Guaraní people
Curt Unckel Nimuendajú (born Curt Unckel; 18 April 1883 – 10 December 1945) was a German-Brazilian ethnologist, anthropologist, and writer. His works are fundamental for the understanding of the religion and cosmology of some native Brazilian Indians, especially the Guaraní people. He received the surname "Nimuendajú" from the Apapocuva subgroup of the Guaraní people, meaning "the one who made himself a home", one year after living among them. Upon taking Brazilian citizenship in 1922, he officially added the Nimuendajú as one of his surnames. On his obituary, his Brazilian-German colleague called him "perhaps the greatest "Indianista" of all time".