Franz Boas
Later career: academic anthropology

Boas was appointed a lecturer in physical anthropology at Columbia University in 1896, and promoted to professor of anthropology in 1899. However, the various anthropologists teaching at Columbia had been assigned to different departments. When Boas left the Museum of Natural History, he negotiated with Columbia University to consolidate the various professors into one department, of which Boas would take charge. Boas's program at Columbia was the first Doctor of Philosophy (PhD) program in anthropology in America.

During this time Boas played a key role in organizing the American Anthropological Association (AAA) as an umbrella organization for the emerging field. Boas originally wanted the AAA to be limited to professional anthropologists, but William John McGee (another geologist who had joined the BAE under Powell's leadership) argued that the organization should have an open membership. McGee's position prevailed and he was elected the organization's first president in 1902; Boas was elected a vice-president, along with Putnam, Powell, and Holmes.

At both Columbia and the AAA, Boas encouraged the "four-field" concept of anthropology; he personally contributed to physical anthropology, linguistics, archaeology, as well as cultural anthropology. His work in these fields was pioneering: in physical anthropology he led scholars away from static taxonomical classifications of race, to an emphasis on human biology and evolution; in linguistics he broke through the limitations of classic philology and established some of the central problems in modern linguistics and cognitive anthropology; in cultural anthropology he (along with the Polish-English anthropologist Bronisław Malinowski) established the contextualist approach to culture, cultural relativism, and the participant observation method of fieldwork.

The four-field approach understood not merely as bringing together different kinds of anthropologists into one department, but as reconceiving anthropology through the integration of different objects of anthropological research into one overarching object, was one of Boas's fundamental contributions to the discipline, and came to characterize American anthropology against that of England, France, or Germany. This approach defines as its object the human species as a totality. This focus did not lead Boas to seek to reduce all forms of humanity and human activity to some lowest common denominator; rather, he understood the essence of the human species to be the tremendous variation in human form and activity (an approach that parallels Charles Darwin's approach to species in general).

In his 1907 essay, "Anthropology", Boas identified two basic questions for anthropologists: "Why are the tribes and nations of the world different, and how have the present differences developed?". Amplifying these questions, he explained the object of anthropological study thus:

We do not discuss the anatomical, physiological, and mental characteristics of a man considered as an individual; but we are interested in the diversity of these traits in groups of men found in different geographical areas and in different social classes. It is our task to inquire into the causes that have brought about the observed differentiation and to investigate the sequence of events that have led to the establishment of the multifarious forms of human life. In other words, we are interested in the anatomical and mental characteristics of men living under the same biological, geographical, and social environment, and as determined by their past.

These questions signal a marked break from then-current ideas about human diversity, which assumed that some people have a history, evident in a historical (or written) record, while other people, lacking writing, also lack history. For some, this distinction between two different kinds of societies explained the difference between history, sociology, economics and other disciplines that focus on people with writing, and anthropology, which was supposed to focus on people without writing. Boas rejected this distinction between kinds of societies, and this division of labor in the academy. He understood all societies to have a history, and all societies to be proper objects of the anthropological society. In order to approach literate and non-literate societies the same way, he emphasized the importance of studying human history through the analysis of other things besides written texts. Thus, in his 1904 article, "The History of Anthropology", Boas wrote that

The historical development of the work of anthropologists seems to single out clearly a domain of knowledge that heretofore has not been treated by any other science. It is the biological history of mankind in all its varieties; linguistics applied to people without written languages; the ethnology of people without historical records; and prehistoric archeology.

Historians and social theorists in the 18th and 19th centuries had speculated as to the causes of this differentiation, but Boas dismissed these theories, especially the dominant theories of social evolution and cultural evolution as speculative. He endeavored to establish a discipline that would base its claims on a rigorous empirical study.

One of Boas's most important books, The Mind of Primitive Man (1911), integrated his theories concerning the history and development of cultures and established a program that would dominate American anthropology for the next fifteen years. In this study, he established that in any given population, biology, language, material, and symbolic culture, are autonomous; that each is an equally important dimension of human nature, but that no one of these dimensions is reducible to another. In other words, he established that culture does not depend on any independent variables. He emphasized that the biological, linguistic, and cultural traits of any group of people are the product of historical developments involving both cultural and non-cultural forces. He established that cultural plurality is a fundamental feature of humankind and that the specific cultural environment structures much individual behavior.

Boas also presented himself as a role model for the citizen-scientist, who understand that even were the truth pursued as its own end, all knowledge has moral consequences. The Mind of Primitive Man ends with an appeal to humanism:

I hope the discussions outlined in these pages have shown that the data of anthropology teach us a greater tolerance of forms of civilization different from our own, that we should learn to look on foreign races with greater sympathy and with a conviction that, as all races have contributed in the past to cultural progress in one way or another, so they will be capable of advancing the interests of mankind if we are only willing to give them a fair opportunity.
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