The Twenty-Seven Kilometre Dry-Stone Wall the French Built Across the Provençal Hills to Contain a Single City's Plague
The Mur de la peste was a dry-stone wall approximately 27 km long, with guard posts at 100-metre intervals, built across the limestone garrigue of the Comtat Venaissin between September 1720 and August 1721. It enforced the cordon sanitaire that kept the Marseille plague from spreading north into the French interior.
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