Spread of Islam By rroush Jan 1, 632 Abu Bakr becomes leader Leader from 632-634 Jan 1, 632 Muhammad dies Jan 1, 633 Muslim conquests begin Jan 1, 634 Umar is leader leader from 634-644 Jan 1, 644 Uthman is leader leader from 644-656 Jan 1, 650 Uthman has the Qur'an written down. Jan 1, 656 Uthman is murdered; Ali becomes fourth caliph Jan 1, 661 Ali is murdered; Mu'awiya becomes caliph. Beginning of Umayyad Caliphate ruler from 661-750 Jan 1, 670 Ruling classes in East and West Africa convert to Islam during the late 600s people were starting to convert Jan 22, 750 abbasid caliphate is established Jan 1, 1258 Mongols capture Baghdad; city is sacked and caliph is killed. End of Abbasid caliphate
