world war two timeline By krista stenmark Jun 29, 1919 treaty of versailles Aug 10, 1935 neutrality act Aug 23, 1939 nazis soviet non aggression pact Sep 1, 1939 start of war (germany invaided poland) Oct 21, 1939 the manhattan project Mar 11, 1941 lend lease act Aug 14, 1941 atlantic charter Dec 7, 1941 japanese bomb pearl harbor Jun 6, 1944 d-day Jan 27, 1945 liberation of auschwitz Feb 4, 1945 yalta conference Apr 12, 1945 truman becomes president May 8, 1945 V E day (gernans surrendur) Sep 2, 1945 formal surrender papers signed (japan) Oct 1, 1946 nuremberg trial