Why did the Western Roman Empire fall?

The fall of the Western Roman Empire is one of history’s most enduring puzzles. It was not a single catastrophe but a slow‑motion collapse driven by intertwined forces — political decay, economic strain, and relentless pressure from external enemies. Even as Rome’s eternal image dazzled its citizens, the foundations were crumbling.

• Decades of civil war eroded the army’s loyalty to the state, turning legions into private factions.
• Runaway inflation and a crushing tax burden impoverished the once‑proud Roman middle class.
• The limes (frontier defences) became porous, allowing entire tribes to settle inside the empire.
• In 476 CE, the last western emperor was deposed — a symbolic end to a process already centuries in the making.

The “fall” was not the annihilation of a civilisation but its transformation. Roads still crossed the landscape, Latin survived in the Church, and the memory of Rome haunted every king who dreamed of a new empire.