US President Franklin D. Roosevelt received a letter from Albert Einstein detailing the possibility of atomic weapons.
Source
Around 200,000 people marched through Washington, D.C. streets to fight for gay and lesbian civil rights.
Australia's first university, The University of Sydney, was inaugurated.
Lionel Richie's second album and best-selling of all time, 'Can't Slow Down,' was released.
Samsung stopped producing Note 7 phones due to batteries exploding on users.
NASA launched its first space probe, Pioneer 1.