Photo: Byzantine fresco, Basilica of Saint Nicholas, Demre, Turkey.

‘Thus did Christianity become a credal religion.’

Ancient history? Annie Miller on the 1700th anniversary of the Council of Nicaea

‘Thus did Christianity become a credal religion.’

by Annie Miller 25th July 2025

This year is the 1700th anniversary of the Council of Nicaea. The council was a pivotal gathering of Christian bishops, convened by the Roman emperor Constantine I, who had converted to Christianity having seen a vision of a cross in the sky.