World War 2 By Mrs. Hollingsworth Period: Jan 1, 1938 to Jan 1, 1946 World War 2 Sep 1, 1939 Germany invades Poland On September 1, 1939 Germany invaded Poland, the act that begun World War 2. Dec 7, 1941 Pearl Harbor Japan's attack at Pearl Harbor in 1941 prompted America to join the war on the side of the Allies. May 8, 1945 V-E Day Victory in Europe, the Allies defeat Germany.
