Arthur Ashe became the first black person to be ranked number one in tennis.
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A 7.8 earthquake hit Flores Island in Indonesia, which caused an 82-foot tsunami, killing about 2,500 people.
Adolf Hitler declared the imminent extermination of the Jews at a meeting in the Reich Chancellery.
The deepest point of land was identified.
Apple made its initial public offering on the US stock market.
King Carloman II of West Francia was mortally wounded while out hunting.
