Nazi racial theories
The German Nazi Party adopted and developed several racial hierarchical categorizations as an important part of its racist ideology (Nazism) in order to justify enslavement, extermination, ethnic persecution and other atrocities against ethnicities which it deemed genetically or culturally inferior. The Aryan race is a pseudoscientific concept that emerged in the late-19th century to describe people who descend from the Proto-Indo-Europeans as a racial grouping and it was accepted by Nazi thinkers.