History of Rome (Mommsen) historian of his century or of ours. His only rival in any century was Edward Gibbon, whose monumental History of the Decline and Fall of the Roman Empire complements rather than competes with Mommsen's superb description of the Roman republic." One encyclopaedic reference summarizes: "Equally great as antiquary, jurist, political and social historian, Mommsen [had] no rivals. He combined the power of minute investigation with a singular faculty for bold generalization... ." About the "History of Rome" the universal historian Arnold J. Toynbee writes, "Mommsen wrote a great book, which certainly will always be reckoned among the masterpieces of Western
Fall of the Western Roman Empire Nepos in 480. Gibbon gave a classic formulation of reasons why the Fall happened. He began an ongoing controversy by attributing a significant role to Christianity in the Western Roman Empire's fall, which is no longer accepted by modern Roman historians. However, he did give great weight to other causes of internal decline as well and to the attacks from outside the Empire. Alexander Demandt enumerated 210 different theories on why Rome fell, and new ideas have emerged since. Historians still try to analyze the reasons for loss of political control over a vast territory (and, as a subsidiary theme,