Indiana Jones and the Last Crusade, directed by Steven Spielberg and produced by George Lucas, premiered.
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John Hancock was unanimously elected President of the Continental Congress.
Paavo Nurmi ran a world record time of 3000 meters in 8 minutes and 25 seconds.
Theresa May announced her resignation as British Prime Minister.
The first telegraph message was sent.
Lugano, Switzerland, hosted the first Eurovision Song Contest.
