QUICK FACTS:
People groups: 1,052
Population: 703,025,480
Unreached people groups: 652
UPG population: 604,227,545
Unengaged UPGs: 240
UUPG population: 31,933,445
Number of countries: 134
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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