The History Hour

NTV was Russia's only nationwide independent TV station until it was taken over in April 2001. We hear from the head of the station at the time. Plus, Ethiopia's Red Terror; the Katyn massacre during WW2; a breakthrough for disability rights in the US with the 504 sit-in; and Sikh bus drivers in the UK win the right to wear turbans to work.Photo: Life size puppets of Russian political leaders including President Putin, on the set of NTV's popular satirical television show "Puppets"; June 29, 2000. Credit: Oleg Nikishin/Newsmakers/Getty

The royal handshake that changed attitudes to AIDS, America enters WW1, plus Egypt's Facebook girl, Nagorno Karabakh and remembering Jane Fonda's workout (Photo: Princess Diana with an AIDS patient at the Middlesex Hospital April 1987. Credit REX/Shutterstock)

In 1994 the world's first genetically-engineered food went on sale in the US. It was a tomato, called the 'Flavr Savr' which stayed fresh for up to 30 days. Plus, a mysterious anthrax outbreak in the Soviet Union; the murder of a Catholic archbishop in El Salvador; and the Teletubbies turn 20.Photo: Roger Salquist, former Chairman and CEO of Calgene (courtesy of Roger Salquist)

100 years since the Russian Revolution, Imperial Russia in colour, AIDS and the mystery of 'Patient Zero', when Indian sex workers marched for employment rights and the British Lord who fled the Nazis in Czechoslovakia as a six year old on the Kindertransport.Photo: 12th March 1917: Barricades across a street in St Petersburg, as a red flag floats above the cannons, during the Russian Revolution. (Photo by Hulton Archive/Getty Images)

Women in Kuwait win the right to vote, and the only women on the front line on the Western Front in World War One; battling smog in Mexico City in the 1980s, the artist Georgia O'Keeffe, and America's first incident of Islamic terror forty years ago.Photo: the first women candidates for parliamentary elections in Kuwait in 2006, Aisha al-Rashid (R) and Rola Dashti (C) (Credit: Yasser al-Zayya/AFP/Getty Images)

Life with Mother Teresa among the poorest of the poor in Calcutta, how the World Health Organisation came to realise that obesity was a global problem and Eleanor Roosevelt in the White House. Plus the immortal cells of Henrietta Lacks - a remarkable story of one woman's impact on medical research.(PHOTO: AP Mother Teresa holds a child in 1978)

In the 1930s, a group of German-American Nazi sympathisers known as the German American Bund held rallies and summer camps across the US. Also, the lawyers who helped Serbian leader Slobodan Milosevic defend himself against war crimes charges and how vandals attacked Denmark's famous Little Mermaid Statue.

From speed-dating to gay romance, from divorce to bigamy we look at recent changes in the way society perceives love and marriage. Plus - an expert view on how to make sure your love endures.Photo: A heart hanging over Carnaby Street in London. Credit: BBC.

This week how American cities like San Francisco became safe havens for undocumented immigrants, the story of Tilikum and first recorded killing of a human by an orca whale, discovering DNA, the ship wreck that gave locals whiskey galore and Kenya's smash hit song - that got everyone singing in Swahili.(Photo: Supporters of Sanctuary Cities demonstrating in San Francisco, January 2017. Credit: AP)

Former South African police minister on ending apartheid, eyewitness to Black Hawk Down, landmark sexual harassment case in India, the last South American war and a record breaking solo trek across the Antarctic Picture: Anti-apartheid protestors demonstrate in Cape Town on the same day that President de Klerk announced the lifting of the ban on the ANC and the release of all political prisoners, including Nelson Mandela (Credit: RASHID LOMBARD/AFP/Getty Images)