World War II By mari Jan 30, 1933 the Holocaust begins Sep 1, 1939 Germany invades Poland, beginning WW 2 Japan, Italy, and Germany start taking over Sep 3, 1939 Britain and France declare war on Germany Dec 7, 1941 Japan bombs Pearl Harbor May 7, 1945 the Germans surrender May 8, 1945 the Holocaust ends Sep 16, 1945 after 2 atomic bomb hits, Japan surrenders