NASA launched its first space probe, Pioneer 1.
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US President Franklin D. Roosevelt received a letter from Albert Einstein detailing the possibility of atomic weapons.
Australia's first university, The University of Sydney, was inaugurated.
The Aleppo, Syria earthquake occurred and was one of the deadliest in history, killing around 230,000 Syrians.
Samsung stopped producing Note 7 phones due to batteries exploding on users.
Theodore Roosevelt became the first US President to fly in an airplane.
