The First Council of Nicaea ends. The Council was a meeting of Christian bishops convened in the Bithynian city of Nicaea (now İznik, Turkey) by the Roman Emperor Constantine I. It was specifically called to make a decision about Arianism;
The belief that God created Jesus, and that Jesus was not eternal or one with God. Arianism was growing in popularity, even among church leaders threatening to tear the church apart. Pope Sylvester I did not attend the council but was represented by legates. More