Note 30 — Chapter I · ANCIENT MEXICO—CLIMATE AND PRODUCTS—PRIMITIVE RACES—AZTEC EMPIRE

[Some recent writers have contended that Mexico must have been peopled originally by migrations from the South. Aztec names and communities, and traces of Toltec settlements long anterior to the occupation of Anahuac by the same people, are found in several parts of Central America. The most primitive traditions, as well as the remains of the earliest civilization, belong also to the same quarter. This latter fact, however, is considered by Orozco y Berra as itself an evidence of the migrations having been from the North, the first comers having been naturally attracted southward by a warmer climate and more fertile soil, or pushed onward in this direction by successive invasions from behind. Contradictory inferences have in like manner been drawn from the existence of Aztec remains and settlements in New Mexico and Arizona. All that can be said with confidence is that neither of the opposing theories rests on a secure and sufficient basis.—K.]