QUICK FACTS:
People groups: 1,059
Population: 703,763,580
Unreached people groups: 659
UPG population: 607,986,020
Unengaged UPGs: 243
UUPG population: 32,907,820
Number of countries: 136
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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