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https://www.ancient.eu/Aztec_Civilization/
Around 1345 the first Pipiltin came to power. -
https://www.ancient.eu/Tenochtitlan/
Around 1360 the Aztec capital of Tenochtitlan was built -
https://aztecsandtenochtitlan.com/aztec-history/aztec-triple-alliance/
The Aztecs formed a triple alliance between the Tenochtitlan, Texcoco, and Tlacopan. -
https://www.ancient.eu/Templo_Mayor/
Around 1487 Templo Mayor was finished. -
https://alxlockwood.webs.com/azteccomets1511and1521.htm
The Aztec priests marked the sighting of a comet in the night sky. the comet was believed to be the sign of death. -
https://www.history.com/topics/exploration/hernan-cortes
Cortés and his crew reached Mexico in February of 1519. He entered Tenochtitlan, the Aztec capital home to ruler Montezuma II, on November 8, 1519. -
https://www.history.com/topics/exploration/hernan-cortes
Cortez forms an alliance with the Talaxcala and begins to attack the Aztecs, he then takes over the Capital.