The language of the land in the Parthian empire was the native language of Iran. There is no trace pointing to any foreign language having ever been in public use under the Arsacids.

If it was in the interest of Rome to extend her conquests towards the East, and to enter on the inheritance of Alexander the Great there in all its extent, the circumstances were never more favourable for doing so than in the year 716.

Under the Julian and Claudian emperors, the Parthians seem to have been the leading power at the mouth of the Indus.

Theodor Mommsen Quotes