Important dates in world history in the last 200 years By keiths85279 1822 Photography Invented 1914 World War I 1929 The Great Depression 1933 Creation of the European Union 1939 World War II 1942 Creation of the Atomic Bomb 1959 Hawaii becomes the 50th U.S. State 1989 Fall of the Berlin Wall 1991 Collapse of the Soviet Union 2001 September 11, 2001
