Task: Text Categorization
Input (English): This man's political works include an influential campaign against the Ogden Land Company. This thinker discussed development of the incest taboo in the  Punaluan family, and the Kwakiutl eventually provided a counterexample to his theory of matrilineal-to-patrilineal development. This thinker wrote a work in which he identified Sudanese, Eskimo, and Iriqouis among his titular Systems of Consanguinity, which he wrote in addition to Affinity of the Human Family. He claimed that the title animal had moral sense in The American Beaver and his Works. He also  described successive stages of "savagery", "barbarism", and "civilization" in his most famous work. For ten points, name this American anthropologist of Ancient Society. 
Output (English): Social Science