This raucous meeting, which took place exactly 1700 years ago, was one of the most important in Christian history.

Anglican Church of Canada faces steep decline, projecting no members by 2040. Leaders focus on activism and efficiency, but critics say collapse stems from deeper cultural and doctrinal issues.

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

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