Concentration camps were not only used by Nazi Germany but also the Soviet Union, though the Soviet camps were harder to find as they were located in Siberia. Concentration camps started being used in South Africa during the Second Boer War. They became widely known after World War 2 when the scale of the Nazi camps and atrocities against Jewish people and political prisoners was revealed. The first Nazi concentration camp was established in 1933 in Dachau. Over 3.5 million people were imprisoned in concentration camps between 1933 and 1945, including many children and women who were subjected to human experimentation. During World War 2 there were over 300 camps in Germany, with Auschwitz being the most infamous where around 1.1 million people died