QUICK FACTS:
People groups: 1,367
Population: 1,246,273,500
Unreached people groups: 597
UPG population: 422,479,945
Unengaged UPGs: 250
UUPG population: 28,412,195
Number of countries: 143
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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