It is 40 years since a video game was invented which would change the way we play.
BBC World Service Online
In 1980 thousands died in the Nigerian city of Kano in an uprising by an Islamic sect.
40 years ago the US launched its heaviest aerial bombardment of the Vietnam War.
In December 1999 a young Dutch man won the first ever Big Brother reality TV show.
On December 25th 1989, Nicolae and Elena Ceauşescu were executed by firing squad.
The British popstar Dusty Springfield went on tour in apartheid South Africa in 1964
How exiles from the Nazis helped British intelligence listen in on German prisoners-of-war
In December 2003 Colonel Gaddafi announced Libya was giving up trying to make WMD
The story of the last US space mission to the moon 40 years ago
In the 1990s it became clear that a brain disease could be passed from cows to humans.
In 1912 Britain's top paleontologists fell for one of the biggest scientific hoaxes ever.
The story of the 1992 film which launched Nigeria's hugely successful movie industry
In the late 1960s a young black American woman rolled up in 'Swinging' London.
How a huge cache of papers showed the true extent of torture across 1970s South America.
Twenty years ago underwater excavations began which unearthed a 2000 year old palace.
In December 1992 US Marines landed on the beaches of Somalia.
On 6 December 1989, a college shooting in Canada left 14 women dead.
How the worst smog in living memory lasted five days and killed thousands of Londoners.
A German teenager managed to evade Soviet defences to land in Moscow's Red Square.