Proper noun
Valley of Mexico
(geography) A highlands plateau in central Mexico roughly coterminous with present-day Mexico City and the eastern half of the State of Mexico.
During the Tertiary period the whole valley of Mexico was one great lake. Edward Burnett Tylor
According to their own history, when the Mexicas arrived in the Anahuac valley ( Valley of Mexico ) around Lake Texcoco, the groups living there considered them uncivilized. Source: Internet
Along with this, Tlaloc is manifested in the form of boulders at shrine-sites, and in the Valley of Mexico the primary shrine of this deity was located atop Mount Tlaloc. Source: Internet
A third of all the natives of the Valley of Mexico succumbed to it within six months of Spaniards arrival. Source: Internet
By the Middle Preclassic Period (900–300 BC), Olmec artistic styles had been adopted as far away as the Valley of Mexico and Costa Rica. Source: Internet
The Mexica people arrived in the Valley of Mexico in 1248 AD. Source: Internet