December 22, 2017
Roman Emperor Diocletian (Gaius Aurelius Valorous Diocletianus) was born on 22 December 244.

December 3, 2017
Roman Emperor Diocletian Died 3 December 312.

April 30, 2015
On 1 May 305, co-Emperors Diocletian and Maximian retired from office.

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