Respecting the ensuing period of Nahua greatness in Central America nothing is recorded save that it ended in revolt, disaster, and a general scattering of the tribes at some period probably preceding the fifth century. The national names that appear in connection with the closing struggles are the Toltecs, Chichimecs, Quichés, Nonohualcas, and Tutul Xius, none of them apparently identical with the Xibalbans. Indeed there seems to be very little reason to suppose that this final struggle was a renewal of the old contest between the followers of Votan and Quetzalcoatl, although Brasseur de Bourbourg seems inclined to take that view of it; but a series of civil wars between rival Nahua tribes, or tribes that had accepted Nahua government, seems rather to have been the agency that brought about their final forced migrations. Of the subsequent history of the nations that finally remained masters of their central home nothing is known; it may be conjectured that the Tzendales and Chiapanecs found by the Spaniards in that part of the country were their somewhat degenerate descendants. Of the tribes that were successively defeated and forced to seek new homes, those that spoke the Maya dialects, although considering themselves Nahuas, seem to have settled chiefly in the south and east.[III-96] Some of them afterwards rose to great prominence in Guatemala and Yucatan, and their annals will form the subject of future chapters. The Nahua-speaking tribes as a rule established themselves in Anáhuac and in the western and north-western parts of Mexico, as their companion tribes, the Olmecs and Xicalancas, had already established themselves in the south-eastern region. The valley of Mexico and the country immediately adjoining soon became the centre of the Nahuas in Mexico; its history or that of the nations that successively rose to power there, will be continued in the following chapter.
From this epoch of separation in Chiapas the Mayas of the south and the Nahuas of the north were practically distinct peoples, as they have been considered in the preceding volumes of this work. At the date of separation all were in a certain sense Nahua nations, and the Nahuas proper had doubtless been considerably affected by the ancient peoples whom they had overcome or converted, and with whom they had so long associated:--hence the analogies that appear between the institutions and monuments of the north and south. Of the contrasts that also appear, some date back to original differences between the two rival powers; others result from development and progress in different paths, during the ten centuries that elapsed before the coming of the Spaniards.