Historiography of the fall of the Western Roman Empire Historiography of the fall of the Western Roman Empire The causes and mechanisms of the Fall of the Western Roman Empire are a historical theme that was introduced by historian Edward Gibbon in his 1776 book "The History of the Decline and Fall of the Roman Empire". He started an ongoing historiographical discussion about what caused the Fall of the Western Roman Empire, and the reduced power of the remaining Eastern Empire, in the 4th–5th centuries. Gibbon was not the first to speculate on why the Empire collapsed, but he was the first to give a well-researched and well-referenced account.
Historiography of the fall of the Western Roman Empire He also rejects the political infighting of the Empire as a reason, considering it was a systemic recurring factor throughout the Empire's history which, while it might have contributed to an inability to respond to the circumstances of the 5th century, it consequently cannot be blamed for them. Instead he places its origin squarely on outside military factors, starting with the Sassanids. Like Bury, he does not believe the fall was inevitable, but rather a series of events which came together to shatter the Empire. He differs from Bury, however, in placing the onset of those events far earlier in