Definition
Diocletian (c. 244-311 AD) was a Roman emperor who reigned from 284 to 305 AD. He is known for dividing the Roman Empire into the Eastern and Western halves, establishing the tetrarchy (rule by four). His reforms aimed to stabilize the empire after a period of crisis. Diocletian also initiated a period of persecution against Christians. He was a strong and decisive leader who left a lasting impact on Roman history. Think of him as a CEO restructuring a failing company, though with much harsher methods.