Imagine stepping into a church that looks fully Orthodox—icons, incense, chanting, bearded priests—but it's actually Catholic ...

Pope Francis and Kirill, patriarch of Moscow and all Russia, signed a Joint Declaration in Havana in 2016, which aimed to ...

But the two churches started using different calendars after Pope Gregory XIII’s adaptation in 1582, when the Western church adopted the Gregorian calendar while the Eastern Orthodox Church kept ...

All Roman Catholics are Christians, but not the other way around, differing in beliefs about the sacraments, the pope, the ...