islamic timeline By jana6402friedel 570 Muhammed birth 610 Islam begins 622 Islamic calendar 630 Muhammad returns to Mecca 632 Abu Bakr is the "rightly guided" 634 Umar becomes second Caliph 644 Uthman becomes third Caliph 656 Ali Bin Thalib becomes fourth Caliph Period: 661 to 750 move capital to Damaskus 680 Hussein is killed 692 Dome of Rock is completed 711 Muslims enter spain 732 Islamic army enters france Period: 750 to 1258 New capital is Baghdad 780 "Father of Algebra" is born 972 Egypt is founded 1025 Ibn Sina finishes encyclopedia 1048 Omar Khayyam is born 1099 Christians recapture Jerusalem 1187 Saladin retakes Jerusalem 1258 Mongols destroy Baghdad
