A controversial bill to send asylum seekers to Rwanda was approved by the UK's parliament.
The Paris Agreement was opened for signatures.
President Richard Nixon died of a stroke at the age of 81.
Michael Moorer claimed the heavyweight boxing title after smashing Evander Holyfield in Paradise, Nevada, US.
Thieves stole $3.3 million from the First National Bank of Arizona in Tucson.
Twenty million Americans mobilized to call for greater protections for our planet. This became the world's first Earth Day.
Sir Robin Knox-Johnston completed the world's first non-stop, single-handed global circumnavigation.
Adolf Hitler and Benito Mussolini met in Salzburg, Austria.
The German army used chlorine gas for the first time.
General Laborer Thomas Stevens started his first bicycle trip around the world.
Pyotr Ilyich Tchaikovsky composed his 'Swan Lake' ballet.
The US Congress passed legislation that allowed the 'In God We Trust' inscription on the currency.
Edward & Sarah Bishop and seven others were examined by Magistrates in Salem, Massachusetts, for witchcraft.
Spain and Portugal signed the Treaty of Saragossa.
The final gasps of the Crab Head nebula were observed as it went supernova.
