This year marks the 30th anniversary of Ut unum sint, Pope St John Paul II’s landmark encyclical on ecumenism, signed on May ...

Many sacred beliefs of our Catholic faith can be traced to the 21 ecumenical councils held since the fourth century.

To the Plenitude of the Church: May God’s Grace and Peace be with you!

Greek delegation heads to Egypt after court ruling challenges Saint Catherine Monastery's ownership and autonomy in Sinai.

Born Robert Francis Prevost and raised in Chicago, he is the first American to ascend to the papacy. He is a product of an ...

The goal of Nicaea—unity in faith among Christians—remains, but the methodology has changed almost 180 degrees and, if we are ...

Challenge today is to extricate the historical, fully human Mary from theological baggage heaped upon her over centuries ...

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

Pope Leo XIV greets Buddhist monks who present him with gifts during a meeting with religious leaders at the Vatican ...

The Roman Catholic Church’s first American pope is likely to continue many priorities of his predecessor, the late Pope ...

Pope Leo XIV formally began his ministry as the successor of St. Peter by calling for "a united church, a sign of unity and communion, which ...

During a special audience with religious leaders who came to Rome for the inauguration of his papal ministry, Pope Leo XIV vowed to continue working toward Christian unity and pr ...