1 déc. 1941 - Chelmno Opened

Description:

To facilitate the "Final Solution the Nazis established killing centers in Poland, the country with the largest Jewish population. The killing centers were designed for efficient mass murder. Chelmno, the first killing center, opened in December 1941.

https://upload.wikimedia.org/wikipedia/commons/thumb/2/20/Che%C5%82mno_%28Kulmhof%29_1942_%28Ko%C5%82o%29.jpg/300px-Che%C5%82mno_%28Kulmhof%29_1942_%28Ko%C5%82o%29.jpg