* It was in an attempt to resolve the Arian controversy that he convened the first ecumenical council in the history of the church. — See box “Constantine and the Council of Nicaea. ”
* Just ariaanliku tüli lahendamiseks kutsuski ta kokku kiriku ajaloo jooksul esimese oikumeenilise kirikukogu. ( Vaata kasti ” Constantinus ja Nikaia kirikukogu ”.)