Final answer:
Dachau was the first concentration camp, established in Germany in 1933. It served as a model for other camps and held political prisoners, as well as other individuals deemed undesirable by the Nazis.
Step-by-step explanation:
The first concentration camp was Dachau. It was established in March 1933 near Munich, Germany. Dachau served as a model for all subsequent concentration camps and was primarily used to hold political prisoners during the early years of the Nazi regime. It later expanded to include various categories of prisoners, including Jews, homosexuals, and others deemed undesirable by the Nazis.
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