QUICK FACTS:
People groups: 1,859
Population: 1,536,961,110
Unreached people groups: 1,720
UPG population: 1,506,734,375
Unengaged UPGs: 892
UUPG population: 138,241,450
Number of countries: 144
Base Religion: Islam
Description: Sunni and Shia Muslims share many fundamental Islamic beliefs but differ over the question of leadership. Sunni Muslims are those who, at Muhammad's death, agreed that the new leader should be chosen from among the Prophet's followers. Abu Bakr, Muhammad's close friend and advisor was chosen as the first Caliph of the Islamic nation. The word "Sunni" in Arabic means "one who follows the traditions of the Prophet".
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