First Council of Nicaea

The First Council of Nicaea  was a council of Christian bishops convened in Nicaea in Bithynia by the Roman Emperor Constantine I in AD 325 and presided by Hosius of Corduba (A bishop from the West and probably a Papal delegate). This first ecumenical council was the first effort to attain consensus in the church through an assembly representing all of Christendom.
Its main accomplishments were settlement of the Christological issue of the nature of the Son of God and his relationship to God the Father, the construction of the first part of the Creed of Nicaea, establishing uniform observance of the date of Easter, and promulgation of early canon law.
== Tossup Questions ==
# This event was urged by Hosius of Cordoba, and its attendees discussed the legitimacy of bishops ordained by Meletius of Lycopolis. A young Athanasius of Alexandria debated Eusebius of Nicomedia and Theognis on the subject of the Homoousians. This event saw discussion of lapsed Christians under the persecutions of Licinius. The central debate during this council regarded whether the father and the son were one in being or only in purpose. Convened in Bithynia by Constantine the Great in 325 A.D., for 10 points, identify this church council that condemned Arianism and instituted a namesake creed.