On This Day: George Zimmerman acquitted of shooting Trayvon Martin
July 13 (UPI) -- On this date in history:. In 1863, opposition to the Federal Conscription Act triggered New York City riots in which at least 120 people died and hundreds were injured. In 1898, Guglielmo Marconi was awarded a patent for wireless telegraphy -- the radio. In 1943, one...