This document discusses modernization theory, which posits that societies progress through stages from "traditional" to "modern". It is criticized for privileging markers like urbanization, literacy, and industrialization to define modernity. Key questions are raised around who defines modernity and whether all societies truly progress in the same linear way. The theory is also examined in the context of its origins in post-World War 2 United States as a way to promote capitalism over communism and analyze newly decolonized nations. Functionalism, which views society as analogous to a biological organism, is discussed as an influence on modernization theory.