That ostentation of humility which the subtle policy of Augustus had conceived, and the jealous hypocrisy of Tiberius maintained, was gradually dropped by their successors, till despotism became at last recognised in principle as the government of the Roman Empire. With an aristocracy decayed, a populace degraded, an army no longer recruited from Italy, the semblance of liberty that yet survived might be swept away with impunity. Republican forms had never been known in the provinces at all, and the aspect which the imperial administration had originally assumed there, soon reacted on its position in the capital. Earlier rulers had disguised their supremacy by making a slavish senate the instrument of their more cruel or arbitrary acts. As time went on, even this veil was withdrawn; and in the age of Septimius Severus, the Emperor stood forth to the whole Roman world as the single centre and source of power and political action. The warlike character of the Roman state was preserved in his title of General; his provincial lieutenants were military governors; and a more terrible enforcement of the theory was found in his dependence on the army, at once the origin and support of all authority. But, as he united in himself every function of government, his sovereignty was civil as well as military. Laws emanated from him; all officials acted under his commission; the sanctity of his person bordered on divinity. This increased concentration of power was mainly required by the necessities of frontier defence, for within there was more decay than disaffection. Few troops were quartered through the country: few fortresses checked the march of armies in the struggles which placed Vespasian and Severus on the throne. The distant crash of war from the Rhine or the Euphrates was scarcely heard or heeded in the profound quiet of the Mediterranean coasts, where, with piracy, fleets had disappeared. No quarrels of race or religion disturbed that calm, for all national distinctions were becoming merged in the idea of a common Empire. The gradual extension of Roman citizenship through the _coloniæ_, the working of the equalized and equalizing Roman law, the even pressure of the government on all subjects, the movement of population caused by commerce and the slave traffic, were steadily assimilating the various peoples. Emperors who were for the most part natives of the provinces cared little to cherish Italy or conciliate Rome: it was their policy to keep open for every subject a career by whose freedom they had themselves risen to greatness, and to recruit the senate from the most illustrious families in the cities of Gaul, Spain, and Asia. The edict by which Caracalla extended to all natives of the Roman world the rights of Roman citizenship, though prompted by no motives of kindness, proved in the end a boon. Annihilating legal distinctions, it completed the work which trade and literature and