Historical Events1884 - International Meridian Conference in Washington, D.C. adopts Greenwich Mean Time (GMT) worldwide and creates 24 international time zones with longitude zero at the Greenwich Meridian1930 - Blake and Razaf's "Lew Leslie's Blackbirds of 1930" premieres in NYC1938 - Chester Carlson conducts the first successful experiment in electrophotography and later sells it to the Haloid Company, now known as Xerox Corporation, which names it xerography1968 - Apollo 7 returns to Earth1997 - NHL superstar Wayne Gretzky's wife Janet is knocked unconscious and gets 2 stitches after plexiglass falls on her watching a gameMore Historical Events Famous Birthdays1894 - Mi Lnfng [Lan], Chinese opera performer known as "Queen of Peking Opera" for his portrayal of female roles, born in Beijing, China (d. 1961)1908 - Helmut Gollwitzer, German anti-Nazi theologian and pacifist, born in Pappenheim, Bavaria (d. 1993)1920 - Timothy Leary, American psychologist and advocate for psychedelic drug use, born in Springfield, Massachusetts (d. 1996)1952 - Greg Hawkes, American rock keyboardist (The Cars - "Shake it Up"; "Drive"), born in Fulton, Maryland1974 - Tim Kinsella, American singer-songwriter (Cap'n Jazz; Owls), and visual artist, born in Chicago, IllinoisMore Famous Birthdays Famous Deaths1792 - Guillaume Le Gentil, French astronomer, dies at 671871 - Roderick Murchison, Scottish Geologist (Silurian system), dies at 791937 - Frank Damrosch, German-American author and music teacher (founded New York Musical Institute of Musical Art, later Julliard), dies at 882001 - Helmut Krackowizer, Austrian motorcycle racer and journalist ("Motorcycle Sport", "The History of Famous Makes of Motorcycle"), dies from a heart attack at 802020 - Matt Blair, American football linebacker (6 Pro Bowl 197782; First-team All-Pro 1980; Minnesota Vikings), dies from dementia complications at 70More Famous Deaths