This district had from a remote antiquity been one with special pretensions.

The country was fertile, and much of it strong; the people were hardy and valiant; they were generally treated with exceptional favor by the Persian monarchs; and they seem to have had traditions which assigned them a pre-eminence among the Arian tribes at some indefinitely distant period.

We may presume that they would gladly support the bold enterprise of their new monarch; they would feel their vanity flattered by the establishment of an independent Bactria, even though it were under Greek kings; and they would energetically second him in an enterprise which gratified their pride, while it held out to them hopes of a career of conquest, with its concomitants of plunder and glory.

The settled quiet which they had enjoyed under the Achaemenide and the Seleucidae was probably not much to their taste; and they would gladly exchange so tame and dull a life for the pleasures of independence and the chances of empire.
It would seem that Antiochus, sunk in luxury at his capital, could not bring himself to make even an effort to check the spirit of rebellion, and recover his revolted subjects.

Bactria was allowed to establish itself as an independent monarchy, without having to undergo the ordeal of a bloody struggle.