"The Scholar and the Caliph" by Jennifer Ouellette is a work of fiction, a imagining of a 10-year period in the life of the medieval Muslim polymath Ibn al-Haytham (AD 965–1040) considered by many historians to be the father of modern optics. He lived during the golden age of Arabic science, creating an early version of the scientific method, two hundred years before scholars in Western Europe. He is most celebrated for his Book of Optics.