking political asylum in 2000. In November 2006 he was poisoned with the highly radioactive substance Polonium-210. Rebecca Kesby spoke to his wife Marina, about his life and excruciating death.This programme is a rebroadcast(PHOTO: Alexander Litvinenko in a London hospital a couple of days before his death in November 2006. Credit Getty Images.)Show less

Thousands of people flocked to the village of Tlacote in central Mexico in 1991. They hoped to be cured by 'magical' water after rumours spread about its healing powers.Maria Elena Navas spoke to Edmundo Gonzalez Llaca who was an official in the local environment ministry in 1991 and who was sent to Tlacote to check out what all the fuss was about.This programme is a rebroadcast.Photo: Hands under a stream of water (Getty Images)

In the late 1960s, the widow of President Kennedy had a secret romance with Aristotle Onassis, who was then the richest man in the world. Simon Watts spoke to Nico Mastorakis, a Greek journalist who visited Onassis’s yacht in disguise to confirm the relationship and secure a sensational scoop. Jackie Kennedy and Aristotle Onassis would go on to marry in October 1968 in a spectacular ceremony on the private island of Skorpios.PHOTO:Jackie Kennedy with Aristotle Onassis in 1968. Credit: David Cairns/Getty Images.

In 1969 a satirical book, The Peter Principle, suggested that promotion led to incompetence. Written by a Canadian Professor of Education, Dr Laurence J. Peter and playwright Raymond Hull, the book was a parody of management theory but it's core message struck a chord with many. It became an instant classic, selling millions of copies around the world. We present a rare archive recording of Dr Peter, explaining his theory that “In a hierarchy every employee tends to rise to his level of incompetence". Photo: Dr Laurence J. Peter on the BBC in 1974 (BBC)

In 1971 a group of squatters, artists and activists took over a disused military barracks on the edge of Copenhagen. They established a self-governing hippy commune called Freetown Christiania, after the surrounding district of Christianshavn. Residents began to build houses along their own experimental designs and soon Christiania had its own theatre, bakery and kindergarten. The semi-autonomous enclave is still there today and is one of the oldest and largest communes in the world. Viv Jones speaks to Danish filmmaker Jon Bang Carlsen, one of Christiania’s first settlers. Photo: Christiania (Getty Images)

In 2010 the Haitian capital and surrounding areas were hit by a catastrophic earthquake. Much of Port Au Prince was flattened and more than a hundred thousand people were killed. Amid the destruction and death people's first instinct was to pull together and help one another. Zak Brophy has been speaking to Kinsley Jean who was just a teenager when his family home collapsed around him.Photo: Men gather to try to reach those still buried in the rubble beneath the Haitian Department of Justice building in January 2010.(Photo by Carolyn Cole/Los Angeles Times via Getty Images)

King Louis XVI of France and his queen, Marie Antoinette, were killed during the French Revolution. Their son and heir was said to have died in prison in 1795 but did he in fact escape? The 10-year-old spent his last two years of life in solitary confinement with no human contact. During his final few months he neither talked nor walked, rumours spread that this was an imposter and that the real dauphin had been smuggled out in a laundry basket and replaced with another boy. Years later, dozens of men from all over the world were claiming they were Louis-Charles, the rightful heir to the French throne. It could never be proven one way or the other, but in 2000 a team of scientists took DNA samples from the heart of the boy, which had been recovered and kept in a royal crypt. Claire Bowes has been speaking to professor Jean Jacques Cassiman and historian Deborah Cadbury about the mystery.(Photo: Illustration of Louis XVII - formally Louis-Charles, Dauphin of France in prison.Credit: Hulton Archive/Getty Images)

In September 1971 prisoners in a high security jail in the USA turned on their guards taking 42 people hostage. After 4 days of negotiations, armed police retook the jail. By the time the siege ended 39 people were dead. Rebecca Kesby spoke to Carlos Roache, a former prisoner who took part in the uprising.PHOTO: Attica prisoners making the black power salute (Getty Images)

In the Aftermath of the Al Qaeda attacks against America on September 11th 2001, many Muslims living in the US had their allegiance to America questioned. In the days after 9/11 all over America hate crimes against Muslims and anyone perceived to be Muslims soared. In 2001, according to crime statistics by the FBI, hate crimes against Muslims and Arabs in the US increased by 1,700 percent. Stories about Muslim women in hijabs and Muslim men with beards being attacked became commonplace. Farhana Haider has been speaking to Kevin James, a Muslim first responder who was at Ground Zero in New York immediately after the attacks.Photo: Nadia Nawaz holds a sign remembering the victims of the attack. Credit: ROBYN BECK/AFP via Getty Images

In October 2001, just a month after the 9/11 attacks, the first airstrikes against Afghanistan began in what the US and its allies called Operation Enduring Freedom. The country was being targeted because it had provided a haven for al-Qaeda. In 2011 Louise Hidalgo spoke to two Afghans who were in Kabul the night the bombing started.(Photo: The aftermath of a US airstrike on Kandahar. Credit: Getty Images)

The al-Qaeda attacks against America took place on the morning of September the 11th 2001. The news was broken to the US President, George W Bush by his Chief of Staff Andrew Card, as he was on a visit to an elementary school. Simon Watts reports. This programme was first broadcast in 2020.(Photo: President George W. Bush shortly after learning of the 9/11 attacks. Credit: AFP/Getty Images)

On the 9th of September 2001 the Afghan fighter Ahmed Shah Massoud who led the opposition to Taliban rule, was killed by a suicide bomber. Just two days later, Al Qaeda carried out their attacks in the USA. In 2011 Louise Hidalgo spoke one of Ahmed Shah Massoud's friends who was with him the day he died.PHOTO: Ahmed Shah Massoud (Getty Images)

Throughout 2001 the US authorities were being given warnings that a terror attack was imminent. A Congressional Commission, FBI officers and the CIA were all worried. There were even specific warnings about planes being flown into buildings. Louise Hidalgo spoke to former Senator Gary Hart who co-chaired the Congressional Commission that tried to convince the government to take action.This programme is a rebroadcast.Photo: Smoke pours from the World Trade Centre after it was hit by two passenger planes on September 11, 2001 in New York City. (Credit: Robert Giroux/Getty Images)

When World War Two ended and the Korean peninsula was divided, Soviet soldiers occupied the North, and US soldiers occupied the South. So how did one man, Kim Il-sung, take control of communist North Korea and create the long-lasting dynasty that still runs the country today? Kevin Kim has been hearing from Professor Kim Hyung-suk about his meeting with Kim Il-sung, and about the mystery behind his rise to power.Photo: North Korean illustration of Kim Il-sung surrounded by happy citizens.

Palermo businessman Libero Grassi published an open letter in Sicily’s main newspaper denouncing the Mafia for constantly demanding extortion payments. Grassi was hailed as a hero, but his public refusal to pay was intolerable to the Mafia and a few months later, in the summer of 1991, he was executed in person by one of Cosa Nostra’s top bosses. Libero Grassi’s defiance is credited with inspiring a new grass-roots movement among businesses in Sicily that stands up to the Mafia. Simon Watts spoke to his daughter, Alice Grassi.This programme is a rebroadcast

When South Vietnam fell in 1975, most could not escape. In the last days, the US airlifted its remaining personnel and some high ranking Vietnamese officials - but millions were left behind to await their fate. This is the account of one South Vietnamese veteran who remained in Saigon as North Vietnamese forces took the city. Dr Tran Xuan Dung served as a doctor in the South Vietnamese Marines. He would spend three years imprisoned in a "re-education" camp before fleeing with his family in 1978.Photo: A South Vietnamese soldier helps his wounded friend during fighting with communist forces in Saigon, 28th April 1975 (Bettmann/Getty Images)

This electric car revolution is finally on the horizon: many car manufacturers have promised to make only electric vehicles in the near future, in response to the climate emergency. But the first mass-produced modern electric car, the General Motors EV1, was launched back in 1996. Within a few short years it was scrapped: almost every vehicle was recalled and crushed, and the car of the future disappeared in history’s rear-view mirror. Viv Jones hears the story from one of the car’s creators, research engineer Wally Rippel.Photo: The GM EV1 (Kim Kulish/Sygma via Getty Images)

Muhammadu Buhari's military government launched an unusual campaign to clean up Nigeria in August 1984. Under the policy, Nigerians were forced to queue in an orderly manner, to be punctual and to obey traffic laws. The punishments for infractions could be brutal. Veteran Nigerian journalist Sola Odunfa spoke to Alex Last about the reaction in Lagos to the War Against Indiscipline.This programme is a rebroadcast.Photo: The Oshodi district of Lagos, 2008 (AFP/Getty Images)

The Syrian poet Nizar Qabbani was one of the most influential and famous Arab cultural figures of the 20th century. His enduring legacy has become contested territory in the conflict that has torn his homeland apart.

In the mid 2000s disability campaigners in Mexico were stepping up their efforts to secure changes in laws and attitudes in their country. They faced indifference from politicians and business leaders, and stereotypical portrayals in the media. For the estimated 4.3 million women with disabilities in Mexico, the situation was even more difficult. Maryangel Garcia-Ramos, who has become one of her country's leading disability activists, tells Mike Lanchin about her own personal struggle and the battle for recognition for women with disabilities, who she calls "the forgotten sisters."Photo:Maryangel Garcia-Ramos at UN headquarters, New York, June 2019 (courtesy of Maryangel Garcia-Ramos)

When the RMS Titanic sank in 1912, after hitting an iceberg in the North Atlantic, roughly 700 passengers survived by escaping in the ship's lifeboats. Among them were six Chinese sailors travelling in third class. Unlike other survivors, their stories remained untold for decades. They faced racism and a hostile immigration system when they reached America. Viv Jones speaks to Tom Fong, the son of one of the Chinese sailors. He only found out what had happened to his father after his death.Photo: Tom’s father, Fang Lang. Credit: LP Films.

The economist John Maynard Keynes transformed 20th century economic policy. Considered one of the great minds of his age, his seminal work The General Theory of Employment, Interest and Money, sought to diagnose and find solutions to the misery and mass unemployment of the Great Depression. For decades his ideas were central to economic policy adopted across the western world and have made a comeback after the financial crash of 2008. Alex Last presents rare recordings of Keynes from the BBC archive and speaks to Lord Skidelsky, Emeritus Professor of Political Economy at Warwick University and biographer of Keynes.Photo :John Maynard Keynes, the famous economist pictured at his home in London, 1929 (Getty Images)

Nicolae Ceaușescu was the first communist leader to be given a full state visit to the UK, but it was controversial from the outset. The Romanian president was a known dictator who ran a brutal regime, but Britain was still cash-strapped after World War Two and was desperate to build new trading partners. Dorian Galbinski was one of the main translators for the visit and he explains to Rebecca Kesby some of the background to the event.(Photo: June 1978: Romanian dictator Nicolae Ceaușescu rides in the state carriage with Queen Elizabeth II on his official visit to Britain. Credit: Central Press/Getty Images)

In August 1990 following the Iraqi dictator, Saddam Hussein’s invasion of neighbouring Kuwait hundreds of foreign nationals were held hostage by the Iraqi government. Among them were the Rahims, a British Muslim family who had been in Iraq on a religious pilgrimage. Sameer Rahim has been speaking to Farhana Haider about his time as Saddam's prisoner. Image: Saddam Hussein with western hostages, Iraq 1990 Credit: Shutterstock

When Indian independence leaders, including Gandhi, were jailed in 1942, activists set up a secret radio station to carry the message of rebellion against British rule. Among the campaigners who worked at the station was Usha Mehta, who was later imprisoned for broadcasting anti-British news and playing patriotic music. Claire Bowes has been listening to archive material of Usha Mehta and speaking to her nephew, Indian film-maker Ketan Mehta. Image: Usha Mehta Credit:Mani Bhavan Gandhi Sangrahalaya, Mumbai

The last remaining US forces pulled out of Vietnam on April 30th 1975 as communist North Vietnamese troops took control of the country. There was a desperate scramble to evacuate US personnel and some Vietnamese colleagues who feared brutal reprisals at the hands of the communists for having helped the Americans. With the airport destroyed, they had to use helicopter airlifts from inside the US embassy compound to transport people to the USS Midway, an aircraft carrier waiting offshore. Rebecca Kesby speaks to two former US servicemen, Stu Herrington and Vern Jumper, who were involved in the mission.(Photo: A CIA employee helps Vietnamese evacuees onto an Air America helicopter from the top of 22 Gia Long Street, a half mile from the U.S. Embassy. April 1975. Getty Images.)

Genocide has a long and grim history, but until the 1950s, the mass extermination of a people or a group was an atrocity without a name, a definition or an international law against it. One man did more than anyone else to change that: the Polish Jewish lawyer, Raphael Lemkin. He coined the term genocide and fought for decades to stop it. He also survived it, but lost his whole family in the Holocaust. Viv Jones hears his story from Israeli journalist Lili Eylon, who met him at the United Nations and witnessed his one-man lobbying campaign. Photo: Raphael Lemkin in 1950 Credit: Bettmann / Getty Images.