Pope Leo XIV joined Ecumenical Patriarch Bartholomew I of Constantinople and other Eastern Orthodox bishops on Friday at the site in modern-day Turkey where their predecessors met 17 centuries earlier to affirm and codify the core tenets of the Christian faith.

This meeting of leaders on either side of the Great Schism at the place of the Nicene Creed's adoption signals another major step in what the pope weeks ago called "the path towards the reestablishment of full communion among all Christians."

'We return to this wellspring of the Christian faith in order to move forward.'

The pope made reference to the lasting significance of the Council of Nicaea in his Friday address at the archeological site of the ancient Basilica of St. Neophytos on the shore of Lake Iznik, especially the

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