The next hundred years is a record of the increasing power of this confederacy, with a constant tendency to give Mexico a larger influence.[842] The two capitals, Tenochtitlan and Tezcuco, looking at each other across the lake, were uninterruptedly growing in splendor, or in what the historians call by that word,[843] with all the adjuncts of public works,—causeways, canals, aqueducts, temples, palaces and gardens, and other evidences of wealth, which perhaps these modern terms only approximately represent. Tezcuco was taken possession of by Nezahualcoyotl as his ancient inheritance, and his confederate Itzcoatl placed the crown on his head. Together they made war north and south. Xochimilco, on the lake next south of Mexico, yielded; and the people of Chalco, which was on the most southern of the string of lakes, revolted and were suppressed more than once, as opportunities offered. The confederates crossed the ridge that formed the southern bound of the Mexican valley and sacked Quauhnahuac. The Mexican ruler had in all this gained a certain ascendency in the valley coalition, when he died in 1440, and his nephew, Montezuma the soldier, and first of the name,[844] succeeded him. This prince soon had on his hands another war with Chalco, and with the aid of his confederates he finally humbled its presumptuous people. So, with or without pretence, the wars and conquests went on, if for no other reasons, to obtain prisoners for sacrifice.[845] They were diversified at times, particularly in 1449, by contests with the powers of nature, when the rising waters of the lake threatened to drown their cities, and when, one evil being cured, others in the shape of famine and plague succeeded. Sometimes in the wars the confederates over-calculated their own prowess, as when Atonaltzin of Tilantongo sent them reeling back, only, however, to make better preparations and to succeed at last. In another war to the southeast they captured, as the accounts say, over six thousand victims for the stone of sacrifice.