Samuel Colt patents his revolver, the first black U.S. senator takes his seat, Muhammad Ali wins his first heavyweight title, and Ferdinand Marcos flees the Philippines, all on this day.
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Public domain
1866: Miners in Calaveras County, Calif., discover what is now called the Calaveras Skull, human remains that supposedly indicated that man, mastodons and elephants had co-existed. The skull was later proven to be a hoax.