ISLAM AND THE MUSLIM EMPIRE. Islam. A monotheistic religion ; belief in one god. Islam started in the Middle East in the Arabian Peninsula in 622 A.D. Islam means submission , obedience, or peace. Muslim. Muslim, one who believes, a follower of Islam
known as Hegira.
Muhammad conquered the city of Mecca and made it a holy city of Islam.
Polytheistic religious beliefs were replaced with a monotheistic religion, Islam.
The Kaaba, which once housed the statues of many gods and goddesses, was dedicated as a temple to Allah.