John F. Kennedy was nominated as a presidential candidate by the US Democrats.
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The Northwest Ordinance was enacted; it is considered one of the most important legislative acts that the Confederation Congress of the US passed.
The USSR's Luna 15 robotic spacecraft was launched from the Baikonur Cosmodrome in Kazakhstan.
Swedish-American inventor John Ericsson patented the screw propeller design.
British prime minister, Theresa May of the Conservative Party, was elected by the Party's MPs.
Legend Frank Sinatra recorded his debut single with the Harry James band.
