QUICK FACTS:
People groups: 1,056
Population: 703,804,255
Unreached people groups: 656
UPG population: 607,804,070
Unengaged UPGs: 240
UUPG population: 32,657,520
Number of countries: 137
Base Religion: Christianity
Description: Roman Catholicism is the largest branch of the Christian church and is among the oldest religious institutions in the world. The Catholic Church teaches that it is the one true Church founded by Jesus Christ and that its bishops are the successors of Christ.
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