Sociological and anthropological analysis of how, the notions of racial and ethnic groups, nations, and nationalities, indigenous and nonindigenous, groups, and states and citizenships have evolved, cross-culturally. How they might be reconfiguring, in the present context of economic globalization,, mass migrations, and diasporic formations. Causes, and consequences of the recent resurgence of, ethnicity and the content, scope, and proposals of, ethnic movements.