Interwar period By Aina0712 Nov 11, 1918 WW1 ends Period: 1919 to 1924 First stage Jun 28, 1919 Treaty of versalles Sep 20, 1922 USSR formation Oct 28, 1922 March on Rome Jan 21, 1923 Lenin's death and Stalin asumes the power Period: 1924 to 1933 Second stage 1926 Germany joins League of Nations 1928 stalin's first five-year plan date 1929 Wall street crash Sep 18, 1931 Japan invades Manchuria Period: 1933 to 1939 Third stage Jan 30, 1933 Hitler becomes chancellor in Germany Oct 1, 1933 Germany withdraws from Leguage of Nations Sep 15, 1935 Nunemberg Race Laws Jul 17, 1936 Begins Spanish civil war Dec 11, 1937 Italy withdraws form League of Nations Mar 18, 1938 Anschluss Mar 15, 1939 Germany ocupates Checoslovaquia Apr 1, 1939 Finishes Spanish Civil War Sep 1, 1939 Germany invades Poland: WW2 begins