Studying the plate carefully and also our scheme of it—[Fig. 6]—we observe that Cipactli is found at the right base of the red loop, Miquitzli at the right base of the yellow loop (the center of the plate being considered the point of observation), Ozomatli at the right base of the blue loop, and Cozcaquauhtli at the right base of the green loop (but in this case it can be determined only by the order, not by the figure). These are the four days, as is well known, on which the Mexican years begin.

I take for granted, therefore, that the year Acatl or Cane applies to the top or red loop. This, I am aware, necessitates commencing the year with 1 Cipactli, thus apparently contradicting the statement of Gemelli that the Tochtli year began with Cipactli. But it must be borne in mind that this author expressly proceeds upon the theory that the counting of the years began in the south with Tochtli. If the count began with 1 Cane, as both the expounder of the Vatican Codex and Duran affirm, Cipactli would be the first day of this year, as it appears evident from the day lists in the Codices that the first year of all the systems commenced with this day. That Acatl was assigned to the east is affirmed by all authorities save Boturini, and this agrees very well with the plate now under consideration. There is one statement made by the expounder of the Vatican Codex which not only enables us to understand his confused explanation, but indicates clearly the kind of painting he had in view, and tends to confirm the opinion here advanced.

He says that “to signify the first day of the world they painted a figure like the moon,” &c. Let us guess this to be Cipactli, as nothing of the kind named is to be found. The next figure was a cane; their third figure was a serpent; their fourth, earthquake (Ollin); their fifth, water. “These five signs they placed in the upper part, which they called Tlacpac, that is to say, the east.” That he does not mean that these days followed each other consecutively in counting time must be admitted. That he saw them placed in this order in some painting may be inferred with positive certainty. It is also apparent that they are the five days of the first column in the arrangement of the Mexican days shown in [Table No. XI], though not in the order there given, which is as follows:

Dragon, Snake, Water, Cane, Movement.

The order in which they are placed by this author is this:

Dragon? Cane, Serpent, Movement, Water.

Which, by referring to page 35, we find to be precisely the same as that of the five days wedged in between the loops in the upper left-hand corner of Plate 44 of the Fejervary Codex; thus agreeing in order and position with this author’s statement. Duran, as we have seen, also places the east at the top. The same thing is true in regard to the calendar wheel from the book of Chilan Balam hereafter shown.

Accordingly, I conclude that the top of this plate—the red loop—will be east; the left-hand or yellow loop, north; the bottom or blue loop, west, and the right-hand or green loop, south. This also brings the year Acatl to the east, Tecpatl to the north, Calli to the west, and Tochtli to the south. As the commencement was afterwards changed to Tochtli, as we are informed by Chavero (and as appears to be the case in the Borgian Codex), it would begin at the south, just as stated by Gemelli and other early writers, who probably refer to the system in vogue at the time of the conquest.

Shultz-Sellack alludes to this plate in his article heretofore quoted, but considers the red loop the south, notwithstanding his assignment of red among the Aztecs to the east. He was led to this conclusion, I presume, by two facts: First, the close proximity of the fourth column of days to this red loop, and second, the figure of the sun at the foot of the tree or cross, the sun of the first creation having made its appearance, according to Mexican mythology, in the south. But it is far more likely that the artist intended here to be true to known phenomena rather than to a tradition which was in contradiction to them. The presence of this figure above the horizon is, I think, one of the strongest possible proofs that this part of the plate denotes the east.

According to Gemelli[44] the south was denoted by a “blue field,” and the symbol Tochtli; east by a red field, and the symbol Acatl; the north by a “yellow field,” and the symbol Tecpatl, and the west by a “green field,” and the symbol Calli. In this plate we have precisely the colors he mentions, red in the east, and yellow in the north, but green is at the south, and blue at the west.