Religion is a major subfield of ancient history and classical studies, and Roman religion in particular is usually studied today by experts in two rather distinct halves: the religion of the Roman Republic, covering the fifth through first centuries B.C.; and the religious diversity of the Roman Empire, spanning the first four centuries of our era. In Time in Roman Religion, author Gary Forsythe examines both the religious history of the Republic and the religious history of the Empire. These six studies are unified by the important role played by various concepts of time in Roman religious thought and practice.