List of heads of state 300

Overview
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Other events

Africa

• Aksumite Empire
  • König : Endubis (approx. 270 – approx. 300)

Asia

• Armenia
  • King : Trdat III. (293-330)

• China
  • Emperor : Jin Huidi (290-306)

• Iberia (Kartlien)
  • King : Mirian III. (284-361)

• India
  • Vakataka
    • King : Pravarasena I (284–344)

• Japan (Legendary Emperors)
  • Emperor : Ōjin (270–310)

• Korea
  • Baekje
    • King : Bunseo (298–304)
  • Gaya
    • King : Geojilmi (291–346)
  • Goguryeo
    • King : Bongsang (292–300)
    • King: Micheon (300–331)
  • Silla
    • King : Girim (298-310)

• Sassanid Empire
  • Shah (Great King) : Narseh (293-302)

Europe

• Bosporan Empire
  • King : Thothorses (285 / 286–308 / 309)

• Roman Empire
  • Emperor of the Tetrarchy : Diocletian (284–305)
  • Emperor of the Tetrarchy : Maximian (286–305)
  • Emperor of the Tetrarchy : Constantius I (293–306)
  • Emperor of the Tetrarchy : Galerius (293–311)
    • Consul : Constantius I (300)
    • Consul : Galerius (300)