world war II By phoebegallagher Period: Mar 15, 1933 to Mar 15, 1945 holocaust Sep 1, 1939 second world war begins. on this date, it is declared that the second world war has begun. it all started when Poland was invaded Period: Sep 1, 1939 to Sep 2, 1945 world war ii May 15, 1940 invasion of france. Period: Jul 10, 1940 to Oct 31, 1940 battle of britain Jul 22, 1941 invasion of russia Dec 7, 1941 pearl harbour Jun 6, 1944 d.day
