The object was to keep themselves and their chargers fit, their eyesight true, and muscles toughened for the further struggles that all knew must follow. But during those intervals of peace, the rival knights, Christian and Moslem, met in keen competition with lance and sword on the enclosed arena of the bull-ring. The conclusion of a truce was frequently celebrated by holding a joint _fiesta de toros_. No trace, however, exists in Arab writings to show that these people possessed any innate love of bull-fighting as a sport, or ever practised it save only as an accessory to the art of war. No other people of ancient race have had exhibitions of this kind--that is, where the skill of man was invoked to incite a beast to attack in certain desired modes; while the performer escaped the onset, and finally slew his adversary, by preconceived forms of defence governed by set rules--a spectacle wherein the assembled crowd could, each according to his light, estimate both the skill of the man and the fighting quality of the beast. That the blood of many a gladiator dyed the Roman arena at the horns of bulls is certain: but no artistic embellishments of attack or defence added to the joy of the Roman holiday. The mere mechanical instinct of self-preservation may inadvertently have suggested to individual combatants certain combinations in the conflict that in later days have been utilised by modern matadors; but it seems hardly possible to suppose that Roman gladiators saved themselves by methods of prescribed art. Contemporary records, together with the scenes depicted on coinage, represent rather a mere massacre of men by brute force; and such cannot bear any relation to the conditions that govern the national _fiesta_ of Spain to-day. The actual origin in Spain of the _Corrida de Toros_ must thus be traced to the Spanish Arabs, who, to exercise themselves and their steeds during intermittent periods of peace, adopted this dangerous pastime with the view of fortifying and invigorating personal valour, so necessary in times of constant strife. The Arab's spear and charger were opposed to the wild bull of the Spanish plain under conditions many of which are analogous to these in vogue to-day. In those earlier ages it was permitted to an unhorsed cavalier to accept protection from the horns of his enemy at the hands of his personal retainers, who not infrequently sacrificed their own lives in devotion to their chief. At this period (during the thirteenth and fourteenth centuries) the knight who, lance in hand, had been hurled from the saddle might draw his sword and kill the bull, his vassals being allowed to assist in placing the animal (by deft display of coloured cloaks) in a position to facilitate the death-stroke. Here, doubtless, originated the art of "playing" the bull, and incidentally sprang the professional bull-fighter.