 Scientific racism fell strongly out of favor in the early 20th century, but the origins of fundamental human and societal differences are still researched within academia, in fields such as human genetics including paleogenetics, social anthropology, comparative politics, history of religions, history of ideas, prehistory, history, ethics, and psychiatry.There is widespread rejection of any methodology based on anything similar to Blumenbach's races.It is more unclear to which extent and when ethnic and national stereotypes are accepted.