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When did Diocletian rule as Roman emperor?
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Diocletian
Diocletian.
Diocletian served as Roman emperor from 284 to 305 CE.12
He ascended to power following a period of near anarchy in the 3rd century and is credited with restoring stability and efficient government to the empire through significant administrative, military, and financial reforms. After ruling for 20 years, he voluntarily abdicated on May 1, 305, to entrust the state to younger leaders.123