We would like to thank Crown Family Philanthropies, Abe and Ida Cooper Foundation, the Claims Conference, EVZ, and BMF for supporting the ongoing work to create content and resources for the Holocaust Encyclopedia. View the list of donor acknowledgement.
![Chief Prosecutor Benjamin Ferencz presents evidence during the Einsatzgruppen Trial. [LCID: 09918]](https://encyclopedia.ushmm.org/images/thumb/b8542ad8-3e73-4b7c-a368-2dcbc971fa85.jpg)
Nazi Germany committed mass murder on an unprecedented scale. The Nazis and their allies and collaborators killed six million Jewish people. This systematic, state-sponsored genocide is now known as the Holocaust. The Nazis and their allies and collaborators also committed other mass atrocities. They persecuted and killed millions of non-Jewish people during World War II.
![Women survivors huddled in a prisoner barracks shortly after Soviet forces liberated the Auschwitz camp. [LCID: 31450b]](https://encyclopedia.ushmm.org/images/thumb/8fdec1b8-47fa-40f1-9a27-06e7262bad5e.jpg)
Learn more about personal experiences during the Holocaust
![Blanka Rothschild holds one of her prewar family photographs. [LCID: athbr039]](https://encyclopedia.ushmm.org/images/thumb/11721704-922d-4af9-8e09-16ab9e4123c5.jpg)
Explore a timeline of events that occurred before, during, and after the Holocaust.
How and why was the Holocaust possible?
