Pope Leo XIV attends a ceremony marking the 1700th anniversary of the First Council of Nicaea held in the ruins of submerged basilica, revealed in 2014 after water levels receded in Lake Iznik. (Chris ...

Centuries of church schisms show that if there’s a doctrine to be fought over, there’s a good chance Christians will fight about it. That repeated splintering is what makes the Council of Nicaea — a ...

ANKARA, Turkey — Seeking to unify a recently decriminalized faith, Roman emperor Constantine the Great called a summit of early Christians in the ancient Anatolian city of Nicaea. The then-nascent ...

The Vatican on Thursday released a historical document to recognize the opening of the Council of Nicaea, convened during the pontificate of Pope Sylvester I in 325. The International Theological ...

Pope Leo XIV commemorated the 1700th anniversary of the First Council of Nicaea on Friday in the Turkish city historically known as the birthplace of the Nicene Creed, calling Christians to overcome ...

When it was discovered a decade ago, the 4th-century basilica of Nicaea was totally submerged, its importance to early Christian history hidden beneath a lake in northwestern Turkey. Now, the church ...

IZNIK, Turkey —On the second day of his inaugural foreign trip, Pope Leo XIV visited the site where early Christian leaders met 1,700 years ago for the First Council of Nicaea — the gathering that ...