First Council of Nicaea

325 CE · religious

The Council of Nicaea, convened in 325 CE at the call of Emperor Constantine, was the first general (ecumenical) council of Christianity.

By asserting that Jesus was "of the same substance" as the Father, it rejected the views of Arius and adopted the Nicene Creed. The council was a foundational turning point that defined the orthodox framework of the Christian faith and the model of church-state relations.

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Frequently asked questions

What was First Council of Nicaea?
The Council of Nicaea, convened in 325 CE at the call of Emperor Constantine, was the first general (ecumenical) council of Christianity.
When did First Council of Nicaea happen?
325 CE