Mexico City

Mexico City is located in the Valley of Mexico, also called the Valley of Anáhuac, a large valley in the high plateaus at the center of Mexico, at an altitude of 2,240 metres (7,300 ft). The city was originally built as Tenochtitlan by the Aztecs in 1325 on an island of Lake Texcoco. It was almost completely destroyed in the siege of 1521, and was subsequently redesigned and rebuilt in accordance with the Spanish urban standards. In 1524 the municipality of Mexico City was established, known as México Tenustitlán, and as of 1585 it was officially known as ciudad de México.

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- The city now known as Mexico City was founded by the Mexica, also called the Aztecs, in 1325. The old Mexica city is now referred to as Tenochtitlan. The Mexica were one of the last of the Nahuatl-speaking peoples who migrated to this part of the Valley of Mexico after the fall of the Toltec Empire. Their presence was resisted by the peoples who were already in the valley, but the Mexica were able to establish a city on a small island on the western side of Lake Texcoco.