1864 – Colorado Governor John Evans warned all Native Americans in the region to report to the Sand Creek Reservation or risk attack. The announcement preceded the “Sand Creek Massacre.”
1916 – Actress Mary Pickford became the first cinematic performer to receive a million dollar contract, when she signed a deal that guaranteed her $250,000 per film.
1922 – The American Professional Football Association changed its name to name the National Football League.
1940 – TV cameras were used for the first time in a political convention as the Republicans convened in Philadelphia, PA.
1972 – Bernice Gera became first woman to umpire a baseball game when the Auburn Phillies and Geneva Rangers played. She resigned just a few hours after the game, however, because male umpires refused to work with her.
1997 – The U.S. Air Force released a 231-page report officially dismissing claims of an alien spacecraft crash in Roswell, NM, nearly 50 years earlier.