Lynne and William Jolitz released the Unix-like operating system 386BSD.
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The Everly Brothers broke up after Phil Avery smashed guitar and stormed off stage.
Dr. Benjamin Spock's book 'Common Sense Book of Baby & Child Care' was published.
Batman's 'The Dark Knight' premiered in London.
Alpinists reached the summit of Matterhorn for the first time.
A patent was granted to Robert Goddard for a liquid-filled rocket.