According to Strutt, the popular sports and pastimes prevalent at the close of the Saxon era were not subjected to any material change by the coming of the Normans. But William and his immediate successors restricted the privileges of the chase, and imposed great penalties on those who presumed to destroy the game in the royal forests without a proper license. The wild boar and the wolf still afforded sport at the Christmas season, and there was an abundance of smaller game. Leaping, running, wrestling, the casting of darts, and other pastimes which required bodily strength and agility were also practised, and when the frost set in various games were engaged in upon the ice. It is not known at what time skating made its first appearance in England, but we find some traces of such an exercise in the thirteenth century, at which period, according to Fitzstephen, it was customary in the winter, when the ice would bear them, for the young citizens of London to fasten the leg bones of animals under the soles of their feet by tying them round their ankles; and then, taking a pole shod with iron into their hands, they pushed themselves forward by striking it against the ice, and moved with celerity equal, says the author, to a bird flying through the air, or an arrow from a cross-bow; but some allowance, we presume, must be made for the poetical figure: he then adds, "At times, two of them thus furnished agree to start opposite one to another, at a great distance; they meet, elevate their poles, attack, and strike each other, when one or both of them fall, and not without some bodily hurt; and, even after their fall, are carried a great distance from each other, by the rapidity of the motion, and whatever part of the head comes upon the ice it is sure to be laid bare."