Explain who introduced these racial theories that were put

Answer 1

into practice during the Nazi regime.

The racial theories that were put into practice during the Nazi regime were introduced by various individuals and groups, including Nazi leaders and other totalitarian regimes, as well as scientists and philosophers who believed in the concept of racial superiority.

One of the most influential figures in promoting racial theories was Adolf Hitler himself, who believed in the supremacy of the "Aryan" race and the inferiority of other races, particularly Jews. Other members of the Nazi party, such as Heinrich Himmler and Joseph Goebbels, were also key figures in promoting these beliefs.

Outside of the Nazi regime, there were also a number of scientists and philosophers who contributed to the development of racial theories. These included individuals such as Alfred Rosenberg, a Nazi ideologue who wrote extensively on the subject of race, and Arthur de Gobineau, a French aristocrat who is often credited with popularizing the idea of "racial purity."

Overall, the development and implementation of racial theories during the Nazi regime was the result of a complex combination of factors, including political ideologies, scientific theories, and social and cultural beliefs about race and ethnicity.