All of the events below happened on the same day of the month, June 21.
1939: Doctors announce that Lou Gehrig of the Yankees has been diagnosed with Amyotrophic Lateral Sclerosis.
1959: Singer-songwriter Kathy Mattea is born in South Charleston, West Virginia.
1964: Civil rights workers, Andrew Goodman, James Chaney and Mickey Schwerner are murdered in Neshoba County, Mississippi by members of the Ku Klux Klan.
1982: Britain's Prince William, Duke of Cambridge, is born at St. Mary's Hospital in London.
1982: John Hinckley is found not guilty by reason of insanity in the attempted assassination of President Ronald Reagan.
2001: Guitarist, singer and songwriter John Lee Hooker, 83, dies in Los Altos, California.
2001: Actor Carroll O'Connor dies in Culver City, California at age 76.