Modern Europe By sassom Period: Mar 5, 1918 to Mar 6, 1962 Modern Europe ArchDuke ferdinand assassinated Mar 7, 1918 Archduke Ferdinand is assassinated Arch duke ferdinand is assassinated Jun 7, 1919 World War I begins Dec 7, 1941 pearl harbor is bombed May 1, 1945 World War II ends Feb 10, 1952 Kruschev begins ruling the USSR May 26, 1985 Gorbachev becomes Soviets new Leader Mar 7, 1991 Communism falls in the Soviet Union