Leading German physicians and administrators were put on trial for their role during the Holocaust. The resulting Nuremberg Code was a landmark document on medical ethics. Learn more
The German invasion of Poland in the fall of 1939 triggered WWII. Learn more about key dates and events, causes, and related Holocaust history.
Learn more about Greece during World War II.
In May 1939, the St. Louis set sail from Germany to Cuba. Most of the passengers, fleeing Nazi Germany, were denied entry. Learn more about their fates.
Towards the end of 1940, Hungary joined the Axis powers and invaded Yugoslavia and the Soviet Union. Learn more about Hungary before the German occupation.
In September 1939, the Germans launched a campaign of terror intended to destroy the Polish nation and culture. Learn more about the German occupation of Poland.
The United States Holocaust Memorial Museum opened in April 1993. Explore the history of the nation's memorial to the millions murdered during the Holocaust.
Read a summary extract from Eliezer Breslin’s testimony on escaping from the Mir ghetto, given during the WWII war crimes investigation into Semion Serafinowicz.
During WWII, the Children’s Aid Society (OSE) operated 14 children's homes throughout France to save Jewish children from internment and deportation to killing centers.
Yiddish writer Chaim Yelin was a leader of the Kovno ghetto underground resistance movement again the Germans.
We would like to thank Crown Family Philanthropies and the Abe and Ida Cooper Foundation for supporting the ongoing work to create content and resources for the Holocaust Encyclopedia. View the list of all donors.