QUICK FACTS:
People groups: 1,857
Population: 1,544,397,935
Unreached people groups: 1,721
UPG population: 1,514,117,500
Unengaged UPGs: 888
UUPG population: 125,021,675
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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