World War II By Stormy13 Jun 19, 1919 Signing of the Treaty of Versailles. Jun 28, 1919 League of Nations founded. Jul 29, 1921 Adolf Hitler becomes leader of National Socialist (Nazi) Party. Sep 8, 1926 Germany admitted to League of Nations. Oct 29, 1929 Stock Market on Wall Street crashes. Sep 14, 1930 Germans elect Nazis making them the 2nd largest political party in Germany Nov 8, 1932 Franklin Roosevelt elected President of the United States. Jul 14, 1933 Nazi Party declared Germany's only political party. Oct 14, 1933 Germany quits the League of Nations. Jul 25, 1934 Nazis murder Austrian Chancellor Dollfuss. Mar 16, 1935 Hitler violates the Treaty of Versailles by introducing military conscription. Aug 2, 1935 German President Hindenburg dies. Aug 12, 1938 German military mobilizes. Sep 30, 1938 British Prime Minister Chamberlain appeases Hitler at Munich. Mar 15, 1939 Nazis take Czechoslovakia. May 22, 1939 Nazis sign 'Pact of Steel' with Italy. Aug 25, 1939 Britain and Poland sign a Mutual Assistance Treaty. Aug 31, 1939 British fleet mobilizes; Civilian evacuations begin from London. Sep 1, 1939 Nazis invade Poland. Sep 3, 1939 Britain, France, Australia and New Zealand declare war on Germany. Sep 5, 1939 United States proclaims its neutrality; German troops cross the Vistula River in Poland. Sep 10, 1939 Canada declares war on Germany; Battle of the Atlantic begins. Sep 17, 1939 Soviets invade Poland. Sep 29, 1939 Nazis and Soviets divide up Poland. Nov 8, 1939 Assassination attempt on Hitler fails. Nov 30, 1939 Soviets attack Finland. Dec 14, 1939 Soviet Union expelled from the League of Nations. Mar 12, 1940 Finland signs a peace treaty with Soviets. Mar 16, 1940 Germans bomb Scapa Flow naval base near Scotland. May 10, 1940 Nazis invade France, Belgium, Luxembourg and the Netherlands; Winston Churchill becomes British Prime Minister. May 10, 1940 Norway surrenders to the Nazis; Italy declares war on Britain and France. May 15, 1940 Holland surrenders to the Nazis. May 28, 1940 Belgium surrenders to the Nazis. Jun 3, 1940 Germans bomb Paris Jul 10, 1940 Battle of Britain begins. Aug 17, 1940 Hitler declares a blockade of the British Isles. Sep 13, 1940 Italians invade Egypt. Sep 13, 1940 Italians invade Egypt. Sep 16, 1940 United States military conscription bill passed. Oct 7, 1940 German troops enter Romania. Nov 14, 1940 Germans bomb Coventry, England. Nov 23, 1940 Romania joins the Axis Powers.