1056 – First seen July 2, 1054, the supernova in the Crab nebula was last seen by the naked eye.
1519 – Spanish conquistador Hernán Cortés established a settlement at Veracruz, Mexico.
1864 – The U.S. Congress passed the Coinage Act of 1864 that mandated that the inscription ‘In God We Trust’ would be placed on all coins minted as United States currency.
1876 – The first ever National League baseball game was played in Philadelphia. Philadelphia Athletics and the Boston Red Stockings. Boston won the game 6-5.
1912 – Pravda, the “voice” of the Communist Party of the Soviet Union, began publication in Saint Petersburg.
1964 – The 1964-1965 New York World’s Fair opened for its first season.
1970 – Earth Day was started by John McConnell, Denis Hayes, Fred Kent, Pete Grannis, and Kristin and William Hubbard and Ira Einhorn.
1978 – The Blues Brothers (John Belushi and Dan Aykroyd) made their first appearance on Saturday Night Live.
1989 – #1 Hit April 22, 1989 – May 12, 1989: Madonna – Like a Prayer
1993 – The Mosaic web browser is released.
1998 – Disney’s Animal Kingdom opened at Walt Disney World in Florida.
2000 – US Federal Agents seized six-year-old Elián González from his relatives’ home in Miami, and sent him back to Cuba.