Originally combining insights from the Dependency and Annales schools, world‐systems theory is an analytical framework that emerged in the late 1960s to explain long‐term, multiple‐scale social dynamics. Major principles unifying world‐systems approaches are the treatment of world‐systems as primary, historically delimited units of analysis, the emphasis on interconnections across societies, the unprecedented nature of the capitalist mode of production, and the identification of unevenly influential zones characteristic of world‐systems. Alleged to be, among other things, structuralist, functionalist, and/or deterministic, world‐systems perspectives have offered studies largely debunking such charges while expanding research horizons to include household processes, indigenous peoples' histories, and environmental degradation, among other areas. Though intrinsically geographical, world‐systems perspectives did not receive geographers' attention until the 1980s, mostly in economic and political geography. Nevertheless, geographers have made important contributions in shaping world‐systems perspectives through theoretical development and critique, particularly in the understanding of urban processes, states, and geopolitics.