The holocaust is a time during 1939 through 1944, basically during world war 2. The German Soldiers  would take Jews, some blacks, and some homosexuals. They would put them in a concentration camp were they would be put to hard labor and over time death. The biggest concentration camp that killed over a million is Auschwitz. But there were many more concentration camps other than Auschwitz. The holocaust was an infamous time in history that will hopefully never return.