Darius the Great
Also known as: Darius I of Persia · Dareios · Dārayavahuš · Darayavaush · Dāryūsh · Dārayavauš · Darius the Great · Dāriyūsh
Darius I, commonly known as Darius the Great, was the third King of Kings of the Achaemenid Empire, reigning from 522 BCE until his death in 486 BCE.
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reorganized and expanded the road network
Darius I is credited with the major reorganization and improvement of the Royal Road to ensure efficient communication and troop movement.