they didn't it was a extermination camp not a concentration camp
Chelmno was a killing centre and not a conventional camp. There were only two (!) known survivors, one of the being a Piepel ...
Most inmates were gassed upon arrival at Chelmno.
The camp was near the small town of Chelmno, which is in northern Poland, on the River Nehr. Please see the link.
The Liberators were the Allied powers ( Russia Britain and the united states)
Chelmno was the name of a Nazi concentration camp. It operated from December 8, 1941 to April 11, 1943, in what was considered the most deadly time of the Holocaust.
Gassing in vans. The exahust fumes were directed into the enclosed vans.
The extermination camp Chelmno was located near Chełmno nad Nerem; in Poland.
Chelmno The extermination camp operated from December 1941 till March 1943.
First of all they were German-Nazi concentration camps in occupied Poland. Auschwitz - Birkenau Majdanek Sztutowo - Stutthof Chelmno Bełżec
There are only two (!) known survivors from Chelmno. It was an extermination camp, not a labour camp.
1941.The first extermination camp was Chelmno, which became operational on 8 December 1941.(The first ordinary, permanent concentration camp was Dachau, which opened on 22 March 1933).