Linked from

The 25 pages that link to Diocletian, each with the reason it gives.

• Byzantine EmpireRelated: His reforms helped establish administrative patterns inherited by the later eastern empire.

• Roman EmpireRelated: His reforms addressed the instability of the third-century imperial crisis.

• Constantine the GreatRelated: His reforms shaped the divided imperial system Constantine inherited.

• Crisis of the Third CenturyBroader topic: His accession conventionally closes the crisis, while his reforms addressed its recurring instability.

• Roman imperial successionBroader topic: His planned division of rule attempted to make succession more orderly.

• PrincipateBroader topic: His reforms conventionally mark the end of the Principate and the beginning of the Dominate.

• Roman provincesRelated: His reforms subdivided provinces and reshaped their place in imperial administration.

• Roman taxationRelated: His reforms systematized assessments as the later empire faced rising fiscal and military demands.

• Western Roman EmpireRelated: His reforms established precedents for governing the empire through multiple imperial courts.

• Roman emperorRelated: His reforms addressed the difficulty of ruling a vast empire from one court.

• Diocletianic PersecutionRelated: His government issued the first anti-Christian edicts and set the campaign in motion.

• TetrarchyRelated: He created the four-ruler arrangement and held senior authority in its first generation.

• DioceseRelated: The church later adopted the Roman administrative term associated with dioceses.

• DalmatiaRelated: His rise brought imperial attention to his home province and its Adriatic coast.

• AurelianRelated: He inherited a reunified empire and extended reforms begun during the crisis.

• Eastern Roman EmpireRelated: His reforms strengthened the eastern court and reshaped the structures later inherited by Constantinople.

• LactantiusRelated: His reign provides the political setting for Lactantius’s work and reported teaching post.

• Roman SyriaRelated: His reforms reshaped provincial structures in the eastern empire, including Syria.

• Division of the Roman EmpireRelated: His rule established the Tetrarchy, an early system of multiple emperors.

• Late Roman EmpireBroader topic: His reforms established much of the later empire’s governing structure.

• NicomediaRelated: He made Nicomedia a major center of imperial administration.

• İzmitRelated: His eastern imperial court made the city a seat of Roman power.

• History of the Roman EmpireRelated: His reforms responded to the instability of the third-century crisis.

• Barracks emperorRelated: His accession is conventionally taken to end the Crisis of the Third Century.

• Era of the MartyrsRelated: His accession in 284 CE supplies the era’s conventional starting point.