British prime minister, Theresa May of the Conservative Party, was elected by the Party’s MPs.
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Donald Trump survived an assassination attempt during a campaign rally in Butler, Pennsylvania.
Swedish-American inventor John Ericsson patented the screw propeller design.
John F. Kennedy was nominated as a presidential candidate by the US Democrats.
The Live Aid concert raised funds and awareness for famine relief efforts in Africa.
The Northwest Ordinance was enacted; it is considered one of the most important legislative acts that the Confederation Congress of the US passed.