About 200,000 people passed through Sachsenhausen between 1936 and 1945.
According to an article published on December 13, 2001 in The New York Times, "In the early years of the war the SS practiced methods of mass killing there that were later used in the Nazi death camps. Of the roughly 30,000 wartime victims at Sachsenhausen, most were Russian prisoners of war". They are died there from exhaustion, disease, malnutrition or pneumonia from the freezing winter cold. Many were executed or died as the result of brutal medical experimentation.