QUICK FACTS:
People groups: 1,048
Population: 701,860,630
Unreached people groups: 648
UPG population: 601,295,420
Unengaged UPGs: 242
UUPG population: 32,633,720
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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