Persecution of pagans in the late Roman Empire religions that we now label "paganism" was seen as the result of the religious intolerance inherent in the monotheistic Christian faith. The classic expression of this view occurs in the work of Edward Gibbon, "Decline and Fall of the Roman Empire." As historian Herbert Drake puts it, "It is difficult to overestimate the influence of Gibbon's interpretation on subsequent scholarship." Herbert Drake takes issue with the historiography of Gibbon, arguing that while persecution certainly occurred for religious reasons, that the underlying motivation was consolidation of power in the Constantinian dynasty, which was offered in the form of promoting the cult
Historiography of the fall of the Western Roman Empire catastrophic: Peter Heather, in his "The Fall of the Roman Empire" (2005), maintains the Roman imperial system with its sometimes violent imperial transitions and problematic communications notwithstanding, was in fairly good shape during the first, second, and part of the 3rd centuries AD. According to Heather, the first real indication of trouble was the emergence in Iran of the Sassanid Persian empire (226–651). As reviewed by one writer on Heather's writing, Heather goes on to state—in the tradition of Gibbon and Bury—that it took the Roman Empire about half a century to cope with the Sassanid threat, which it did