Aztec Aqueduct from Chapultepec Completed

1430

Moctezuma I completed a double-barreled stone aqueduct carrying fresh spring water from the forested hills of Chapultepec to the island capital of Tenochtitlan across three miles of open lake. The engineering was remarkably sophisticated: one channel flowed while the other was cleaned and repaired, ensuring continuous supply to the city's fountains and canals. The aqueduct solved the brackish lake water problem that had plagued the capital since its founding.