The 381 Council of Constantinople solidified Trinitarian doctrine, affirmed the Holy Spirit’s divinity, and reshaped the ...

This year, the universal Church celebrates the 1,700th anniversary of the Council of Nicaea, the first ecumenical council ...

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

A quiet yet symbolically significant gathering took place on May 17 at the Coptic Orthodox Patriarchate in Cairo.

But the new pope, in 2025, has done something more than mark an anniversary. By choosing the name “Leo” and explicitly ...

At the Council of Chalcedon in 451, Leo's teachings triumphed, establishing the belief in Christ's dual nature—both human and divine—still held by the Church today. Leo II (Pope from 682-683 ...

Pope Leo I tangled with Attila the Hun and won. Pope Leo III crowned Charlemagne as the first Holy Roman Emperor. This is the ...

So far, Pope Leo XIV has leaned fairly heavily into the legacy of his storied predecessor, Leo XIII, but he reflects Leo X.

The Pope’s baptismal name was revealed after ... Additionally, he taught and led the Council of Chalcedon to affirm that Jesus was one fully divine and one fully human nature and that he was ...

Indeed, the first Pope Leo — known as Leo the Great — served 440-461. He is best known as the pope who persuaded Attila the Hun to turn back from the invasion of Italy. His thinking was also central ...

Pope Leo XIV, formerly Bob from Chicago ... was his contribution to the Council of Chalcedon (451), an ecumenical council of enormous importance in the history of the church that clarified ...

Pope Leo XIV is a dual citizen of the United ... a document that was an important basis for the debates at the Council of Chalcedon, the Fourth Ecumenical Council. He also met Attila the Hun ...