important part of their culture, until at last they were overshadowed by another oriental reaction.
When the Parthian feudal system was at its height, its military power was immense. In addition to mere numbers, the Parthians possessed the compound bow and complete scale armor for man and horse, arms of offense and defense against which the Roman legions had never before been matched. In 53 b.c. the consul Crassus and thirty thousand of his men fell under a hail of Parthian arrows, and the succeeding years saw raids into the rich territory about the pleasure center of Antioch. The armies which humbled the "invincible" legions were almost entirely composed of cavalry, both light- and heavy-armed. Because of the expense of maintaining horses and armor the heavy-armed was recruited from the nobility, who were also expected to supply and equip some light cavalry, not armored, but furnished with the bow as a weapon of offense.
As a result of their exploitation of the land, the success of their commercial alliances, and the profits of the booty from raids into Roman territory, the nobility gained tremendously in power and importance. On the other hand the royal family, the Arsacidae, in whom the succession to the throne remained, was torn asunder and weakened by intrigue, murder, and quarrels between members of the dynasty. The result was inevitable, just as in Europe. The feudal lords no longer responded to the call to arms, no
