Florence and Baghdad: Renaissance Art and Arab Science

The use of perspective in Renaissance painting caused a revolution in the history of seeing, allowing artists to depict the world from a spectator’s point of view. But the theory of perspective that changed the course of Western art originated elsewhere—it was formulated in Baghdad by the eleventh-century mathematician Ibn al Haithan, known in the West as Alhazen. Using the metaphor of the mutual gaze, or exchanged glances, Hans Belting—preeminent historian and theorist of medieval, Renaiss...