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When did Diocletian abdicate the Roman throne?
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Diocletian
Diocletian.
Diocletian abdicated the Roman throne on May 1, 305 CE.12
After reigning for 20 years, he chose to step down of his own volition, entrusting the affairs of the empire to his successors. Following his abdication, he retired to a palace he had constructed near Salonae, on the Adriatic coast, in what is now Split, Croatia.1