How US inmates turned to Buddhism to face execution in 1990s Arkansas, and we look at the history of the death penalty in the US with Prof Vivien Miller. Plus, the truth of a space "strike", the 70s book that predicted global decline in 2020, sequencing the Ebola virus and we hear the world's oldest song.

Photo: Anna Cox and inmate Frankie Parker.

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.

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)