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132 religious cycle terminated and began with the civil cycle described above. A larger cycle of 2340 days was further produced by the introduction of a series of hieroglyphics, nine in number, and called the Lords of the Night; eight of which, with the addition of one of the smaller cycles of two hundred and sixty, would amount to the civil cycle of fifty-two years.

From whatever source the ancient people of these countries derived their correct knowledge of the revolutions of the sun and moon, and their peculiar astronomical system, the analogies which have been detected between them and with those of Asia are most conclusive as to the fact of their having had one common origin.

The week of five days, the subdivision of the larger cycles, the nomenclature of the years, the regulation of festivals according to half lunations, the method of intercalation, the proportion between the number of years of the cycle and the intercalary period—all lead one to believe that the Mexican astronomical system, as well as those of the Chaldeans, Persians, and Hindoos, was based upon the principles of antediluvian science, the knowledge of which was common to the descendants of Noah, in the centuries preceding the confusion of tongues and general dispersion of the human race.

But to return for an instant to De Gama. We learn from him that the monstrous goddess was discovered in consequence of an excavation made in the Plaza Mayor, on the 13th of August, 1790, exactly, to a day, two hundred and sixty- nine years after the capture of the city by Cortez. The head lay at the depth of only one vara and a third below the surface, and the foot but one single vara or less. It was the 25th of September before it was finally extricated. On the 17th of December following, the Sacrificial Stone was found, at the depth of but a foot and a half below the pavement. Other relics were discovered subsequently. Some of the largest were instantly buried again, and among the number, those named. Others were destroyed; and no doubt seems to exist, but that at this very hour, at a very small