The Roman Empire was governed, in its day-to-day reality, not by emperors but by governors — men appointed to run the provinces who held nearly unlimited authority within their territories for the duration of their term and who constituted the primary interface between Rome and the millions of people who lived under Roman rule without ever seeing the emperor or setting foot in the capital. The quality of Roman provincial governance varied as widely as the quality of the men appointed to it, and the mechanisms for selecting, instructing, supervising, and holding accountable these distant administrators were imperfect in ways that had significant consequences for the populations they served.

Every five years, Rome counted itself. The census — from censere, to assess or value — was among the Republic’s foundational institutions, and its function was simultaneously administrative, fiscal, military, and moral. The censors who conducted it were among the most prestigious officials in Roman public life, elected for an eighteen-month term and charged with counting the citizen population, assessing property for taxation, maintaining the rolls of the Senate and equestrian order, overseeing public contracts, and conducting the ritual purification — the lustrum — that closed the proceedings and symbolically cleansed the community assembled before the gods. That a single process managed population counting, tax assessment, social classification, public contracting, and civic religion simultaneously tells you something about how the Romans understood the relationship between governance and community that modern bureaucratic specialization has dissolved.