Islam (the Arabic word means “submission to God”) is the most recent of the world’s great religions. Its adherents (Muslims, “those who submit” to God) today inhabit the entire North African coast, much of central and west Africa, part of Yugoslavia, and Albania, Egypt, Turkey, the entire Near and Middle East, Pakistan, parts of India, the Malay peninsula, Indonesia, and the Philippine Islands, as well as central Asia and portions of China. Relations with the Muslim world have been crucial to Western civilization since Muhammad founded Islam in the early seventh century.