History of the Aztec By Mank_Demes 500 The first Nahuatl speaking people settle in Mexico Period: 500 to Aug 13, 1521 Aztec Empire: Start and Finish Jan 1, 1325 Tenochtitlán settled by the Mexica people Jan 1, 1350 Causeways with canals constructed by the Mexica Jan 1, 1431 Establishment of the Triple Alliance After much fighting, the Mexica, Acolhua, and the Tepaneca people form a large alliance, officially establishing the Aztec Empire. Jan 1, 1440 Montezuma 1 assumes power Jan 1, 1487 Aztecs dedicate The Great Temple. This is the final version of the temple. Mar 4, 1519 Hernan Cortes arrives to the New World Nov 8, 1519 Cortes arrives at Tenochtitlán Aug 13, 1521 After a year of fighting, Tenochtitlán falls to Cortes Jan 1, 1522 Spanish build Mexico City atop the ruins of Tenochtitlán.