What is usually accepted as the earliest authenticated instance of a regular crest is that afforded by the Great Seal of King Richard I. of England, which shows over the helmet a lion passant painted upon the fan-shaped ornament which surmounts the helmet. If one accepts--as most people nowadays are inclined to do--the Darwinian theory of evolution, the presumption is that the development of the human being, through various intermediate links including the ape, can be traced back to those cell-like formations which are the most "original" types of life which are known to us. At the same time one is hardly disposed to assert that some antediluvian jellyfish away back in past ages was the first human being. By a similar, but naturally more restricted argument, one cannot accept these paintings upon helmets, nor possibly can one accept paintings upon the fan-like ornaments which surmounted the helmet, as examples of crests. The rudiments and origin of crests doubtless they were. Crests they were not. We must go back, once again, to the bed-rock of the peacock-popinjay vanity ingrained in human nature. The same impulse which nowadays leads to the decoration of the helmets of the Life Guards with horsehair plumes and regimental badges, the cocked hats of field-marshals and other officers with waving plumes, the képis of commissionaires, and the smasher hats of Colonial irregulars with cocks' feathers, the hat of the poacher and gamekeeper with a pheasant's feather, led unquestionably to the "decoration" of the helmets of the armoured knights of old. The matter was just a combination of decoration and vanity. At first (Fig. 569) they frequently painted their helmets, and as with the gradual evolution and crystallisation of armory a certain form of decoration (the device upon his shield) became identified with a certain person, that particular device was used for the decoration of the helmet and painted thereupon.