An Interior Angle is an angle inside a shape. Note: When we add up the Interior Angle and Exterior Angle we get a straight line, 180Â°. (See Supplementary Angles).
The Concentration Camp at Dachau was opened 22 March 1933, with the arrival of about 200 prisoners from Stadelheim Prison in Munich and the Landsberg fortress (where Hitler had written Mein Kampf during his imprisonment).
On coming to power during 1933 the Nazis began to establish a network of camps. These were initially concentration camps due to the fact that they were used to concentrate enemies and certain groups of people in one place. Local SS and police forces set up these first camps.