Emperor Constantine I convened the first ecumenical council in Nicaea. Why did he summon all the Christian bishops of his ...

The Romanian Orthodox Church celebrates Holy Emperors Constantine and Elena Day on May 21. Over 1.7 million Romanian citizens ...

Pope Leo XIV addressed Rome’s mayor minutes before making his way to the Basilica of St. John Lateran to take possession of ...

One of the most enduring myths today about the Council of Nicaea is that the council members voted on which books to include in the Bible. This myth is sometimes expanded to include Emperor ...

Imagine a board meeting so momentous that its minutes would be remembered a millennium later. That meeting took place ...

May 21 is a festive day as the Greek Orthodox Church commemorates Saint Constantine, the founder of Constantinople, and his ...

On May 21, the Bulgarian Orthodox Church marks the feast day of St.St. Constantine and Helena - an event with deep religious ...

Istanbul marked the 1,700th anniversary of the First Council of Nicaea, the groundbreaking gathering convened in 325 by ...

Ecumenical Patriarch Bartholomew met with Pope Leo XIV at the Vatican, one day after he attended the papal inauguration ...

You might be wondering: what does a fourth-century church meeting have to do with me today? Actually, quite a lot.

It was a truly hectic Sunday, May 25, for the American-born pope, as he visited the two major basilicas: St. John Lateran and ...

Pope Leo XIV delivered his first homily as Bishop of Rome at the Basilica of St. John Lateran, where he took possession of ...