Seventy-five years ago, Nazi police chief Heinrich Himmler announced the opening of the first concentration camp for political prisoners, ushering in one of the most tragic chapters in modern history.
Dachau, located about 10 miles northwest of Munich, opened in March 1933, just weeks after Adolf Hitler came to power in Germany. In the beginning, prisoners were mostly opponents of the Nazi government, including Communists, trade unionists and Social Democrats.
But by 1938, there were around 10,000 Jewish prisoners at Dachau. The camp would eventually hold as many as 188,000 prisoners, and the Nazis used Dachau as a model and training center for its other concentration camps.