The document discusses social, cultural, and political change. It defines the three types of changes and cites their sources and factors. Social change refers to changes in social institutions, behaviors, or relations. Cultural change deals with evolving cultural components. Political change occurs when rulers lose power or the type of governance changes. Sources of change include innovation, diffusion, social contradictions/tensions, and assimilation. Factors driving change are the physical environment, population changes, social structure, attitudes/values, isolation/contact, and perceived needs. Theories discussed are evolutionary theory, conflict theory, functionalist theory, and Pitirim Sorokin's cyclical theory of ideational and sensate cultures. The document concludes with examples of socio