Pennsylvania became the second state to ratify the US constitution.
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Arthur Ashe became the first black person to be ranked number one in tennis.
King Carloman II of West Francia was mortally wounded while out hunting.
Mexico was officially recognized as an independent nation by the US.
A 7.8 earthquake hit Flores Island in Indonesia, which caused an 82-foot tsunami, killing about 2,500 people.
Apple made its initial public offering on the US stock market.
