The 4th century CE saw the division of the Roman Empire and the official adoption of Christianity as a state religion.

• Major Events
  1. Edict of Milan (313 CE)
  2. Division of Roman Empire (395 CE)
• Major Empires
  1. Eastern Roman Empire (Byzantine)
  2. Western Roman Empire
• Major Conflicts
  1. Gothic Wars
  2. Internal power struggles in Rome
• Population Trends
  1. Urban decline in Western provinces, Eastern cities thrive
• Key Leaders
  1. Constantine the Great
  2. Theodosius I
• Key Intellectuals
  1. St. Augustine (Theology)
• Major Religions
  1. Christianity (official religion), Roman Religion, Paganism
• Currency
  1. Solidus (gold coin), Debased Denarius