First Council of Nicaea

Name: First Council of Nicaea
Start: 325

Type Event Region Asia Minor Time 325

In 325 CE Emperor Constantine I convened a council of Christian bishops at Nicaea in Asia Minor to settle the Arian controversy, condemning Arianism …

Timeline

325Nicaea · BithyniaTo heal the divisions of the church within the empire, Constantine I convened about three hundred bishops at Nicaea; the council opened under the emperor's chairmanship, with the agenda focused on the Arian Christological controversy.
325Nicaea · BithyniaThe council rejected the Arian claims, establishing the consubstantiality of Son and Father with the term homoousios, adopted the Nicene Creed and twenty canons, and excommunicated Arius and his few supporters.

Sources

First Council of Nicaea https://www.britannica.com/event/First-Council-of-Nicaea
The Cambridge History of Christianity, Volume 2: Constantine to c.600 — Augustine Casiday, Frederick W. Norris (2007)