KnowraRoyal RoadLinked fromLinked fromThe 8 pages that link to Royal Road, each with the reason it gives.All 8Broader topic 3Related 4Compared with 1Achaemenid EmpireBroader topic: The road helped royal officials and messages cross the empire quickly.Iranian PlateauBroader topic: It crossed the plateau to support imperial communication and movement.Persian EmpireBroader topic: Its stations and couriers helped the Achaemenid administration communicate across long distances.