Coooool Timeline By Macey Period: Jan 1, 1921 to Dec 31, 1946 World War 2 Jul 28, 1921 Adolf Hitler becomes the leader of the Nazi Party Feb 15, 1922 Benito Mussolini appointed Prime Minister of Italy Jan 1, 1929 Josef Stalin sole dictator of the Soviet Union (USSR) Aug 31, 1935 Neutrality Acts passed by US Congress Aug 23, 1939 Nazi-Soviet Pact signed by Hitler and Stalin Sep 1, 1939 Nazis invade Poland; Britain and France declare war on Germany May 10, 1940 Germany invades France and forces it to surrender Aug 14, 1941 Churchill and FDR issue the Atlantic Charter Feb 19, 1942 Japanese Americans interned in isolated camps Dec 16, 1944 Battle of the Bulge – last offensive of German Forces Aug 6, 1945 First Atomic Bombs dropped