world war 1 By Leafs Jul 28, 1914 world war 1 it started in 1914 and ended in 1918 Oct 29, 1929 the great depression it ended in 1939 Jan 1, 1930 the dust bowl it ended 1934 Apr 14, 1935 the dirty thirtys it ended in 1940's Sep 1, 1939 world war 2 it was 6 years Sep 11, 2001 twin towers the plane was hijacked Jun 19, 2015 When isis becomes a threat it ended in 2016.
