UNESCO - the United Nations Scientific, Cultural and Educational Organisation - was set up 75 years ago, in the aftermath of the Second World War. It’s probably best known for its work protecting cultural monuments and areas of natural beauty around the world, but when it was founded, its aim was to use education as a means of sustaining peace after the horrors of the war. In this episode of The History Hour: UNESCO’s work on race and tolerance, its effort in the 1960s to save Egyptian treasures from the rising waters of the Aswan Dam, Le Corbusier’s attempt to build a model city in India, the fight to protect the Great Barrier Reef and the tragic story of the Bamiyan Buddhas in Afghanistan.

We hear from eye-witnesses to some classic moments in cinema history – from It’s a Wonderful Life to Satyajit Ray’s Apu trilogy via Studio Ghibli, the Sound of Music and Charlie Chaplin’s Great Dictator. Plus, film critic Helen O’Hara tells us about the history of Christmas movies. Photo: one of the final scenes from Frank Capra’s It’s A Wonderful Life, featuring James Stewart, Donna Reed, Carol Coombs, Jimmy Hawkins, Larry Simms and Karolyn Grimes, clockwise from top (photo by Herbert Dorfman/Corbis via Getty Images)

How Pakistan's first democratic elections in 1970 led to war, the break up of Pakistan and the creation of a new country, Bangladesh. Also Gibraltar under Spanish blockade plus refugees from Namibia’s war of independence, Britain’s first reality TV family and Bing Crosby’s White Christmas. Photo East Pakistan 1971 The flag of Bangladesh is raised at the Awami League headquarters. Credit Getty Images

When Chief Albert Luthuli won the Nobel Peace Prize he was living under a banning order in rural South Africa. He won the prize for advocating peaceful opposition to the Apartheid regime. We hear from his daughter Albertina and speak to a South African historian about his legacy. Plus the cave discovery in France that changed the way we think about Neanderthals, the best-selling African-American crime writer Chester Himes, celebrating 100 years since a cinematic first and the reintroduction of beavers that's helping restore Scotland's ecosystem. (Picture: Albert Luthuli receives the Nobel Peace Prize in 1961. Credit: Keystone/Hulton Archive)

In May 1991, the brutal Ethiopian dictator, Colonel Mengistu and his military regime were on the verge of collapse after years of civil war. The end came when a Tigrayan-led rebel movement advanced on the capital Addis Ababa and took power. We get a first-hand account from an American diplomat and hear how the events of 1991 contributed to the current crisis in Ethiopia. Plus, the controversy in France over banning headscarves and other religious symbols from schools, the Nazis' terrifying V1 bombing campaign in World War Two and the story of the Haitian slave leader, Toussaint Louverture. Photo: EPRDF rebels in Addis Ababa, 28 May, 1991 (BBC)

We look back at the fight for disability rights in the UK and India in the 1990s, plus the remarkable life of Helen Keller as told by her great niece, how a Rwandan Paralympic volleyball team made history, and the invention of the iconic disability vehicle, the Invacar. And we speak to Colin Barnes, Emeritus Professor of Disability Studies at Leeds University, about the historic struggle for disabled rights and recognition. Photo: A disabled woman on her mobility scooter is carried away by four policemen after obstructing the traffic outside the Houses of Parliament. Credit: PA Archive/PA Images

Sirimavo Bandaranaike was elected prime minster of Sri Lanka, or Ceylon as it was known then, in 1960 following the assassination of her husband, Solomon Bandaranaike and became the first female prime minister in the world. We hear from Dr Asanga Welikala about her legacy. Plus the first Arab leader to visit Israel, the former hostage taken captive by Somali pirates in 2008 who came to sympathise with their plight and the Jewish refugees given sanctuary by America during WW2. Also the revolutionary and graphic book for women published in 1973 which helped us understand women's bodies and is now published in 33 different languages. Photo: Sirimavo Bandaranaike the Prime Minister of Ceylon (later Sri Lanka), 1960. Credit Keystone/Hulton Archive/Getty Images

In 1985 a group of anonymous female artists in New York began dressing up with gorilla masks on their heads and putting up fly-posters around the city's museums and galleries. We hear from two of the original Guerrilla Girls, who launched a campaign to demand greater representation for women and minorities in the art world. Also on the programme, the rarely heard voices of Africans who were forced to take sides in WW1; how Pluto lost its status as a planet, the invention of a revolutionary sign language, Makaton, in the 1970s, and changing 20th century theories of child rearing. PHOTO: Some of the Guerrilla Girls in 1990 (Getty Images)

In 1995, the Israeli prime minister, Yitzhak Rabin, was murdered at a peace rally in Tel Aviv. We hear how his death scuppered hopes of peace in the Middle East. Plus, the racism endured by children born to black American soldiers and German mothers after World War Two, the rebuilding of Dresden's most famous church, and nude theatre in London and New York. PHOTO: Yitzhak Rabin in 1993 (Getty Images)

Eyewitness accounts of moments in US presidential history: Inside JFK's election victory, remembering Shirley Chisholm - the first African American from a major party to make a presidential run, plus a senator's account of the Watergate hearings, the rise of the religious right and the story of President Bush's 9/11. Photo: US President John F. Kennedy giving his first State of the Union address to Congress in January 1961. (Credit: NASA/SSPL/Getty Images)

In the grips of a drug crisis, why Portugal took a radical approach in 2001 and became the first country in the world to decriminalise all drugs. Also searching for those who disappeared during apartheid rule in South Africa, how mistakes with the initial production of the polio vaccine made thousands of children ill in 1995, plus the black women who helped propel NASA's space programme and Joan Littlewood a giant in 20th century British theatre. (Image: Staffers interview a new patient in Lisbon, Portugal (Credit: Horacio Villalobos - Corbis/Corbis via Getty Images)

In June 1980, US media mogul Ted Turner launched the first TV station dedicated to 24 hour news, Cable News Network or CNN. We get a first-hand account of the early days of a channel that transformed news and politics. Plus, the end of Lebanon's civil war, the long fight for full voting rights for African-Americans and Iraqi dictator Saddam Hussein's plan to become a film mogul. (PHOTO: Ted Turner attends official CNN Launch event at CNN Techwood Drive World Headquarters in Atlanta Georgia, June 01, 1980 (Photo by Rick Diamond/Getty Images)

We present five eyewitness accounts of moments in British black history. Including the late Sam King remembering the voyage of the Empire Windrush, plus Britain's first black headteacher Yvonne Conolly, Dr William Lez Henry on confronting the Far Right in the battle of Lewisham, Reggae star David Hinds on fighting the nightclub colour bar in 1970s Birmingham and Trix Worrell on the creation of the pioneering and hugely popular TV comedy Desmond's. Max Pearson is joined by Colin Grant, the writer, broadcaster and author of Homecoming: Voices of the Windrush Generation. Photo: Newly arrived Jamaican immigrants on board the 'Empire Windrush' at Tilbury, 22nd June 1948: (Douglas Miller/Keystone/Getty Images)

The trial which linked a senior Italian politician to the Mafia, the death of the charismatic Egyptian President - Gamal Abdel Nasser, a whale rescue which brought together cold war enemies, the German house which witnessed a century of change and the birth of Google. Photo: Giulio Andreotti in 1983. Credit: Mondadori Portfolio/Getty Images

An Iraqi father remembers the day in September 2007 when US private security guards opened fire on civilians in central Baghdad killing 17 people, including his 9-year-old son. Plus, former president Ellen Johnson Sirleaf on negotiating the cancellation of Liberia's massive debt; the chaos of Florida's 'hanging chads' in the 2000 US elections; when Nelson Mandela visited Detroit; and the end of the Galileo space project. Photo: An Iraqi looks at a burnt car on the site where Blackwater guards opened fire on civilians in Baghdad on 16 September 2007 (Credit ALI YUSSEF/AFP via Getty Images)

Max Pearson brings you a roundup of this week’s Witness History stories of resistance from the last 70 years. From the early days of opposition to President Alexander Lukashenko in Belarus, through the Mau Mau uprising in Kenya, a photographer's memories of the 1989 demonstrations in China, an iconic civil rights story from the USA, to Argentina and the women who are still demonstrating in the hope of discovering what became of their children under military rule. Photo: a lone protestor, who became known as Tank Man, in Tiananmen Square in China in June 1989. Credit: Stuart Franklin/Magnum.

How Indian women in the 1990s campaigned to stop the sale of alcohol in the state of Andhra Pradesh to protect women from domestic violence and safeguard family finances. The history of America's healthcare system, how the UN was eventually persuaded to apologise for the 2010 cholera outbreak in Haiti and the horror of being caught up in one of the most notorious hi-jackings of the 1970s, plus the birth of Reddit, one the world's most successful websites. Photo A shop selling alcohol in India. Credit Getty.

How author and former intelligence officer Ian Fleming created the British super-spy, James Bond plus, how the British government shifted social care for the disabled away from large institutions and into the community and the Cape Town bombings in 1990s South Africa. Also how a British Airways jumbo jet flew through a volcanic ash cloud and survived and the birth of the Sony Walkman, a device that changed listening habits forever. Photo: Ian Lancaster Fleming, British author and creator of the James Bond character, in 1958. (Getty Images)

Margaret Ekpo helped establish Nigerian independence and became one of the country's first female MPs. We hear from her grandson and speak to a Nigerian feminist about why Nigeria has so few women in government today. Plus the US Supreme Court decision that threatens the voting rights of Black Americans, the policeman turned protestor who was part of the Occupy Wall Street protest, America's first woman combat pilot and the bittersweet memories of the Gaelic-speaking community who left the remote islands of St Kilda in 1930. PHOTO: Margaret Ekpo in London in August 1953 (ANL/Shutterstock)

Randy Weaver was a white separatist in Idaho in the north-west United States who was wanted by the government on firearms charges. When government agents approached his remote cabin on Ruby Ridge in August 1992, it was the start of an eleven day siege involving hundreds of police officers – which ended with the deaths of Weaver’s wife and teenage son, along with a US marshal. The incident would become a touchstone for the American far right. Plus, growing up with Saddam Hussein, the invention of the asthma inhaler and digging up King Richard III of England. PHOTO: Randy Weaver (C) shows a model of his Ruby Ridge, Idaho cabin to US Senator Arlen Specter, R-PA, during Senate hearings investigating the events surrounding the 1992 standoff with federal agents (PAMELA PRICE/AFP via Getty Images).