Hitler invades Poland on September 1st.
Britain and France declare war.
Rationing (limited amounts of food saved) starts in the United Kingdom.
Japan attacks Pearl Harbor, and the United States enters the war officialy.
The United Sates and the Soviet Union joined the Allie in the war.
The mass murder of Jews began the holocaust.
Italy surrendered, but the others fought on.
The holocaust comes to an end.
Hitler commits suicide, and Germany finally surrenders.
Germany was finally defeated, but Japan didn't give up yet.
The United States dropped two atomic bombs in Hiroshima and in Nagasaki, to end was in Asia.