John F. Kennedy was nominated as a presidential candidate by the US Democrats.
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The USSR's Luna 15 robotic spacecraft was launched from the Baikonur Cosmodrome in Kazakhstan.
Donald Trump survived an assassination attempt during a campaign rally in Butler, Pennsylvania.
British explorer Captain James Cook departed on his second voyage from Plymouth.
British singer-songwriter Lily Allen released her first album, 'Alright, Still,' in the UK.
Legend Frank Sinatra recorded his debut single with the Harry James band.
