In his 1920 essay on the “The Methods of Ethnology,” Franz Boas clearly made the case for human societies’ dynamism and the need to study history and change. Thus, recognition of this fact arose early in the history of anthropology and ethnography, but it did not become central to general practice until later.
In Boas’ article, “Methods of Ethnology”, he argues the hypotheses of hyper-diffusion and linear evolution is flawed, and lack supportive evidence. He provides an alternative anthropological