synonymous with the Roman res publica. Among the several meanings of the term res publica, it is most often translated "republic" where the Latin expression refers to the Roman state, and its form of government, between the era of the Kings and the era of the Emperors. This Roman Republic would, by a modern understanding of the word, still be defined as a true republic, even if not coinciding entirely. Thus, Enlightenment philosophers saw the Roman Republic as an ideal system because it included features like a systematic separation of powers. Romans still called their state "Res Publica" in the era of the early emperors because, on the surface, the organization of the state had been preserved by the first emperors without significant alteration. Several offices from the Republican era, held by individuals, were combined under the control of a single person. These changes became permanent, and gradually conferred sovereignty on the Emperor. Cicero's description of the ideal state, in De re Publica, does not equate to a modern-day "republic"; it is more like enlightened absolutism. His philosophical works were influential when Enlightenment philosophers such as Voltaire developed their political concepts. In its classical meaning, a republic was any stable well-governed political community. Both Plato and Aristotle identified three forms of government: democracy, aristocracy, and monarchy. First Plato and Aristotle, and then Polybius and Cicero, held that the ideal republic is a mixture of these three forms of government. The writers of the Renaissance embraced this notion. Cicero expressed reservations concerning the republican form of government. While in his theoretical works he defended monarchy, or at least a mixed monarchy/oligarchy, in his own political life, he generally opposed men, like Julius Caesar, Mark Antony, and Octavian, who were trying to realise such ideals. Eventually, that opposition led to his death and Cicero can be seen as a victim of his own Republican ideals. Tacitus, a contemporary of Plutarch, was not concerned with whether a form of government could be analysed as a "republic" or a "monarchy". He analysed how the powers accumulated by the early Julio-Claudian dynasty were all given by a State that was still notionally a republic. Nor was the Roman Republic "forced" to give away these powers: it did so freely and reasonably, certainly in Augustus' case, because of his many services to the state, freeing it from civil wars and disorder. Tacitus was one of the