Other sociological models created analogies between social change and the West’s technological progress.
In the mid-20th century, anthropologists borrowed from the linguistic theory of .
The specific meaning of social change depends first on the social entity considered.
Changes in a small group may be important on the level of that group itself but negligible on the level of the larger society.
Because of their interrelated nature, a change in one institution will affect other institutions.
Social structure is often treated together with the concept of social change, which deals with the forces that change the social structure and the organization of society.
Social change can evolve from a number of different sources, including contact with other societies (diffusion), changes in the ecosystem (which can cause the loss of natural resources or widespread disease), Social change in the broadest sense is any change in social relations.
Evolutionism implied that humans progressed along one line of development, that this development was predetermined and inevitable, since it corresponded to definite laws, that some societies were more advanced in this development than were others, and that Western society was the most advanced of these and therefore indicated the future of the rest of the world’s population.
This line of thought has since been disputed and disproved.