History of the Arab region By frogish 160 7th century ce, the dominant religion has been Islam Period: Sep 2, 1300 to Sep 2, 1985 timeline Sep 2, 1400 Mongol Empire in the 13th century Feb 2, 1500 Civilsation in what are now the Arab countires ism any thousands of year old Apr 2, 1600 the religion of Islam dates to the year 610ce Aug 29, 1700 the religion of Islam dates to the year 610ce Jul 2, 1750 The Islamic Empire began to fragament after the collapse of the umayyads in 750 ce Jul 2, 1800 750ce the Islamic Empire reached well beyoned the Arab region Sep 2, 1914 During first world war Sep 2, 1939 After the second world war May 4, 2011 632ce, after Muhamads death, Abu Baker was elected as the Islamis head of state Sep 2, 2011 The fifth Caliph of th Arab Abbasied Dynasty was Harun Al Rashid ( 786-809ce)