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Jan 1, 1100
The Aztecs leave their homeland of Aztlan in northern Mexico and begin their journey south. Over the next 225 years the Aztecs will move many times until they finally settle down at the city of Tenochtitlán.
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Oct 16, 1200
The Aztecs arrive in the Valley of Mexico
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Oct 16, 1250
They settle in Chapultepec, but are forced to leave by the Culhuacan tribe.
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Oct 16, 1325
The city of Tenochtitlán is founded. It will become the capital of the Aztec Empire. The location is picked by the priests because it is where they see the foretold sign of an eagle holding a snake while standing on a cactus.
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Oct 16, 1350
The Aztecs begin to build causeways and canals around Tenochtitlán
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Oct 16, 1427
Itzcoatl becomes the fourth ruler of the Aztecs. He will found the Aztec Empire.
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Oct 16, 1428
The Aztec Empire is formed with a triple alliance between the Aztecs, the Texcocans, and the Tacubans. The Aztecs defeat the Tepanecs.
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Oct 16, 1452
The city of Tenochtitlán is damaged by a great flood. The next few years are filled with famine and starvation.
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Oct 16, 1519
Spanish conquistador Hernan Cortes arrives in Tenochtitlán. The Aztecs treat him as an honored guest, but Cortez takes Montezuma II prisoner. Cortez is driven from the city, but Montezuma II is killed.
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Oct 16, 1522
The Spanish begin to rebuild the city of Tenochtitlán. It will be called Mexico City and will be the capital of New Spain.