Fall of the Western Roman Empire

The Fall of the Western Roman Empire refers to the disintegration of centralized Roman political authority across the western provinces between roughly the late fourth and late fifth centuries CE. The conventional terminal date is 476 CE, when the Germanic commander Odoacer deposed the teenage emperor Romulus Augustulus and sent the imperial regalia to Emperor Zeno in Constantinople, declining to appoint a new western emperor. This date was popularized by Edward Gibbon's The History of the Decline and Fall of the Roman Empire (1776–1789), though modern historians treat it as a symbolic rather than decisive event.

Key episodes in the longer process include the Battle of Adrianople (378 CE), where the Visigoths defeated and killed Emperor Valens; the permanent division of the empire after Theodosius I's death in 395 CE; the sack of Rome by Alaric's Visigoths in 410 CE; the Vandal crossing into North Africa and capture of Carthage (439 CE); the sack of Rome by the Vandals in 455 CE; and the assassination of the western general Aetius in 454 CE.

Causes debated by historians include:

• External pressure from Goths, Vandals, Huns, and other peoples migrating across the Rhine and Danube frontiers
• Fiscal and military overstretch, with shrinking tax bases unable to support the army
• Political instability, including frequent civil wars and short-reigning emperors
• Structural transformation rather than collapse — a view associated with Peter Brown's "Late Antiquity" framework and Walter Goffart's work on accommodation of barbarian peoples
• Catastrophic invasion, defended by Bryan Ward-Perkins in The Fall of Rome and the End of Civilization (2005)

The Eastern Roman (Byzantine) Empire continued from Constantinople until 1453, and Roman legal, linguistic, and ecclesiastical institutions persisted in the West through the Catholic Church and successor kingdoms such as the Ostrogothic, Frankish, and Visigothic realms.