Nicene Christianity

Icon depicting Emperor Constantine (center) and the Church Fathers of the First Council of Nicaea of 325 holding the Nicene Creed

Nicene Christianity includes those Christian denominations that adhere to the teaching of the Nicene Creed, which was formulated at the First Council of Nicaea in AD 325 and amended at the First Council of Constantinople in AD 381. It encompasses the vast majority of today's Christian churches.