Testimony of Pejsach Bursztejn, born in Bialystok, Poland, 1909, regarding his experiences in Auschwitz and Birkenau Description of the site intended for construction of Auschwitz; building of Auschwitz, 1941 [should be: 1940]; deportation of the first political inmates from Germany to Auschwitz; abuse of the inmates; erection of the first gas chamber in the bunker; building of Auschwitz2-Birkenau, winter 1942 [should be: 1941]; activating the gas chambers in Birkenau; burning of corpses by inmates known as "Sonderkommando" workers; building of approximately 400 blocks; building the crematorium; building modernized gas chambers; deportation of thousands of Jews from Europe to Birkenau in order to murder them; selections in the camp; deception of the victims before their murder; extracting gold teeth from the mouths of the corpses; building Crematorium Number 4, 1944 [should be: 1943]; building Crematorium Number 5, 1944 [should be: 1943]; transfer of 400 crates containing the eyeglasses of those murdered to Germany; shearing the hair of the women before their entry into the gas chambers; finding approximately seven tons of hair in the camp after the war; murder of pregnant women in the gas chambers; sterilization of 300 young men by X-rays, January 1942; medical experimentation on the inmates; murder of inmates on whom the experiments were conducted; life of the inmates in the camp, including forced labor, morbidity and mortality from exhaustion and starvation; operating the four crematoria 24 hours a day; sexual abuse of beautiful European women by German Kapos and Blockaltestes in Block 21; murder of inmates by shooting in the "Enker" (?) of Block 11; work of Sonderkommando men burning corpses; Sonderkommando Uprising, autumn 1944; murder of approximately 10,000 inmates per hour in the gas chambers; preparation of pits for burning the corpses due to pressure in the crematoria; burning of bodies in the pits; most of the Jewish victims were from Theresienstadt, Greece, France and Poland including children from Bialystok accompanied by Dr. Katzenelson; evacuation of the inmates performing forced labor, November 1944; termination of gas chamber activities, November 1944; partial obliteration of the signs of murder by the Germans; liquidation of the camp, 12 January 1945; demolition of the last crematorium; liberation of the camp by the Red Army, 18 January 1945.