The Fatimid conquest of Egypt (969) was a defining moment in Islamic history. It destroyed any semblance of central authority in the Muslim world, provoked the reaction of the Turks as defenders of orthodox (Sunni) Islam, impelled the Omayyads in Spain to declare their own Caliphate, launched the powerful Murabitun revolution in western Africa, denied the Muslims their last chance to conquer...

It was a moment in history when the Islamic civilization opened its doors to new ideas from the East and from the West. The confident Muslims took these ideas and remolded them in a uniquely Islamic mold. Out of this caldron came Islamic art, architecture, astronomy, chemistry, mathematics, medicine, music, philosophy and ethics. Indeed the very process of Fiqh and its application to...

Civilizations collide when the transcendental values that govern them are used to define identity. During the Crusades, the Christian belief that God was immanent in the person of Jesus Christ collided with the Islamic vision that God is transcendent. For the Christian world all that was holy and venerable was embodied in the Cross of the Holy Sepulcher on which Jesus is believed to have been...