The document summarizes key events from 1919-1941 that led up to World War 2, including the Treaty of Versailles which imposed harsh terms on Germany after WWI, the rise of Hitler and the Nazis in Germany, and their implementation of racist policies and persecution of Jews that escalated throughout the 1930s, culminating in the mass murder and genocide of Jews and other groups in Germany and occupied territories during World War 2 known as the Holocaust.