World War 1 began in the summer; July to be exact.
1 September 1939
April 1917
the year was 1939
Oct 1940
World War 1 began on July 28, 1914 due to the assassination of Archduke Ferdinand.
18th July 1914
there really isn't a set date
02 Sept 1945
treaty was signed on 2nd of september 1945
Signing of treaty on USS Missouri 2nd September 1945 When did World War 2 end
1914 - 1918it began in the summer of 1914 and ended in 1918