ico. During their movement inland, the Aztecs had to settle in many places and were forced to pay tribute to the chiefdom in charge of that area. While the Aztecs were trying to gain status by marrying into the Colhuacan, Achitometl gave one of his daughters to an Aztec leader. She was sacrificed during an Aztec ritual, which did not make the Colhuacanos happy. The Aztecs were then forced to leave the land and they fled to the swampy areas. These areas were not inhabited and so Tenochtitlan was founded on an island in the center of Lake Texcoco in 1325 AD. (Matos 37-43)
             In 1363 AD, Tenoch, the tlatoani of Tenochtitlan died. It was decided he would be replaced by Acamapichtli, who although had the required Toltec blood to inherit the position, was also of Aztec blood. The Tepanecs ran the Aztecs. They gave them Acamapichtli, and also demanded tribute from them. When the Tepanec leader Tezozomoc found that Acamapichtli would be their new ruler he decided the Aztecs would now have to pay twice the tribute. Acamapichtli was constantly trying to free the Aztecs of the grasp of Azcapotzalco, though he was never successful. His son and successor, Huitzilihuitl, also tried to free the Aztecs, though he failed as well. In 1417 AD, Huitzilihuitl died and Chimalpopoca took the position of tlatoani. To free Tenochtitlan of its dependence on Azcapotzalco, Chimalpopoca drew plans to build an aqueduct from Chapultepec to Tenochtitlan. They built of materials that were not suitable and it constantly broke down. Upon requesting the use of stones from the mainland, the Tepanecs refused and the Tepanec ruler Tezozomoc's son Maxtla had Chimalpopoca killed. Tezozomoc died in 1426 AD and Maxtla took over the throne. By the time Itzcoatl ascended as tlatoani, the Aztecs were completely fed up with the Tepanecs. In 1428 AD, with the help of their allies, the Aztecs defeated Azcapotzalco and were finally free from their rule. (Matos ...