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Centuries: 3rd century - 4th century - 5th century Decades: 270s 280s 290s 300s 310s - 320s - 330s 340s 350s 360s 370s Years: 319 320 321 322 323 - 324 - 325 326 327 328 329 Events Constantine becomes the sole emperor of the Roman Empire. End of the Tetrarchy as the Roman mode of government. Edict of Milan[?]: All prosecution of Christians in the Roman Empire is ended. St Peter's Church, Rome, founded. Births Deaths Licinius, former Roman Emperor, executed for treason
Centuries: 3rd century - 4th century - 5th century
Decades: 270s 280s 290s 300s 310s - 320s - 330s 340s 350s 360s 370s
Years: 319 320 321 322 323 - 324 - 325 326 327 328 329
Births
Deaths