Xolotl took the title of Chichimecatl Tecuhtli, the great chief of the Chichimecs; and his descendants added to this the name Huactlatohani (Lord of the Whole World). The territory claimed for him included a large part of the present Mexico, the states Morelos and Puebla, a portion of Vera Cruz, the greater part of Hidalgo, the whole of Tlaxcalla, and the valley of Mexico. He strengthened his power by marrying his son to a daughter of the late Toltec sovereign, saved from the destruction of the race, and altogether showed wisdom and judgment not to be expected from the antecedents of his people. Such conduct inclines students of this remote period to think that these Chichimecs were not the barbarous tribe who lived in caves and ate lizards, but a later arrival from the mysterious north. During the reign of Xolotl new tribes came wandering down from these remote regions. These successive waves of emigration give the idea of a constantly renewed struggle for supremacy far off in the unknown Amaquemecan, resulting in the migration of the conquered side. Xolotl received these new arrivals with benign hospitality, gave them lands to plant, and encouraged them to settle in his realm. Among these were the Aculhuas and Tepanecs, who founded the kingdoms, afterwards important, of Atzcapotzalco and Tlacopan. Xolotl had the credit of reigning from 1120 to 1232, when he died. This would make him at least one hundred and twenty years old at his death. And some people from this imagine that there were several Xolotls that succeeded one another. Let us believe that he lived to this great age. The name means "Eye of great vigilance." For three generations his immediate successors ruled the kingdom with firmness and judgment, compelling their people to cultivate the land, thus protecting agriculture, which was their chief source of wealth, and building towns to put an end to wandering habits inherited from the men who lived in caves on the mountain side. [Illustration: PORTICO AT KABOH.] Quinatzin, in the beginning of the thirteenth century, established the capital of the kingdom of the Chichimecs in Texcuco. It was during his reign that the Aztecs, or Mexicans, whom we now hear of for the first time, established themselves in Tenochtitlan, which was on the site of what is now the city of Mexico, though their arrival made but little stir in the neighborhood. The Chichimecs were troubled by quarrels with the new kingdom of Atzcapotzalco, but for a century they maintained their good standing, always advancing in civilization and the arts of peace, and it was not until 1409 that one of their kings, Ixtlilxochitl, found these rising neighbors too strong for him. The Tepanecs and the Aztecs united, and swore together a conspiracy to overwhelm him. He was assassinated, and his throne was usurped by Tezozomoc, the king of Atzcapotzalco.