The triumphant advance of Muslim armies across the inter-connecting landmass of Asia, Europe and Africa brought into the Islamic Empire large masses of people who were previously Christian, Zoroastrian, Buddhist or Hindu. Conversion to the new faith was slow. The conquering Muslims left the people of the territories alone as long as they paid the protective tax, jizya and did not interfere with...

The Turks forced their way onto the world stage with thunderous momentum. Their galactic advance is marked by three critical events that provide historic benchmarks: the hiring of a Turkish guard by the Abbasid Caliph al Mu’tasim (833); the disappearance of the Samanid State based in Bukhara (999); and finally, the Battle of Manzikert (August 1072). After Caliph al Mu’tasim, the...

Africa, alone among the continents, has a majority Muslim population. Africa gave the Islamic world its first muezzin, Bilal ibn Rabah. It was home to its greatest historian, Ibn Khaldun and the birthplace of its best-known traveler, Ibn Batuta. It produced one of its few genuine mass movements, the Murabitun movement and provided the manpower for the injection of Muslim political military...