d for the roofs of dwellings.
Moreover, we are told repeatedly that the Spaniards employed "Mexican
masons," and found them "very expert" in the arts of building and
plastering. There is no good reason to doubt that the civilized
condition of the country, when the Spaniards found it, was superior to
what it has been at any time since the Conquest.

WHO WERE THE AZTECS?

The Mexicans, or Aztecs, subjugated by Cortez, were themselves invaders,
whose extended dominion was probably less than two hundred and fifty
years old, although they had been much longer in the Valley of Mexico.
There were important portions of the country, especially at the south,
to which their rule had not been extended. In several districts besides
those of the Mayas and the Quiches the natives still maintained
independent governments. The Aztec conquest of the central region,
between the Gulf of Mexico and the Pacific, was completed only a few
years previous to the arrival of the Spaniards, and the conquest of this
region had not been fully secured at some points, as appeared in the
readiness of the Tlascalans and others to act in alliance with Cortez.
But the Aztecs did not come from abroad. They belonged in the country,
and seem to have been originally an obscure and somewhat rude branch of
the native race.

It is very probable that the Colhuas and Nahuas or Toltecs of the old
books and traditions, together with the Aztecs, were all substantially
the same people. They established in the country three distinct family
groups of language, it is said, but the actual significance of this
difference in speech has not been clearly determined. These unlike
groups of language have not been sufficiently analyzed and studied to
justify us in assuming that they did not all come from the same original
source, or that there is a more radical difference between them than
between the Sclavonic, Teutonic, and Scandinavian groups in Europe.
These ancient Americans were distinct from each other at the time of the
Conquest, but not so distinct as to show much difference in their
religious ideas, their mythology, their ceremonies of worship, their
methods of building, or in the general character of their civilization.

If the Toltecs and our Mound-Builders were the same people, they
probably went from Mexico and Central America to the Valley of the
Mississippi at a very remote period, as Colhuan colonies, and after a
long residence there returned so much change