Historical Negationism with Regard to Nazi and Communist Crimes

In the 20th century, the German Nazi and communist regimes committed mass crimes on a huge scale. Historical negationism is most often assumed to refer to the Holocaust (also known as the Shoah), that is the extermination of Jews by the Germans and their allies. In fact, however, this phenomenon also applies to other crimes for which both totalitarian systems are responsible, as well as to the Armenian genocide in the Ottoman Empire.