English composer Henry Purcell was appointed organist of the Chapel Royal, London.
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Batman's 'The Dark Knight' premiered in London.
Alpinists reached the summit of Matterhorn for the first time.
The French Revolution began when the Parisians invaded Bastille Prison.
Lynne and William Jolitz released the Unix-like operating system 386BSD.
NASA's New Horizons space probe completed the first flyby of Pluto in the history of human spaceflight.