Achaemenid Persian Empire courier relay network

Mounted couriers reached the Persian Empire’s farthest regions

15 days

The Achaemenid Persian Empire linked distant regions through a relay network of mounted couriers. They could reach its most distant areas in fifteen days. Routes included the 2,500-kilometre Royal Road between Susa and Sardis.

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Achaemenid Persian Empire courier relay network

Mounted couriers reached the Persian Empire’s farthest regions

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