Early in the nineteenth century, members in the UK Parliament (MPs) hardly ever debated education. When they did, it was nearly always in the context of aid for the religious instruction of the poor. Indeed, even by 1850, nearly two decades after the first Great Reform Act (1832), the Prime Minister Lord John Russell made the case that a system of compulsory state schooling would be immoral and un-British. Yet, by the ‘80s, MPs debating in Westminster routinely drew connections between schooling and the most critical social issues of the day: social-class mobility and equity, child welfare, national development, emigration, and the civil service, among others. What explains the expanding, and expansive, political uses that elite policymakers put to schooling? How did schooling and education take on such an aggrandized role in society for British statesmen? To address these questions, this paper combines natural language processing techniques, semantic network, discourse, and regression analyses to read and interpret the ∼1.1 million political speeches given in the UK Houses of Parliament during the long nineteenth century (1804–1913). In contrast to explanations emphasizing the direct role that economic, social, and political development as well as conflict played in the UK state’s historic expansion, this piece demonstrates how social scientization, the sweeping international epistemic movement that institutionalized and diffused functionalist social theory, created the context that made it possible for political elites to see and promote schooling as an effective policy instrument of greater cultural rationalization supporting the development of capitalist industrial society.