Dachau Concentration Camp was the first that the Nazis opened in 1933 in Germany, originally intended to hold political prisoners only. Later it became a camp of forced labor with over 200,000 inmates during its 12 years of operation. The place became an “Academy of Terror”, a role model and a training ground of vast brutality, killing around 40,000 people from 34 nations before it was liberated in 1945 by the American army.