History of roman empire emperor

The Roman emperors were the rulers of the Roman Empire from the granting of the name and title Augustus to Octavian by the Roman Senate in 27 BC onward.^[1] Augustus maintained a facade of Republican rule, rejecting monarchical titles but calling himself princeps senatus (first man of the Senate) and princeps civitatis (first citizen of the state).

The title of Augustus was conferred on his successors to the imperial position, and emperors gradually grew more monarchical and authoritarian.

The style of government instituted by Augustus is called the Principate and continued until the late third or early fourth century.

Roman Empire Timeline - World History Encyclopedia

The modern word "emperor" derives from the title imperator, that was granted by an army to a successful general; during the initial phase of the empire, the title was generally used only by the princeps. For example, Augustus's official name was Imperator Caesar Divi Filius Augustus. The territory under command of The Complete List of the Emperors of the Roman Empire COW