The 4 rightly guided Caliphs

Abu Bakr (632-634 CE)

  • (Elected / acclaimed by 'Umar b. al-Khattab and early Muslims)
  • Wars of Apostacy / Riddah wars; Khalid b. al-Walid defeates Arab tribes by 633.
  • Defeat of Byzantines at Battle of Ajnadayn (in Palestine)


'Umar b. al-Khattab (634-644 CE:) (Designated by Abu Bakr before his death)

635 CE: Conquest of Syria, capture of Damascus
636 CE: Persians defeated at Battle of Qadisiyyah
637  CE: Byzantines defeated at river Yarmuk

  • Introduction of new calendar, beginning with hijra
  • Conquest of Jerusalem
  • Syrian Christian Monophysites siding with Muslim conquerors; Monotheletism as a response by Byzantine church to win back support fails...
  • Founding of Kufah (garrison town; later important center of learning)
640 beginning of conquest of Egypt under `Amr b. al-`As
641 Founding of Fustat, close to present day Cairo
642 Decisive defeat of Persians in Battle of Nihawand


`Uthman b. `Affan (644 - 656 CE)
  • (elected by Shura; "council of elders")
649 CE: Conquest of Cyprus
656 CE: `Uthman is assassinated in context of insurrection; `Ali elected Caliph


`Ali b. Abu Talib (656 - 661 CE)
  • (elected by Shura; "council of elders" / alt.: appointed by Muhammad at Ghadir Khumm)
  • Battle of the Camel: `A'isha bt. Abu Bakr, and some early sahabah, challenge `Ali's legitimacy in battle; `Ali emerges victorious
657 CE: Battle of Siffin
  • Mu'awiyah challenges `Ali in Battle; outcome indecisive; arbitration indecisive.
  • Kharijites secede from `Ali's army.
658 CE: Battle of Nahrawan, `Ali defeats Kharijites
661 CE: `Ali assassinated by Kharijite Ibn Muljam



661- 750 CE Umayyad dynasty:
  • Mu'awiyah "usurps" power, institutes Umayyad dynasty
670 CE: Hassan b. `Ali dies
680 CE: Mu'awiyah dies; son Yazid b. Mu'awiyah takes power
  • Battle of Kerbala (Iraq): Husayn b. `Ali defeated by large army of Yazid b. Mu'awiyah