John Lennon and Yoko Ono were served deportation papers for overstaying in the US.
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King Gustav III of Sweden was shot during a masquerade ball at the Royal Opera Hall in Stockholm.
British bomber planes obliterated 89% of Würzburg, Germany, within just 20 minutes.
The Dow Jones Industrial Average experienced the single-largest point drop in history.
The world's first liquid-fueled rocket was launched.
The US celebrated its very first National Book Awards.
