Note 1 — VOLUME XI

That there is an ultimate community of culture and thought between the Andean and Mexican regions can hardly be doubted. Furthermore, it is not merely primitive, but belongs to an era of some advancement in the arts. Spinden (Ancient Civilizations of Mexico and Central America [New York, 1917], and elsewhere) has termed the early stage the "archaic period," and he plausibly argues for its Mexican origination and southward migration. But at any rate since near the beginning of the Christian Era the civilizations of the two regions have developed in virtual independence.