Princess Diana's brother remembers the passionate speech he gave at her funeral, and one of the doctors who treated her at the scene of her fatal car crash remembers her death.

Plus, how George Orwell wrote Animal Farm, the development of a revolutionary new 3D medical scanning technique, and the birth of the online auction site eBay.

Picture: Earl Spencer and Prince William at Princess Diana's funeral. Credit: Getty/AFP

In BBC archive recordings, veterans tell the story of how medical care dealt with the horrors of WW1. Plus when Germany put Nazis on trial, race riots in London's Notting Hill in 1958, and in East Germany in 1992. And the inventors of Botox.

Photo: Australian wounded on the Menin Road on the Western Front, 1917 (Hulton Archive/Getty Images)

On this week's programme, how campaigners took on Nike in the 1990s, plus the Turkish invasion of Cyprus and the newspaper which defied Argentine's military dictatorship. We also find out more about nudism in East Germany and the great Indian poet Rabindranath Tagore.

PHOTO: Nike worker Cicih Sukaesih telling her story in America in 1996 (courtesy of Jeff Ballinger)

Ronald Reagan's joke about bombing Russia in the 1980s, the murder of a Palestinian cartoonist in London, communal violence in India a year before partition, the man who discovered the Great Pacific Garbage patch, and Florence Nightingale, in her own words and those of people who knew her.

Photo: American president Ronald Reagan in the 1980s at his desk in the White House, Washington DC. Credit: Hulton Archive/Getty Images

Comedian and broadcaster Pete Price speaks about being subjected to horrific aversion therapy to "cure" him of his homosexuality in 1960s Britain. Plus the 99-year-old former aide to the Chinese nationalist leader, Chiang Kai Shek, a radical new approach to housing in the former USSR, the perils of deep sea commercial diving in the North Sea and how the Welsh fought for recognition of their language.

Photo: Pete Price (private collection)

Spooking fighters during the Vietnam War, building the Mont Blanc Tunnel, designing a Nintendo legend, the murder of Gianni Versace and archive voices from the 'Bonus Army' a protest movement of WW1 veterans which shook the US government in 1932.

Photo:Viet Cong guerrillas on patrol during the Vietnam War, 2nd March 1966: (Photo by Keystone/Getty Images)

A watershed moment for Canada's indigenous people as Mohawks take on the developers, the birth of UKIP in Britain, memories of the poet Irina Ratushinskaya who died earlier this month - plus dance music with ballet star Nureyev's defection and illegal raving in England's countryside.

(PHOTO: A Mohawk activist confronts a soldier. Credit: IATV NEWS)

In July 1947 a US rancher found some debris in the New Mexico desert - did it come from an alien spacecraft? Witness hears from the son of one of the US servicemen who investigated the incident, and from Dr David Clarke, expert on UFO history at Sheffield Hallam University.

Plus the first Tamil suicide bombing; a hoard of Anglo-Saxon treasure discovered in an English field; a sex scandal in the USSR during perestroika; and the first non-stop journey around the world in a hot air balloon.

PHOTO: Major Jesse Marcel at Fort Worth, Texas with balloon debris from the Roswell incident - copyright Alamy

In a tourism special we look at the original low-cost transatlantic airline, based in Iceland, the 1960s Hippie trail. Also the journey that led to the best selling Lonely Planet travel guides, political tensions caused by a luxury resort on the Red Sea and how Disney came to Europe.

(Photo: An Icelandic Airlines advertisement from May 1973, in New York's Fifth Avenue (US National Archives)

Murder and conspiracy among Italy's elite, an Italian atrocity in 1930s Ethiopia, Christians in the Korean War, Japan hosts the first Body Worlds, and Asian Americans struggle against racism and violence in the 1980s.