The Nazis established six extermination camps on Polish soil. These were Chelmno (December 1941-January 1945), Belzec (March-December 1942), Sobibor (May-July 1942 and October 1942-October 1943), Treblinka (July 1942-August 1943), Majdanek (September 1941-July 1944) and Auschwitz-Birkenau (March 1942-January 1945) ...
