Flavius Valerius Aurelius Constantinus (Constantinus I, Constantine I, Constantine the Great;)
Died: 337 AD.
280 BC - Born in Naissus on the 27th of February.
293 BC - He served at the court of Diocletian in Nicomedia, after the appointment of his father as one of the two caesares (junior emperors) of the Tetrarchy.
312 BC - Constantine crossed the Alps with his army and attacked Maxentius.
313 BC - He met Licinius in Milan to secure their alliance by the marriage of Licinius and Constantine's half-sister Constantia.
- Constantine announced toleration of Christianity in the Edict of Milan, which removed penalties for professing Christianity and returned confiscated Church property.
316 BC - Constantine acted as a judge in a North African dispute concerning the heresy of Donatism. 325 BC - He summoned the First Council of Nicaea, effectively the first Ecumenical Council, which condemned Arianism and formulated the Trinity as it is known today.
- Constantine is also remembered for convoking the Council of Nicaea, one of many significant impacts the emperor had in the development of the Christian religion.
326 BC - Constantine had his eldest son Crispus tried and executed, as he believed accusations that Crispus had been having an affair with Fausta, Constantine's second wife.
324 BC - Constantine announced his decision to transform Byzantium into Nova Roma.
330 BC - On the 11th of May, he officially proclaimed the city as the new capital of the Roman Empire.
337 BC - Died on the 22nd of May.
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