The best work in the new “history of capitalism” field borrows from the tool kits of social and cultural historians and rests on the assumption that states, societies, and markets cannot be treated separately from one another. That central observation feeds the contemporary impulse to reconnect subfields, such as business, labor, and politics, which had drifted apart since the 1970s. Already this methodology has returned scholarship on the nineteenth-century United States to the topics of slavery's relationship to capitalism and the realization of selfhood either through manumission, the labor market, or finance.