The Roman era known as the principate ended during the reign of Diocletian.
The Roman era known as the principate ended during the reign of Diocletian.
The Roman Empire was ruled by four co-emperors in an attempt to bring stability after the turbulent third century, but Constantine emerged victorious and took control, marking the end of this era. Diocletian played a crucial role in the transition from the principate to the dominate period.
Augustus ushered in the Roman Empire, while Romulus Augustulus' deposition marked the end of the Western Roman Empire.
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