QUICK FACTS:
People groups: 1,911
Population: 1,641,307,750
Unreached people groups: 1,822
UPG population: 1,669,495,240
Unengaged UPGs: 908
UUPG population: 137,335,515
Number of countries: 143
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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