The Dominate, inaugurated by Diocletian, succeeded the Principate of Augustus following the Crisis of the Third Century. The reforms of Diocletian and his immediate successors, notably Constantine, marked major changes in the internal organization of the Empire that made the Dominate differ so strongly with the quasi-republican Principate.
We see this, for example, in the introduction of new administrative divisions like the diocese, and the tendency to divide the empire between multiple emperors such as in 364 with Valentinian I & Valens and in 395 with Honorius & Arcadius. The city of Rome also became more of a ceremonial capital than the sole focal point of the empire. The empire became less of Empire of Rome and more of Empire of the Romans.
In the west, the empire ceased to exist following 476 with the deposition of Romulus Augustulus (or in 480 with the death of Julius Nepos who had nominal control over the west). But in the east, the empire survived for many centuries afterwards.
For some time, the eastern empire retained the reforms, administration and infrastructure left over from the original Dominate. But over time, intense changes (e.g. adoption of Greek as sole official language, loss of the eastern provinces, introduction of theme system) occurred to transform the empire into more of a Byzantine Empire, for lack of a better word.
It is with these intense changes in mind that I pose this question to the board. When did the Dominate end in the Eastern Roman Empire?
We see this, for example, in the introduction of new administrative divisions like the diocese, and the tendency to divide the empire between multiple emperors such as in 364 with Valentinian I & Valens and in 395 with Honorius & Arcadius. The city of Rome also became more of a ceremonial capital than the sole focal point of the empire. The empire became less of Empire of Rome and more of Empire of the Romans.
In the west, the empire ceased to exist following 476 with the deposition of Romulus Augustulus (or in 480 with the death of Julius Nepos who had nominal control over the west). But in the east, the empire survived for many centuries afterwards.
For some time, the eastern empire retained the reforms, administration and infrastructure left over from the original Dominate. But over time, intense changes (e.g. adoption of Greek as sole official language, loss of the eastern provinces, introduction of theme system) occurred to transform the empire into more of a Byzantine Empire, for lack of a better word.
It is with these intense changes in mind that I pose this question to the board. When did the Dominate end in the Eastern Roman Empire?