Years: 309 310 311 312 - 313 - 314 315 316 317

Decades: 280s 290s 300s - 310s - 320s 330s 340s

Centuries: 3rd century - 4th century - 5th century

Events

• February - Conference of Milan .
• Emperor Constantine issues the Edict of Milan, ending all persecution of Christians in the Roman Empire.
• April 30 - Licinius becomes emperor of the eastern half of the Roman Empire.
• October 2 - Lateran synod : Donatism is declared a heresy.