Ali ibn Abi Talib was the cousin and son-in-law of Prophet Muhammad. He was the (leader) of Islam .
Ali became a Muslim at an early age. He stood by Muhammad loyally when the Muslims were almost driven out of Mecca. He followed Muhammad to Medina. Later, he married Muhammad's daughter, Fatimah. Ali fought bravely in many of Islam's early wars.
Ali worked as an advisor during the reigns of the first three Caliphs (leaders). When Uthman, the third Calip, was killed, Ali was chosen to lead the Muslim. The first civil war in Islamic history took place during Ali's reign. Many Muslims also rose against him, including Muhammad's wife, Aisha, and the governor of Syria.
All Muslims respect Ali for his knowledge and devotion to Islam, but they have different views to his role as Caliph. Some Muslims, called sunni Muslims, thjink that Abu Bakr was Muhammad's rightful successor. Others, called Shi'a Muslms think that Ali should have succeeded Muhammad and not Abu Bakr.
- Shrine (Mosque) of Ali ibn Abi Talib in Najaf, IRAN