For eight centuries prior to the expulsion of the Moors from Spain, science and technology thrived in an Islamic setting. From my optical perch, I marvel at Ya'qūb ibn Isḥāq al-Kindī's construction of every point on the surface of a luminous object emitting light omnidirectionally, Abū ‘Alī al-Ḥasan ibn al-Ḥasan ibn al-Haytham's correct postulation of the way our eyes see, and Abu Sa'd al-’Ala’ ibn Sahl's geometrical deduction of a law that is commonly associated today with the name of Willebrord van Snel van Roijen. Concurrent advances in other branches of science as well as in mathematics occurred throughout the realm of the Caliphs—atop earlier accomplishments from Italy, Greece, Egypt, Iraq, Persia, and India. At the same time, science and technology were flourishing in China and, to a lesser extent, in India. Balancing China in the east and Spain in the west, the longitude of technoscientific progress probably passed through Syria during most of those centuries.