Aztec Culture Timeline By KatieBatay Dec 1, 1110 The Mexica travel from their northern homeland of Aztlan. Dec 1, 1325 Tenochtitlan Founded Aztexs founded Tenochtitlan on a marshy island in Lake Texcoco. Dec 1, 1502 Montezuma crowned Emperor of the Aztecs Montezuma crowned Emperor of the Aztecs. Dec 1, 1509 Cortez follows Coloumbus' route to the Americas and lands in Mexico. Dec 1, 1517 The appearance of a comet, believed to signify impending doom Dec 1, 1520 Death of Montezuma Dec 1, 1520 Smallpox Epidemic Dec 1, 1521 Tenochtitlan conquered by Spaniards led by Cortez. Dec 1, 1528 Cortez returns to Spain