Abbasids center of learning

Muslim leader recaptured jerusalem

4.which Caliph built uproyal library in fatimids

6.Which Crusade war was known as Children Crusade?

9.Decline of the Fatimilda began in ---------- century

10. Father of Chemistry ----------in Abbasida period

11.Richard the lion heart took expedition in ______ ceusade

12. Imamuddin Zengi conquered _______

13.Kitab Suratal Ard was the famous work written by ______

14.Fatimid dynasty was established by ______

15. Who conquered Spain for the Muslims?