WWI To WWII By Unknown user484 Nov 11, 1918 World War I Ended Period: Nov 11, 1918 to Sep 1, 1939 World War I to World War II Jun 28, 1919 Treaty of Versailles Jul 1, 1922 Japanese Communist Party was formed. Oct 29, 1922 Benito Mussolini was appointed Prime Minister of Italy Nov 12, 1927 Joseph Stalin gained undisputed control of the Soviet Union Oct 24, 1929 Black Thursday - Stock Market Crashed Jan 1, 1930 Start of the Dustbowl Sep 1, 1931 The Manchurain Incident May 15, 1932 Japanese Prime Minister Inukai Tsuyoshi was assassinated Jan 30, 1933 Adolf Hitler appointed Chancelor of Germany Mar 4, 1933 Franklin D. Roosevelt inaugurated Mar 20, 1933 Dachau - The First Nazi Concentration Camp Established Jul 14, 1933 Natzi Party becomes the official party of Germnay Oct 19, 1933 Germany left the League of Nations Sep 1, 1934 Soviet Union joins the League of Nations Sep 15, 1935 The Nuremburg Law of 1935 was passed Mar 6, 1936 Germany violated the Treaty of Versailles Aug 1, 1936 Olympics in Berlin Nov 1, 1936 Anti-Comintern Pact was signed by Germany and Japan Dec 1, 1936 Hitlor decreed that all youth 10-18 join Hitler Youth Jan 20, 1937 Franklin D. Roosevelt;s Second Inaugeration Sep 1, 1939 World War II Began