Adolf Philipp Wilhelm Bastian (26 June 1826 – 2 February 1905) was a 19th-century polymath remembered best for his contributions to the development of ethnography and the development of anthropology as a discipline. His theory of the Elementargedanke resulted in Carl Jung's development of the theory of archetypes. His ideas influenced the "father of American anthropology" Franz Boas and comparative mythologist Joseph Campbell.