People who follow Islam are called Muslims. 1.6 billion people practice this religion today and most live in Russia and Africa.
Islam began I. 610 A.D., when Muhammad claimed to receive divine revelation from the archangel Gabriel. It begin Middle East, specifically in Mecca.
Muhammad was the prophet.
The spreading began when Muhammad and his followers were forced to move to the city of Median. Within a few years, his teaching became so popular he returned with an army of followers and conquered Mecca.
They believed in one God. Their beliefs come form the five central beliefs which are to give, pray, going on pilgrimage, only accepting one God, and that Muhammad was his messenger. They believe in final judgement. Their code of behavior is to do good deeds.
Crescent moon with stars is their symbol which is the Ottoman Empire that became affiliated with the Muslim world.
Two holidays they celebrate are, Eid Al-Fitr and Eid Al- Adha.
Islam is the second largest religion in the world.