QUICK FACTS:
People groups: 1,240
Population: 813,028,970
Unreached people groups: 605
UPG population: 408,591,725
Unengaged UPGs: 245
UUPG population: 15,667,175
Number of countries: 132
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 found by Jesus Christ and that its bishops are the successors of Christ's apostles.
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