The United States and Great Britain signed the Treaty of Paris, ending the Revolutionary war.
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The Viking 2 became the second spacecraft to land on Mars.
John Lennon and Yoko Ono left the UK and headed to New York City, US.
The online auction website eBay was founded by Pierre Omidyar.
John Brallier became the first openly paid professional American Football player when he was paid $10 to play a match.
Sir Malcolm Campbell broke the world record speed exceeding 300 mph on the Bonneville Flats, Utah, US.
