On this day :
1955 Disneyland opens, 1776 Congress learns of war of words, 1920 Threepoint seatbelt inventor Nils Bohlin born, 1864 John Bell Hood takes command of the Army of Tennessee, 1945 Potsdam Conference begins, 2011 Casey Anthony released from prison, 1944 Port Chicago disaster, 1938 Wrong Way Corrigan crosses the Atlantic, 1975 Superpowers meet in space, 1996 Flight 800 explodes over Long Island, 1956 High Society Grace Kellys last film opens, 1889 Erle Stanley Gardner is born, 1967 Jimi Hendrix drops out as opening act for The Monkees, 1763 John Jacob Astor is born, 1870 Wild Bill Hickok kills a soldier, 1945 Truman records impressions of Stalin, 1941 Joe DiMaggio ends 56game hitting streak, 1969 Wheeler visits South Vietnam, 1972 South Vietnamese paratroopers fight for Citadel, 1917 Fighting in the streets of Petrograd Russia, 1945 Potsdam Conference convenes,