In that place, in A.D. 325, a united Church laid the doctrinal foundations for believers in every age to follow.

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

A service marking the 1700th anniversary of the Council of Nicaea will be held Oct. 6 at the Cathedral Basilica of Saints ...

VATICAN CITY - Pope Leo XIV said he hoped to visit Turkey in the coming months for a Christian religious commemoration, in what could be his first overseas trip as pontiff.

The cry of innocent victims and mothers mourning their children will not go unheard, Pope Leo XIV said. When Christians chant ...