Passage: The historiography of the Byzantine Empire has shifted from a narrative of continuous decline to one of remarkable resilience and adaptation. For centuries, Enlightenment historians like Montesquieu and Gibbon viewed Byzantium as a stagnant and superstitious corruption of the classical Roman tradition. This negative perception was rooted in a preference for Western Latin culture and a dismissal of Eastern Orthodox influence. However, twentieth-century scholars began to re-evaluate the empire's sophisticated diplomacy, bureaucratic endurance, and role in preserving Greek and Roman learning. They argue that Byzantium was not a fading relic but a dynamic shield that protected Europe from numerous eastern invasions for over a millennium. These revisionists highlight the administrative reforms of the theme system, which allowed the empire to maintain a professional army through localized military districts. Furthermore, they point to the empire's cultural influence on the Renaissance, as Byzantine scholars fleeing the fall of Constantinople in 1453 brought crucial manuscripts and intellectual traditions to Italy.