Following out this theory we will have to place the taking of Merida by the Spaniards (1541) in the sixth year of the IXth Ahau, instead of the first of the XIth. As Landa went to Yucatan about the year 1549, we are not warranted in supposing that he made an error of thirty years in reference to an event that occurred but a few years before his arrival. It is apparent from these facts that, assuming, as Perez does, that the year 1392 was the year 7 Cauac, and the first of an Ahau, conflicts with every other date left on record.
I think we may therefore take for granted that there was some error in the calculation by which this author, or those from whom he quotes, obtained this date. As this calculation antedates the death of Ajpula just 43 years, let us add that number to 1392: This gives us 1435. If we turn now to Table XVII, made according to my theory, we find that 7 Cauac
