QUICK FACTS:
People groups: 2,214
Population: 537,670,110
Unreached people groups: 363
UPG population: 377,194,125
Unengaged UPGs: 106
UUPG population: 8,695,660
Number of countries: 121
Base Religion: Christianity
Description: Protestantism is the form of Christian faith and practice which originated with the Protestant Reformation, a movement against what Protestants considered to be doctrinal errors in the Roman Catholic Church. Protestants reject the idea of papal supremacy, instead stressing the authority of scripture alone, justification by faith alone, and salvation through Christ alone.
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