The reader who has accompanied us from the beginning of this volume and perused the history of the Spanish conquest, has doubtless become somewhat familiar with the great square of ancient Tenochtitlan, its _Teocalli_, or pyramidal temple, and the bloody rites that were celebrated upon it, by the Aztec priests and princes. It served as a place of sacrifice, not only for the Indian victims of war, but streamed with the blood of the unfortunate Spaniards who fell into the power of the Mexicans when Cortéz was driven from the city. This _Teocalli_ is said to have been completed in the year 1486, during the reign of the eighth sovereign of Tenochtitlan or Mexico, and occupied that portion of the present city upon which the cathedral stands and which is occupied by some of the adjacent streets and buildings. Its massive proportions and great extent may be estimated from the restoration of this edifice, which we have attempted to form from the best authorities, and have presented in a plate in the preceding portion of this work. * * * * * The Mexican theology indulged in two kinds of sacrifice, one of which was an ordinary offering of a common victim, while the other, or gladiatorial sacrifice, was only used for captives of extraordinary courage and bravery. When we recollect the fact that the Aztec tribe was an intruder into the valley of Anahuac, and that it laid the foundations of its capital in the midst of enemies, we are not surprised that so hardy a race, from the northern hive, was both warlike in its habits and sanguinary in its religion. With a beautiful land around it on all sides,--level, fruitful, but incapable of easy defence,--it was forced to quit the solid earth and to build its stronghold in the waters of the lake. We can conceive no other reason for the selection of such a site. The eagle may have been seen on a rock amid the water devouring the serpent; but we do not believe that this emblem of the will of heaven, in guiding the wanderers to their refuge in the lake of Tezcoco, was known to more than the leaders of the tribe until it became necessary to control the band by the interposition of a miracle. Something more was needed than mere argument, to plant a capital in the water, and, thus, we doubt not, that the singular omen, in which the modern arms of Mexico have originated, was contrived or invented by the priests or chiefs of the unsettled Aztecs.