Auschwitz concentration camp started operation after 728 Polish prisoners became the first to arrive.
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Witold Pilecki escaped Auschwitz.
The first prisoners arrive at Auschwitz concentration camp.
Soviet forces liberate Auschwitz.
Auschwitz concentration camp evacuated 56,000 prisoners.
The Sonderkommandos, prisoners who took care of the bodies at the Auschwitz-Birkenau Concentration Camp, protested their pending mass murder.
