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Muslim world - Wikipedia
Islam by country - Wikipedia
Islamic world | History, Population, & Map | Britannica
Islam | Religion, Beliefs, Practices, & Facts | Britannica
Islam - Wikipedia
Muslim world - Wikiwand
Islam - Five Pillars, Nation of Islam & Definition | HISTORY
Islam’s beliefs, practices, and history | Britannica
BBC - Religion: Islam
A History of the Muslim World | Princeton University Press