As for its origin, we may safely say that heraldry, in its essence, began when man first used natural forms to symbolize, and ascribe to himself, those qualities--strength, courage, cunning--which he had full cause to recognize in the beasts with whom he struggled for existence; when he reproduced, as well as he could, their ferocious aspect, to strike terror into his human enemies while satisfying his own warlike vanity, and so adopted them as badges or even as totems. In Europe heraldry began to be systematized (as we know it) somewhere about the eleventh century, and it flourished exceedingly until about the middle of the sixteenth century, the period thus indicated being that of its greatest strength and beauty. The development of defensive armour dictated the placing on it of the badges that had for long been used in other ways, so that, being depicted on the shield, they became the arms, and became the crest when displayed on the head-piece. The device worked on the garment which covered the body armour made it a veritable _coat of arms_, and this term, as well as that of coat armour, came in time to be also applied to the similar armorials of the shield. The Crusades, in their aggregation of troops of various nationalities, helped to extend, in showing the necessity for, a regular system of heraldry as a means of distinguishing one party from another, and the feudal system itself with its numerous groups, each under its knightly or noble head in ever-extending subordination, conduced to the same end. The Tournaments which played so brilliant a part in the splendours of the Middle Ages also afforded fresh and greatest scope for heraldic magnificence. Being restricted for the most part to competitors of noble birth, many of whom were attracted from distant places, they afforded opportunity for observation and comparison of the various bearings. They naturally suggested the inclusion of foreign as well as native armorials in the heraldic MS. of the times, as we find them depicted in the Rolls of Arms. The necessity for well-ordered arrangement soon made itself felt, and thence was evolved systematic heraldry as it now exists. The rules thus originated, being based on the ever-present difficulties which arose in the actual use of coat armour, were admirable for their purpose, for they were devised with a common-sense regard for the conditions under which they were to be applied, were at first simple and therefore easily understood. The manner in which the arms were displayed was the most conspicuous that was possible, every suitable space that offered itself being employed to bear them in one form or another. Thus in time they appeared on the shield, helmet and surcoat, and also on the ailettes, those flat pieces of steel which were used to still further deflect a blow which had slid from the helmet and might otherwise have injured the shoulder.