of warlike kings Mexico extended her domain to the shores of either ocean, and rendered the tribes therein tributary to her. During this period of foreign conquest, the Aztec kings, more energetic, ambitious, warlike, and unscrupulous than their allies, acquired a decided preponderance in the confederate councils and possessions; so that, originally but a small tribe, one of the many which had settled in the valley of Anáhuac, by its valor and success in war, by the comparatively broad extent of its domain, by the magnificence of its capital, the only aboriginal town in America rebuilt by the conquerors in anything like its pristine splendor, and especially by being the people that came directly into contact with the invaders in the desperate struggles of the conquest, the Aztecs became to Europeans, and to the whole modern world, the representatives of the American civilized peoples. Hence, in the observations of those who were personally acquainted with these people, little or no distinction is made between the many different nations of Central Mexico, all being described as Aztecs. Indeed, many of the lesser nations favored this error, being proud to claim identity with the brave and powerful people to whose valor they had been forced to succumb. While this state of things doubtless creates some confusion by failing to show clearly the slight tribal differences that existed, yet the difficulty is not a serious one, from the fact that very many of these nations were unquestionably of the same blood as the Aztecs, and that all drew what civilization they possessed from the same Nahua source. I may therefore continue to speak of the Aztecs in their representative character, including directly in this term all the nations permanently subjected to the three ruling powers in Anáhuac, due care being taken to point out such differences as may have been noticed and recorded.
To fix the limits of the Aztec Empire with any approximation to accuracy is exceedingly difficult, both by reason of conflicting statements, and because the
