Lynne and William Jolitz released the Unix-like operating system 386BSD.
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The French Revolution began when the Parisians invaded Bastille Prison.
Alpinists reached the summit of Matterhorn for the first time.
The Everly Brothers broke up after Phil Avery smashed guitar and stormed off stage.
Harper Lee's second novel, 'Go Set a Watchman,' was published.
American outlaw Billy the Kid, also known as William H, Bonney was shot dead by police.
