The fact that a Roman emperor was not born in Rome, and spent most of his life outside of Rome, tells us that Rome's importance was on a decline.
Explanation:
Diocletian was a Roman emperor in the third century. This was a period where the Roman Empire was spread out on three continents. Because of the sheer size of the empire, it was not centralized as it was i the past, but instead it was decentralized. The decentralization can best be seen that there were two centers of power, Rome and Constantinople, but also there were smaller divisions in both the eastern and western part of the empire.
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