The Annals and the Histories

Tacitus

Rome from the death of Augustus to the year of the four emperors — the source Gibbon leans on more than any other.

Rome at the beginning was ruled by kings. Freedom and the consulship were established by Lucius Brutus. Dictatorships were held for a temporary crisis. The power of the decemvirs did not last beyond two years, nor was the consular jurisdiction of the military tribunes of long duration. The despotisms of Cinna and Sulla were brief; the rule of Pompeius and of Crassus soon yielded before Caesar; the arms of Lepidus and Antonius before Augustus; who, when the world was wearied by civil strife, subjected it to empire under the title of Princeps. But the successes and reverses of the old Roman…

When after the destruction of Brutus and Cassius there was no longer any army of the Commonwealth, when Pompeius was crushed in Sicily, and when, with Lepidus pushed aside and Antonius slain, even the Julian faction had only Cæsar left to lead it, then, dropping the title of triumvir, and giving out that he was a Consul, and was satisfied with a tribune's authority for the protection of the people, Augustus won over the soldiers with gifts, the populace with cheap corn, and all men with the sweets of repose, and so grew greater by degrees, while he concentrated in himself the functions of the…