The first use of the term recorded in the Oxford English Dictionary was by philosopher and social theorist Alain Locke in 1924 to describe Robert Lowie's "extreme cultural relativism", found in the latter's 1917 book Culture and Ethnology. The term became common among anthropologists after Boas' death in 1942, to express their synthesis of a number of ideas Boas had developed. Boas believed that the sweep of cultures, to be found in connection with any sub species, is so vast and pervasive that there cannot be a relationship between culture and race. Cultural relativism involves specific epistemological and methodological claims. Whether or not these claims necessitate a specific ethical stance is a matter of debate. This principle should not be confused with moral relativism.