Ferrari secured its first Grand Prix victory at the 1951 British Grand Prix.
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Lynne and William Jolitz released the Unix-like operating system 386BSD.
A patent was granted to Robert Goddard for a liquid-filled rocket.
American outlaw Billy the Kid, also known as William H, Bonney was shot dead by police.
English composer Henry Purcell was appointed organist of the Chapel Royal, London.
Alpinists reached the summit of Matterhorn for the first time.
