History is not created with a big bang. It moves in subtle, almost imperceptible steps in which all men and women participate. It is an edifice on which the action of every human, no matter how humble, has left its imprint. Great events do occur, but they merely mark the milestones in the continuing unfolding of history. In recreating the critical moments in Islamic history that have molded...

Summary Ibn Al-Haytham (known in the west as Alhazen) which is considered to be the greatest Muslim doctor and one of the greatest researches of optics for all times. Al Haytham is born in city Basra and immigrated to Egypt during reign of Caliph Al Hakim. He is quoted as excellent astronomer, mathematician and doctor as well as one of the best commentators of the Galen and Aristotle’s...

A divided Islamic world offered feeble resistance to the Crusaders who consolidated their hold on the eastern Mediterranean and imposed their fiefdoms on the region. The Seljuks, preoccupied with defending their eastern flank against the Afghan Ghaznavids, had thinned out their western defenses. The pagan Turkish tribes across the Amu Darya on the northeastern frontiers were a constant menace....