<P> 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 . </P> <P> This ecumenical council was the first effort to attain consensus in the Church through an assembly representing all of Christendom . Hosius of Corduba, who was probably one of the Papal legates, may have presided over its deliberations . </P> <P> Its main accomplishments were settlement of the Christological issue of the divine nature of God the Son and his relationship to God the Father, the construction of the first part of the Nicene Creed, establishing uniform observance of the date of Easter, and promulgation of early canon law . </P> <P> The First Council of Nicaea was the first ecumenical council of the Church . Most significantly, it resulted in the first uniform Christian doctrine, called the Nicene Creed . With the creation of the creed, a precedent was established for subsequent local and regional councils of Bishops (Synods) to create statements of belief and canons of doctrinal orthodoxy--the intent being to define unity of beliefs for the whole of Christendom . </P>

How did the council of nicea changed christianity
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