On Aug. 22, 1851, the schooner America outraced more than a dozen British vessels off the English coast to win a trophy that came to be known as the America's Cup.

On Aug. 21, 1831, Nat Turner launched a violent slave rebellion in Virginia, resulting in the deaths of at least 55 white people; scores of Black people were killed in retribution in the aftermath of the rebellion, and Turner was later executed.

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In 1485, England’s King Richard III was killed in the Battle of Bosworth Field, effectively ending the War of the Roses.