How many concentrationcamps were thre in the holocaust?

Answer 1

There were around 15000 Concentration, Extermination, Transit, Labor, Prison and Sub-Camps during the Nazi era in countries all over Europe including Poland, Germany, Netherlands, Norway, Serbia, Channel Islands, Norway, Moldova, Italy, Belgium, Croatia, Ukraine, France, Estonia, Lithuania, Belarus, Latvia and the Czech Republic. These camps were liberated, prisoners freed and the camps usually destroyed, unless kept as a historical site.