Abstract
Whether overtly or covertly, the Ismailis have played an important role in the cultural history of Islam, particularly in Syria and Egypt, where they constituted the Fatimid caliphate, which was to last for around 200 years. After the fall of the Fatimids in 1171 AD and during the subsequent diaspora, they became famous for their strongholds in Iran and Syria, from where they intervened in the various conflicts between Christian powers and the Muslim kingdoms in the Holy Land.