Events Leading up to WW2 By evabenne218 Jul 29, 1921 Adolf Hitler becomes the leader of the National Socialist (Nazi) party. Sep 14, 1930 Germans elect Nazis making them the 2nd largest political party in Germany. Jan 30, 1933 Adolf Hitler becomes Chancellor of Germany Apr 1, 1933 Nazi boycott of Jewish owned shops Jul 12, 1933 Nazis open Dachau concentration camp. Jul 14, 1933 Nazi Party declared Germany's only political party. Aug 19, 1934 Adolf Hitler becomes Führer of Germany. Mar 16, 1935 Hitler violates the Treaty of Versailles by introducing military conscription. Aug 12, 1938 Nazis invade Poland Jan 30, 1939 Hitler threatens Jews during Reichstag speech. Sep 1, 1939 Nazis invade Poland