There are two major types of acculturation: free borrowing where one society selects elements of another culture that they integrate in their own way, and directed change, where one group establishes dominance through military conquest or political control.
Though directed change involves selection, it results from the interference in one SYNONYMS OR RELATED TERMS: convergent evolution; antonym: diffusion CATEGORY: term; technique DEFINITION: Term used to describe the appearance of similar traits in different areas or at different times or in different contexts, as a result of parallel or converging evolution.
Seriation, also called artifact sequencing, is an early scientific method of relative dating, invented (most likely) by the Egyptologist Sir William Flinders Petrie in the late 19th century.
Primates are an order of mammals that includes human beings as well as apes and monkeys.
Cultural anthropology deals primarily with the growth of human societies in the world.
The diffusion of new ideas can come, however, from the peaceful or warlike expansion of a population into new territory.
The theory of diffusion was used in the past to explain the beginning of most new ideas: it was assumed that technological skills such as metalworking, or the building of large monumental structures, could only have begun in one place, whence they diffused to other areas.
It is naturally unstable and so it will spontaneously decay back into N-14 after a period of time.
It takes about 5,730 years for half of a sample of radiocarbon to decay back into nitrogen.
Absolute dating techniques were not available to him (radiocarbon dating wasn't invented until the 1940s); and since they were separately excavated graves, stratigraphy was no use either.
Petrie knew that styles of pottery seemed to come and go over time--in his case, he noted that some ceramic urns from the graves had handles and others had just stylized ridges in the same location on similarly shaped urns.
His worrying about where a pot came from and what period it dated to and what that meant to the other objects buried with it were light-years away from the ideas represented in this photo dated to 1800, in which "Egyptian pots" was considered enough information for the thinking man.