Aztec Timeline

1100	Aztecs left homeland in search of new home.
1195	Aztecs arrived in Valley of Mexico.
1250	Aztecs settled near Lake Texcoco.
1325	Tenochtitlan was founded. First temple built by Aztecs.
1350	Causeways built with canals.
1370	Tenoch, Aztec Priest-Ruler, died. Aztecs ruled by Tepanecs.
1375	Acamapichtli becomes first ruler of Aztecs.
1400	Tepanecs were defeated. Aztecs expand and rule whole valley.
1428	Aztecs joined forces with Texcoco & Tlacopan formed Triple Alliance. Atzcapotzalco conquered.
1440	Moctezuma started rule.
1452	Tenochtitlan destroyed by flood. 1452-4 Famine.
1458	Moctezuma sent armies to conquer lands.
1469	Moctezuma I died.
1486	Ahuizotu became ruler.
1487	Great Temple at Tenochtitlan dedicated. Aztecs expanded southward into Mayan territories.
1502	Moctezuma II became ruler. Aztec Empire at height.
1519	Cortez comes to Mexico. Moctezuma II killed.
1520	Cuitlahuac elected ruler.
1521	Tenochtitlan destroyed.
1522	Tenochtitlan rebuilt, named Mexico City. Declared capital of Spanish colony of New Spain.

Source: http://library.thinkquest.org/27981/time.html