War Timeline By brittontech Period: Apr 15, 1095 to Apr 15, 1291 Crusades Period: Apr 15, 1337 to Apr 15, 1453 Hundered Years War Period: Apr 15, 1803 to Apr 15, 1815 Napoleonic Wars Period: Jun 28, 1914 to Nov 11, 1918 World War I Period: Sep 1, 1939 to Jan 1, 1945 World War II Period: Apr 15, 1947 to Apr 15, 1991 Cold War Period: Jun 25, 1950 to Jul 27, 1953 Korean War Period: Nov 1, 1955 to Apr 30, 1975 Vietnam War Period: Oct 7, 2001 to Apr 15, 2015 War on Terrorism