The history of development studies as a field of academic inquiry can be traced most directly back to the Cold War era when public funding for “development studies” went hand in hand with international development as a state project, particularly in the United States. Economists, sociologists, and planners began to take the development of the “Third World” as an object of analysis, partially in response to new funding opportunities and a discursive context legitimating it as a field of study. By the 1960s, geographers began to take (so-called) “Third World” modernization and development as an object of research. Geographers’ engagement with development as intervention, and eventually the exploration of uneven global development as part of the “ebb and flow of capitalism,” can be divided into three waves. The first wave, visible in the early 1960s, took the quantitative spatial models dominant at the time in geography, such as those concerning urbanization patterns, transportation linkages, regional development, and population movement, and began to apply them to “Third World” contexts. This second wave, linked to the turn toward Marxist theory by a new generation of geographers in the 1960s, explored the uneven geography of wealth and power produced by capitalism and launched a powerful critique of development intervention as imperialism. The third wave of debates emerged in the late 1980s–early 1990s and is associated with poststructural and postcolonial critiques gaining traction at the time in geography and related disciplines.