who was involved in the council of nicaea
First Council of Nicaea The First Council of Nicaea (/naɪˈsiːə/; Greek: Νίκαια [ˈni:kaɪja]) was a council of Christian bishops convened in the Bithynian city of Nicaea (now İznik, Bursa province, Turkey) by the Roman Emperor Constantine I in AD 325. Constantine I organized the Council along the lines of the Roman Senate and presided over it, but did not cast any official vote.
History of Christian theology The doctrine of the Trinity, considered the core of Christian theology by Trinitarians, is the result of continuous exploration by the church of the biblical data, thrashed out in debate and treatises, eventually formulated at the First Council of Nicaea in AD 325 in a way they believe is consistent with the biblical witness, and further refined in later councils and writings.[1] The most widely recognized Biblical foundations for the doctrine's formulation are in the Gospel of John.[1]