Jul 25 Constantine I is proclaimed Roman emperor by his troops.
Jul 25 Gaius Flavius V Constantius, under-emperor of Rome 297-306, dies
Oct 28 Mark Aurelius Valerius Maxentius proclaimed emperor of Rome
Nov 30 In this year, St Marcellus I starts his reign as Catholic Pope
Jul 25 Gaius flavius v constantius: Under-emperor of rome 297-306,
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Important Dates And Events In History - Hisdates.Com