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
Campaign history of the Roman military war with Yazdegerd II was again swiftly concluded by treaty after both parties battled threats elsewhere. Many theories have been advanced in way of explanation for decline of the Roman Empire, and many dates given for its fall, from the onset of its decline in the 3rd century to the fall of Constantinople in 1453. Militarily, however, the Empire finally fell after first being overrun by various non-Roman peoples and then having its heart in Italy seized by Germanic troops in a revolt. The historicity and exact dates are uncertain, and some historians do not consider that the Empire fell