Islam is a Universal religion.
The hearth of Islam can be tracked back to Saudi Arabia. Islam was founded in about 610 CE when the founder, Muhammad, received his first revelation from God.
DIFFUSION OF ISLAM:
Islam first started in Saudi Arabia. It spread to Palestine, the Persian Empire, and much of India. To the west, Muslims diffused across North Africa and Western Europe, including Spain. Muslims later took control of southeastern Europe and Turkey. By relocation diffusion of missionaries, Islam diffused to sub-Saharan Africa and Southeast Asia. Arab traders also brought Islam to Indonesia.
Islam is divided into two important branches: The Sunni and the Shiite.