Caliphate: The History of an Idea
An excerpt from Hugh Kennedy's new book.
Hugh Kennedy is a professor of Arabic at SOAS, University of London. The author of many books, including The Courts of the Caliphs and The Great Arab Conquests, Kennedy lives in London and Scotland.
Image: Mihrab of the Mosque of Córdoba, Spain. Wikimedia Commons/Creative Commons/José Luis Filpo Cabana