Passage: Umayyad rule ended in 750 and was followed by the Arab caliphates of the Abbasid and Fatimid dynasties. Irrigated agriculture was developed under Islamic rule, reaffirming Jericho's reputation as a fertile "City of the Palms". Al-Maqdisi, the Arab geographer, wrote in 985 that "the water of Jericho is held to be the highest and best in all Islam. Bananas are plentiful, also dates and flowers of fragrant odor". Jericho is also referred to by him as one of the principal cities of Jund Filastin.The city flourished until 1071 with the invasion of the Seljuk Turks, followed by the upheavals of the Crusades.

Question: When did Umayyad rule end?
750