QUICK FACTS:
People groups: 2,229
Population: 537,541,355
Unreached people groups: 350
UPG population: 369,756,650
Unengaged UPGs: 104
UUPG population: 8,801,085
Number of countries: 122
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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