Autocracy represented, in a sense, an end of history. Of course there were all kind of events, battles, assassinations, political stand-offs, new initiatives and inventions; and the participants would have had all kinds of exciting stories to tell and disputes to argue. But unlike the story of the development of the Republic and the growth of imperial power, which revolutionised almost every aspect of the world of Rome, there was no fundamental change in the structure of Roman politics, empire or society between the end of the first century BCE and the end of the second century CE.

