75 years of Unesco

The launch of space shuttle Challenger goes horribly wrong, Rupert Murdoch goes to war with his print unions, Australia's 18th century penal colonies, Sharia law in Nigeria, and Batman comes to TV.Photo: Christa McAuliffe (left) and Barbara Morgan. Credit: Nasa

30 Jan 201650min

The 1982 release of the world's best selling album; plus the untimely death of General George S Patton; the former child star Karolyn Grimes on the film It's A Wonderful Life, the Beagle 2 mission to Mars, and Vladimir Nabokov's scandalous book, Lolita.(Photo: Michael Jackson and assorted zombies in the video for Thriller in 1983. Credit: 01/01/1983 Publicity Handout)

31 Des 201545min

The hunt for Bin Laden in the mountains of Afghanistan; a Ku Klux Klan trial in 1965; the siege of Kut in World War 1; an unexpected alliance in 1980s Britain with Lesbians and Gays Support the Miners; and seminal alternative rock band the Velvet Underground's first gig.(Photo: Afghan fighters look out over a smoking valley after a US B-52 aircraft bombed a front line position in the mountains of Tora Bora in north-eastern Afghanistan. Credit: Associated Press)

12 Des 201550min

Suicide bombings in Amman; a massacre in East Timor that was a turning point on the road to independence; the fall of the Taliban; anti-Sikh riots in India; and the BBC's first wildlife broadcaster

14 Nov 201550min

Angie Dickinson remembers her friend, the Hollywood superstar who became the most high profile celebrity to acknowledge he was suffering from Aids; plus one of the founding members of Cuba's Buena Vista Social Club, the Danish cartoon controversy, remembering Kabul's musicians' quarter and the birth of Karaoke. Photo: Rock Hudson at the BBC.

3 Okt 201550min

In this programme: Korea split along the 38th parallel, child prisoners of the Japanese during World War Two, the notorious Devil's Island penal colony, the man who published Harry Potter and Sue the T-Rex skeleton.Photo: Korea 38th parallel Credit: AFP

15 Aug 201549min