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Primary sourceBook1734

Considerations on the Causes of the Greatness of the Romans and their Decline

Montesquieu · 1734

Montesquieu's 1734 history arguing that general moral causes, not chance, explain Rome's rise and fall.

A history written by him that bridges his early satire and his later major work on political theory.

Title page of a French book: 'Montesquieu. Considérations sur les causes de la grandeur des Romains et de leur décadence', with an introduction and notes by L. Petit de Julleville, huitième édition, published in Paris by Librairie Ch. Delagrave.
Montesquieu, Considérations sur les causes de la grandeur des Romains et de leur décadence, first published 1734.

About this source

What it is

This book, first published anonymously in 1734, was written by Montesquieu and traces Roman history from the founding of the Republic to the fall of Constantinople. A revised edition appeared in France in 1748.

Why it matters

Montesquieu argues that Rome's wealth and military success actually weakened the civic virtue of its citizens, and that moral decline, not single events or leaders, explains its fall. The work was an acknowledged inspiration for Edward Gibbon's later history of Rome's decline, and shows how Montesquieu's ideas about causes and patterns in history fed into his later political theory.

Look closer

  • Why might Montesquieu look for general causes of decline rather than blaming specific rulers or events?
  • How might comparing Rome to its enemies, like Carthage and Greece, change the way readers see Roman history?
  • What does this book reveal about Montesquieu's own concerns in 18th-century France?

This book is part of the curated material that grounds the AI version of Baron de Montesquieu on Humy.ai — when students ask about related events, the AI can quote it and cite it.

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