Commerce was the lifeblood of the empire. The Persians constructed the , a 2,500-kilometer highway connecting Susa to Sardis, which allowed for rapid communication and trade.
: Revenue was generated through agriculture, tribute from satrapies, and trade tariffs. Download persia rar
: They established the world's first public postal system using mounted couriers to reach remote areas in just 15 days. R eligious Beliefs: Zoroastrianism Commerce was the lifeblood of the empire