QUICK FACTS:
People groups: 2,234
Population: 536,707,655
Unreached people groups: 346
UPG population: 369,364,725
Unengaged UPGs: 102
UUPG population: 8,826,285
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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