QUICK FACTS:
People groups: 1,360
Population: 1,234,493,280
Unreached people groups: 602
UPG population: 425,031,325
Unengaged UPGs: 251
UUPG population: 28,272,100
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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