36 , proves that a trade-route from Phrygia down the Maeander to Miletus was used in the 6th century.
There were indeed vassal states on every hand, but the actual possessions of the kingsthe provinces governed by their satrapsconsisted of a rather narrow strip of land, stretching from the Euphrates and north Babylonia through southern Media and Parthia as far as Arachosia (north-west Afghanistan), and following the course of the great trade-route which from time immemorial had carried the traffic between the west of Asia and India.
It was traversed by an important trade-route from Elath (the junction for routes to Egypt and Arabia) which ran northwards by Mean and Moab; but cross-routes turned from Ma`an and Petra to Gaza or up the Ghor (south end of Dead Sea) to Hebron and Jerusalem.'
The old trade-route from Cappadocia to Sinope, which had passed out of use centuries before the time of Strabo (pp. 540, 546), fixes this centre with precision.
Its importance is largely due to its situation on the great trade-route from Kaisarieh (Caesarea) by Yuzgat and Marzivan to Samsun on the Black Sea.