The World of Islam Timeline By Justine.Sandoval Period: Jan 1, 600 to Jan 1, 1500 Timeline Jan 1, 630 Muhammad returns to Makkah Jan 1, 635 The Quran is compiled Jan 1, 661 Umayyads establish Islamic Empire Jan 1, 732 Arab forces defeated at the Battle of Tours Jan 1, 1187 Saladin's army invades Jerusalem Jan 1, 1258 Mongols capture Baghdad Jan 1, 1382 Ibn-Khaldun teaches at university in Cairo Mar 2, 2022 Great Mosque of Samarra built Mar 2, 2022 Arab scholars work at the House of Wisdom