QUICK FACTS:
People groups: 284
Population: 220,023,990
Unreached people groups: 275
UPG population: 309,027,390
Unengaged UPGs: 126
UUPG population: 10,886,990
Number of countries: 68
Base Religion: Christianity
Description: Orthodox Christianity includes Copts, the Assyrian Church of the East, Eastern Orthodox Churches and Oriental Orthodox Churches. These traditions split from the Roman Catholic Church over doctrinal, cultural and linguistic differences. The Orthodox Church considers itself the present-day continuation of the theology and practice established by Jesus Christ through his Apostles.
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