Michael Moorer claimed the heavyweight boxing title after smashing Evander Holyfield in Paradise, Nevada, US.
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A controversial bill to send asylum seekers to Rwanda was approved by the UK's parliament.
President Richard Nixon died of a stroke at the age of 81.
Spain and Portugal signed the Treaty of Saragossa.
The final gasps of the Crab Head nebula were observed as it went supernova.
The German army used chlorine gas for the first time.