Historiography of the fall of the Western Roman Empire Roman civilisation which under-girded the Empire. According to this school, drawing its basic premise from the Pirenne thesis, the Roman world underwent a gradual (though often violent) series of transformations, morphing into the medieval world. The historians belonging to this school often prefer to speak of Late Antiquity instead of the Fall of the Roman Empire. In "The History of the Decline and Fall of the Roman Empire" (1776–88), Edward Gibbon famously placed the blame on a loss of civic virtue among the Roman citizens. They gradually entrusted the role of defending the Empire to barbarian mercenaries who eventually turned
Considerations on the Causes of the Greatness of the Romans and their Decline Considerations on the Causes of the Greatness of the Romans and their Decline Considerations on the Causes of the Greatness of the Romans and their Decline (French: "Considérations sur les causes de la grandeur des Romains et de leur décadence") is an 18th-century book written by French political philosopher Montesquieu. First published in 1734, it is widely considered by scholars to be among Montesquieu's best known works and was an inspiration to Gibbon's more extensive "The History of the Decline and Fall of the Roman Empire". In 1734, the book was first published anonymously as an octavo by Jacques Desbordes