Their worship must have been a costly one, as the most majestic temples were reared, and an army of priests was supported. One single temple in the metropolis had five thousand priests attached to its service. The whole business of youthful instruction was confided to the priests. They received confession, and possessed the power of absolution. The temples were generally pyramidal structures of enormous magnitude. Upon the broad area of their summits an altar was erected, where human victims, usually prisoners taken in war, were offered in sacrifice. These awful ceremonies were conducted with the most imposing pomp of music, banners, and military and ecclesiastical processions. The victim offered in sacrifice was bound immovably to the stone altar. The officiating priest, with a sharp instrument constructed of flint-like lava, cut open his breast, and tore out the warm and palpitating heart. This bloody sacrifice was presented in devout offering to the god. At times, in the case of prisoners taken in war, the most horrid tortures were practiced before the bloody rite was terminated. When the gods seemed to frown, in dearth, or pestilence, or famine, large numbers of children were frequently offered in sacrifice. Thus the temples of Mexico were ever clotted with blood. Still more revolting is the well-authenticated fact that the body of the wretched victim thus sacrificed was often served up as a banquet, and was eaten with every accompaniment of festive rejoicing. It is estimated that from thirty to fifty thousand thus perished every year upon the altars of ancient Mexico. One of the great objects of their wars was to obtain victims for their gods. The population of this vast empire is not known. It must have consisted, however, of several millions. The city of Mexico, situated on islands in the bosom of a lake in the centre of a spacious and magnificent valley of the interior, about two hundred miles from the coast, was the metropolis of the realm. Montezuma was king--an aristocratic king, surrounded by nobles, upon whom he conferred all the honors and emoluments of the state. His palace was very magnificent. He was served from plates and goblets of silver and gold. Six hundred feudatory nobles composed his daily retinue, paying him the most obsequious homage, and expecting the same from those beneath themselves. Montezuma claimed to be lord of the whole world, and exacted tribute from all whom his arm could reach. His triumphant legions had invaded and subjugated many adjacent states, as this _Roman empire_ of the New World extended in all directions its powerful sway. It will thus be seen that the kingdom of Mexico, in point of civilization, was about on an equality with the Chinese empire of the present day. Its inhabitants were very decidedly elevated above the wandering hordes of North America.