The ancient Romans believed that only proper polytheistic worship could maintain the pax Romana, or Roman Peace. In the first century A.D., a splinter sect of Judaism began to crack this wall, bringing upheaval, persecution, and conversion into the lives of Romans, Jews, Christians, and pagans. This exciting volume explores the emergence of Christianity in Rome during the first four centuries of the Greco-Roman empire, from the first followers of Jesus Christ, to conflicts between Christians and Jewish kings under Roman occupation, to the torture of Christian followers, Diocletian's reforms, and Constantine's eventual conversion to monotheism, which cemented Christianity's status as the official religion of Rome. Supplemented by photos, primary document excerpts, biographies of key figures, a glossary, an annotated bibliography and an index, this volume is an ideal reference source for students and general readers alike.