The Life of Theodotus of Amida is that rare thing: a securely dated eye-witness account of life under Arab Muslim rule in the first century of Islam, and one of the few extant texts from seventh-century North Mesopotamia. It is imbued with local color and contemporary detail, revealing an intimate knowledge of the terrain, its inhabitants and officialdom, as well as the precariousness of the lives of those living in the borderlands between the Byzantine and Islamic empires.