A wall fresco depicting the First Council of Nicaea in the Sistine hall of the Vatican Library. (CNS photo/Carol Glatz) The various liturgical calendars in use throughout most of Christianity feature ...

The existing canons of the Council of Nicaea show that no Biblical canon was determined. While at least one Church Father, St. Jerome, noted that one book was determined to be Scripture at the council ...

Pope Leo XIV on Sunday urged Christians to deepen their common witness by growing in “ecumenical synodal practices,” ...

Icon from the Mégalo Metéoron Monastery in Greece, representing the First Ecumenical Council of Nikea 325 A.D., with the condemned Arius in the bottom of the icon. (Credit: Wikimedia.) Listen As the ...

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 ...

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 ...

The Council of Nicaea 1,700 years ago recognized that Christian unity had to be based on a common faith and should be demonstrated by a common celebration of Easter, the most sacred feast of the ...

Organised by the Pontifical Gregorian University and the University of Münster, an international conference will take place in Rome next week that focuses on the Council of Nicaea 1700 years ago and ...

ROME (AP) — Pope Francis said on Thursday that he hopes to travel to Turkey next year to commemorate the 1,700th anniversary of the Council of Nicaea, Christianity’s first ecumenical council. The ...

One of the most famous stories about the Council of Nicaea is the legend that St. Nicholas slapped the heretic Arius in the face for his impudence and heretical teaching. Whether this event actually ...

Pope Francis might be traveling to Turkey next year for the 1,700th anniversary of the First Council of Nicaea, according to Eastern Orthodox Patriarch of Constantinople Bartholomew in comments he ...

A Catholic archbishop in Turkey has termed the commemoration of the 1700 th anniversary of the Ecumenical Council of Nicaea as “an opportunity for ecumenical dialogue and unity.” Archbishop Martin ...