An Aboriginal race called the Toltecs is said to have occupied Vera Cruz and Tabasco and to have extended its empire westward on the plateau to and perhaps beyond the present capital.
There has been much discussion in regard to the origin of the Toltecs, some assuming that they were a distinct race, and others that they belonged to the Nahuatlaca.
There is evidence to show that the Aztecs adopted the civilization of the Toltecs, including their religion (Quetzalcoatl being a god of the Toltecs and Mayas), calendar and architecture.
Earliest of the Nahua nations, the Toltecs are traditionally related to have left their northern home of Huehuetlapallan in the 6th century; and there is other evidence of the real existence of the nation.
With the Toltecs is associated the tradition of Quetzalcoatl, a name which presentsitself in Mexican religion as that of a great deity, god of the air,.