Caliphs

Rashidun caliphs

Abu Bakr nominated Umar as his successor on his deathbed. Umar, the second caliph, was killed by a Persian slave called Abu Lu'lu'a Firuz. His successor, Uthman, was elected by a council of electors (majlis). Uthman was killed by members of a disaffected group. Ali then took control but was not universally accepted as caliph. He faced two major rebellions and was assassinated following a tumultuous rule that lasted only five years. This period is known as the Fitna, or the first Islamic civil war. The followers of Ali later became the Shi'a ("shiaat Ali", partisans of Ali.) minority sect of Islam and reject the legitimacy of the first three caliphs. Those who accepted all four Rāshidun Caliphs (Abu Bakr, Umar, Uthman and Ali) became the majority Sunni sect.