Swedish-American inventor John Ericsson patented the screw propeller design.
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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.
British prime minister, Theresa May of the Conservative Party, was elected by the Party's MPs.
The Live Aid concert raised funds and awareness for famine relief efforts in Africa.
British singer-songwriter Lily Allen released her first album, 'Alright, Still,' in the UK.
John F. Kennedy was nominated as a presidential candidate by the US Democrats.
