324

align="center" colspan=2 | Years:
320 321 322 323 - 324 - 325 326 327 328

align="center" colspan=2 | Decades:
290s 300s 310s - 320s - 330s 340s 350s

align="center" | Centuries:
3rd century - 4th century - 5th century

Events

Constantine becomes the sole emperor of the Roman Empire. End of the Tetrarchy as the Roman mode of government.
St Peter's Church, Rome, founded.
Eustathius becomes bishop of Antioch

Births Deaths

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