Think, for example, of concepts of Roman citizenship, the army and its relationship to broader society, the role of the emperor (in many contexts), games and entertainment, social structure, cities, religion, and the socio-legal status of women. But this system changed over time: it evolved from the laissez faire, syncretistic system embodied in the Principate to the centralized one of the Dominate. Describe the contours of this evolution of the imperial system in a detailed manner. Then, explain the causation underlying it, the evolving role of the emperor within it, and the effects it had upon broader Roman society.