A fuller account of the birth of the historical sun runs as follows. All the gods were assembled at Teotihuacan, waiting for the appearance of the planet and performing penance. A great fire was prepared, into which, after some hesitation, the syphilitic god Nanauatzin (a manifestation of the dog-headed sun- and lightning-deity, the patron of twins, Xolotl) leaped, reappearing later as the sun. Fired by his example, Tecociztecatl leaped after him, but he failed to spring into the glowing heart of the fire and he reappeared as the moon, the surface of which is clouded with the black ashes of the pyre. A variant myth makes Quetzalcoatl cast his son into the fire to become the sun, while Tlaloc throws his son in later and he becomes the moon. The sun once created, some nourishment had to be found for him, and various gods sacrificed themselves so that he might obtain sustenance from their blood and hearts. A variant legend narrates the special creation of the Centzon Mimizcoa who by fighting might provide the sun with the necessary blood-offerings. The connection of the sun with the war-gods is therefore very close, for war in Mexico was in the main of a ceremonial nature, undertaken with the express purpose of obtaining prisoners for sacrifice, and not necessarily with the intention of inflicting mortal hurt upon the foe. It is in this sense that in a ceremonial invocation to Uitzilopochtli, the warrior-god, the deity is made to exclaim “Through me has the sun risen.” From this point of view the sun is closely connected with the souls of warriors perishing in war or on the sacrificial stone, who escorted the orb from the eastern horizon to the zenith; and also with the souls of women dying in childbirth, the female counterparts of the warriors, who accompanied it from the zenith to its setting. These female souls were deified under the name of Ciuapipiltin or Ciuateteo, and were supposed to descend to the earth on certain dates and inflict maladies on children (Fig. 3, _d_). They are included under the general term of Tzitzimimé, lightning-demons, of whom Itzpapalotl was one, and whose advent to destroy the world was greatly feared during eclipses and at the end of each fifty-two-year period. Associated with the sun as escort was Xolotl, the dog-headed god of twins and monstrosities, and, in invocations, the earth-god Tlaltecutli, who, like him, was supposed to be nourished with the blood of warriors killed in fight and sacrifice. The creation of the moon, Meztli, in the person of Tecociztecatl has already been mentioned, but other deities were connected with it, especially those associated with vegetation. The waxing and waning of the moon was supposed to typify the process of nature, and the moon was supposed to exercise an influence over vegetable growth; it is even possible that the phases of this satellite may have possessed a calendrical significance before the invention of the solar year.