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).
The decision to open a concentration camp for Polish political prisoners in the town of Auschwitz was made by Heinrich Himmler on April 27, 1940. The first prisoners, a group of 728 Poles, arrived at the Auschwitz I camp on June 14, 1940.