The medieval period -- roughly the 1,000 years from the classical Greco-Roman age to the Renaissance and modern era -- has long been neglected in the history of psychology. Various reasons have been offered for why this period is treated so lightly, for example, that it was a Dark Age, or that it was dominated by anti-intellectual Christian thought. This essay challenges such reasoning and, in conjunction with critiquing these obstacles to inquiry, provides a cursory sketch of some of the more interesting figures of this millennium to stimulate psychologists to reconsider this era.