| Year | Event |
| c. 300 | Rise of Mayan civilization in Mesoamerica |
| 312 | Constantine unites Roman Empire |
| 315 | Christianity recognized in Roman Empire |
| 319 | Development of Arianism |
| 320 | Chandragupta I founds Gupta Empire in North India |
| 325 | Council of Nicaea formulates Nicene Creed |
| 330 | Capital of Roman Empire moves to Constantinople |
| c. 350 | Gothic Bible produced |
| c. 350 | Fortification of London |
| 367 | Picts and Scots attack Britain |
| c. 375 | Hunnish invasions of Europe |
| 393 | Last Olympic Games of classical times |
D. Crystal, The Cambridge Factfinder (Cambridge University Press, 1998)