In order to settle this and other matters that were dividing the professed Christians in his empire, in 325 C.E. the pagan emperor Constantine called an ecumenical synod, the Council of Nicaea.
Selle ning teiste küsimuste lahendamiseks, mis tekitasid tema impeeriumis lahknevusi ennast kristlasteks pidavate inimeste seas, kutsus paganlik keiser Constantinus 325. aastal m.a.j. kokku oikumeenilise sinodi, Nikaia kirikukogu.