Tenochtitlan

Tenochtitlan (Nahuatl languages: Tenōchtitlan pronounced [tenoːt͡ʃˈtit͡ɬan]; Spanish: Tenochtitlan), also known as Mexico-Tenochtitlan (Nahuatl languages: Mēxihco Tenōchtitlan pronounced [meːˈʃiʔko tenoːt͡ʃˈtit͡ɬan]; Spanish: México-Tenochtitlan), was a large Mexica altepetl in what is now the historic center of Mexico City. The exact date of the founding of the city is unclear. The date 13 March 1325 was chosen in 1925 to celebrate the 600th anniversary of the city. The city was built on an island in what was then Lake Texcoco in the Valley of Mexico. The city was the capital of the expanding Aztec Empire in the 15th century until it was captured by the Spanish in 1521.