To navigate the timeline, click and drag it with your mouse, or click on the timeline overview on the bottom.
270 CE
280 CE
290 CE
300 CE
310 CE
320 CE
330 CE
272 CE: Possible year of Emperor Constantine's birth.
306 CE: Constantius the Pale (father of Constantine I ) dies.
308 CE: Constantine I named "caesar" of the west.
312 CE: Roman emperor Constantine I tolerates Christianity.
312 CE: Constantine defeats Maxentius at Milvian Bridge.
312 CE: Constantine I disbands the Praetorian Guard.
312 CE: Constantine I reduces the cohortes urbanae of Rome.
313 CE: The Basilica of Maxentius & Constantine is completed in Rome's Forum Romanum.
313 CE: The Edict of Milan enacted by Constantine I.
315 CE: Arch of Constantine I built in Rome to commemorate victory over Maxentius in 312 CE.
315 CE: The Baths of Constantine I in Rome are completed.
324 CE: Constantine I defeats Licinius at Chrysopolis.
325 CE: Roman Emperor Constantine I calls the Council of Nicaea.
330 CE: Constantinople is founded on the site of old Byzantium as "the new Rome."
337 CE: Death of Emperor Constantine I.