We are now passing the borders of that famous Indian republic, of the high table-land, which shut out despotism by a lofty wall,[16] and was so completely isolated in the times of Montezuma that its people could obtain no foreign products, not even cotton or salt;[17] whose food was the maize which they cultivated, and the game which they caught upon the snow-capped mountains; whose clothing was made from the maguey, and from skins of animals taken in the chase; a people whose government was a council of elders, which was presided over by an hereditary chief; whose political institutions have been the study and admiration of the learned of many lands. That is, in plain English, they were an ordinary tribe of North American savages, obtaining their living, as other Indians did then and do now, by the cultivation of Indian corn and hunting, having the same crude form of government that is common to all the savage tribes of North America. They gloried in their savage notions of independence, and submitted only to the merest shadow of authority. They had not yet reached that point of social organization at which the loose government of savages gives way to the despotism of the next stage of advancement, which we shall call _barbarism_. The difference between the Tlascalans and the Aztecs was the same difference that exists between the North American savages, who live in underground wigwams,[18] and the barbarous tribes of the interior of Africa, that live in cities of mud huts above the ground, and who yield a slavish obedience to a half-naked emperor, who sits or squats upon an ox-hide in a mud palace, exercising the power of life and death, according to his momentary caprice, upon thousands of trembling slaves. The concentrated power and wealth of a whole tribe is in single hands, and is made available for conquest and for the sensual enjoyment of a single individual. Savages can only act in concert when all are agreed, hence councils are their governing power, and the orator has as much influence among them as the successful warrior; but when they have advanced a step, and power has become concentrated, the orator becomes silent, and the war-chief is the government. I had read with avidity the histories of Mexico, and gave to them implicit credence, until I stood upon the Indian mound of Cholula, and searched in vain for the least vestige of that magnificent city of 40,000 houses, which, only 300 years ago, was in the height of its prosperity; and though it is not in the power of man, in the space of a thousand years, wholly to obliterate the traces of a great city, yet not a vestige of the Cholula of Cortez can now be found. As I followed up the investigation, I soon discovered that not a vestige of any of the cities that entered into the alliance with Cortez can now be found. Not a vestige exists even of the old city of Mexico, except the calendar and sacrificial stones, of which I shall speak hereafter. CORTEZ AND BERNAL DIAZ.