Prior to the 13th century the horizons of Western Christians extended no further than the principalities of what is now European Russia and the Islamic powers of the near East. Beyond lay a world of which they had only the haziest impressions. The belief that Christian communities were to be found here was nurtured in the 12th century by the growth of the legend of Prester John; but otherwise Asia was peopled in the Western imagination by monstrous races borrowed from the works of late Antiquity. The rise of the Mongol empire, however, and the Mongol devastation of Hungary and Poland in 1241-2, brought the West into much closer contact with Inner Asia. Embassies were being exchanged with the Mongols from 1245; Italian merchants began to profit from the commercial opportunities offered by the union of much of Asia under a single power; and the newly emerging orders of preaching friars, the Franciscans and the Dominicans, who had been active in Eastern Europe and in the Islamic world sin