Six Degrees - the first online social network

Andrew Weinreich founded the first online social network in 1997.

• 10 mins

Vikings in York

Archaeologists uncovered perfectly preserved domestic Viking life in York in the 1970s

• 9 mins

D-Day

Eyewitness accounts of the Allied landings in Normandy during WW2 on 6 June 1944.

• 9 mins

The Little Prince

The mystery surrounding the death of the author of the world famous children's tale

• 9 mins

Broadcasting D-Day

How the BBC reported the Allied invasion of Nazi-occupied France, 6 June 1944

• 9 mins

The Gurkha soldiers fight for equality

A Nepalese regiment of the British army won the right to settle in Britain in 2009.

• 9 mins

The end of the war in Kosovo

Hundreds of thousands of Kosovans fled when NATO began bombing former Yugoslavia in 1999

• 9 mins

The first anti-psychotic drug

How a 1950s drug helped revolutionise the treatment of mental illness

• 9 mins

Christo and Jeanne-Claude wrap the Reichstag

How a huge public art project entranced post-Cold War Berlin

• 9 mins

How America 'lost' China

How an American war hero was sent to stop China becoming communist and failed.

• 9 mins

The first gay marriage in the USA

One gay couple in Minneapolis had a same-sex wedding back in the 1970's

• 9 mins

The death of Neda Soltan

How a young woman became a symbol of anti-government protest in Iran

• 9 mins

Carl Gustav Jung

One of the most influential figures in psychoanalysis died in June 1961

• 9 mins

The assassinaton of Medgar Evers

The American civil rights activist and war hero who was murdered in 1963 in Mississippi.

• 9 mins

Sister Lotus - early Chinese online star

Sister Lotus was an unlikely online celebrity because she was famous for being ordinary.

• 9 mins

The yoga teacher and the violinist

How violinist Yehudi Menuhin and yoga teacher BKS Iyengar helped bring yoga to the West

• 9 mins

The fat acceptance movement

The National Association to Aid Fat Americans, NAAFA, held its first meeting in June 1969

• 9 mins

Catch-22

The story behind Joseph Heller's acclaimed, satirical anti-war novel which sold millions

• 9 mins

The Stonewall Riot

How a protest outside New York's Stonewall Inn inspired the modern gay rights movement.

• 9 mins

The Anfal genocide

Saddam Hussein's war on the Kurds in the 1980s

• 9 mins

Defending a British serial murderer

The lawyer of serial killer Rosemary West recalls the gruesome details of the case

• 9 mins

The US judge accused of sexual harassment

How Supreme Court nominee Judge Clarence Thomas was publicly accused of sexual misconduct

• 9 mins

Germans kidnapped by Nicaragua's rebels

Two German left-wing activists recall their ordeal as hostages of Nicaragua's Contras

• 9 mins

Surviving Cambodia's 'Killing Fields'

The Khmer Rouge took power in 1975, starting their four year genocidal rule.

• 9 mins

The launch of the Walkman

The advent of music on the move in July 1979

• 9 mins

The indigenous fight to stop nuclear waste disposal

How a group of senior, indigenous Australian women fought to save their land.

• 9 mins

The secret diaries of 'Gentleman Jack'

The secret diaries of 19th-century Englishwoman Anne Lister, the 'first modern lesbian'

• 9 mins

China puts tampons on sale

Women in China got access to tampons for the first time in 1985

• 9 mins

The Common Cold Unit

The remarkable UK research centre where thousands went on holiday to catch a cold

• 9 mins

Cuba executes top military officers

Four army officers were sentenced to death for drug trafficking by the Castro government

• 9 mins