Because the road did not follow the shortest nor the easiest route between the important cities of the Persian Empire, archeologists believe the westernmost sections of the road may have originally been built by the Assyrian kings, as the road plunges through the heart of their old empire.
Eftersom vägen varken följde den kortaste eller den lättaste vägen mellan de viktiga städerna i det persiska imperiet tror arkeologer att dess västligaste del byggdes av akemenidiska kungar, eftersom vägen gick igenom hjärtat av deras gamla imperium.