Achaemenid Royal Road and Imperial Communication Network (6th–4th centuries BCE)

1. Cyrus II founds the Achaemenid Empire

   Jan 1, 550 BCELabels: Cyrus II, Achaemenid Empire

   • Britannica

2. Achaemenids take Lydia and Sardis

   Jan 1, 546 BCELabels: Lydia, Sardis

   • Britannica

3. Darius I establishes an empire-wide administration

   Jan 1, 522 BCELabels: Darius I, Satrapy System

   • Britannica

4. Persepolis Fortification archive documents state logistics

   Jan 1, 509 BCELabels: Persepolis Tablets, State Logistics

   • Encyclopaedia Iranica
   • ISAC

5. Royal Road system developed under Darius I

   Jan 1, 500 BCELabels: Royal Road, Darius I

   • Britannica
   • Britannica

6. Herodotus describes the 111 “royal stations”

   Jan 1, 440 BCELabels: Herodotus, Royal Stations

   • IranChamber
   • Britannica

7. Angarium relay couriers traverse the road rapidly

   Jan 1, 440 BCELabels: Angarium, Relay Couriers

   • Britannica
   • IranChamber

8. Alexander begins conquest using Persian road infrastructure

   Jan 1, 334 BCELabels: Alexander III, Persian Roads

   • Britannica
   • Britannica

9. Alexander captures Susa, a key eastern nexus

   Dec 1, 331 BCELabels: Alexander III, Susa

   • Britannica
   • Britannica

10. Achaemenid Empire ends; network persists under successors

    Jan 1, 330 BCELabels: Achaemenid Empire, Hellenistic Successors

    • Britannica
    • Britannica

11. Persepolis Fortification Tablets discovered at Persepolis

    Jan 1, 1933Labels: Persepolis, Fortification Tablets

    • Encyclopaedia Iranica

12. Hallock publishes key edition of Fortification texts

    Jan 1, 1969Labels: Richard T, Fortification Texts

    • ISAC