Pope Leo XIV and Ecumenical Patriarch Bartholomew I, the spiritual leader of the world's Eastern Orthodox Christians, arrive for an Ecumenical prayer service at archaeological excavations of the ancient Byzantine-era Christian Saint Neophytos Basilica, in Iznik, Turkey, on Friday.

Pope Leo XIV joined Eastern and Western patriarchs and priests Friday in commemorating an important anniversary in Christian history, gathering at the site in Turkey of an unprecedented A.D. 325 meeting of bishops to pray that Christians might once again be united.

Leo , Ecumenical Patriarch Bartholomew I and other Christian leaders met on the shores of Lake Iznik, the site of the Council of Nicaea that produced a creed, or statement of faith, that is still recited by millions of Christians today.

Standing ov

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