Despite important continuities in imperial practices and bureaucratic structures, the spatial organization of Chinese government and society evolved in significant ways over the course of the two millenniums of the imperial period (221 bce–1911 ce). Different dynasties were structured in very different ways, some controlling only the agricultural zone of “China Proper,” or portions thereof, and some establishing distinct administrations to exert authority over the jungles, mountains, deserts, and steppe lands on the peripheral exterior. Successive regimes turned to a range of strategies to maintain order in the interior, collect tax revenue, and supply both the enormous population inhabiting the capital and the armies defending the frontiers. In addition, by the beginning of the 2nd millennium ce, there was a noticeable trend toward greater economic and cultural integration across China’s vast territory. A range of factors explain this trend, including the intensification of marketing networks following a medieval commercial revolution, a “localist turn” that spurred a decentralization of the imperial elite, and changes in how policymakers envisioned the nature of their state.