The document provides background information on the life of Jews in Europe before and during World War 2 and the Holocaust. It discusses how Nazism rose to power in Germany and began persecuting Jews. It describes the living conditions for Jews in eastern Europe, Germany, and occupied countries before they were sent to concentration camps. The summary then explains how concentration camps operated, the horrific treatment and brutal experimentation Jews endured, including differences in experiences for men, women, and children. It lists some of the major extermination camps and provides brief descriptions.