It was a courier system, by roads and by sea for official use.
Related Essays:
- Who were the two greatest kings of the Persian Empire
- The significance of the Persian Wars was
- What year did the Persian Empire arise in and around Iran
- What is the war in which the Greeks defeated the invading Persian Empire
- Why did the Persians refuse to become traders
- Scene of a decisive victory of Athens over Persia
- How do you defeat the birds on Prince of Persia
- Who were the winners of the Persian wars
- Cd-key for prince of Persia two thrones
- What continent is Persia in
