In the 600s CE, a new religious faith swept out the vast deserts of southern Arabia. A merchant named Muhammad built a following of true believers who steadily grew in numbers and eventually became the worlds second largest faith. The religions beginnings are discussed, along with core beliefs, common practices, and challenges for the future.

The origins of Islam -- What do Muslims believe? -- How do Muslims practice their faith? -- Rules to live by -- What challenges does Islam face in the modern world?.