History of Christianity

First ecumenical councils
The First Ecumenical Councils ©Image Attribution forthcoming. Image belongs to the respective owner(s).
325 Jan 1

First ecumenical councils

İznik, Bursa, Turkey

During this age, the first ecumenical councils were convened. They were mostly concerned with Christological and theological disputes. The First Council of Nicaea (325) and the First Council of Constantinople (381) resulted in condemnation of Arian teachings as heresy and produced the Nicene Creed.

Last Updated: Tue Jun 28 2022

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