The earliest buildings at Teotihuacan date from this period. Over the next four centuries, Totonac, Zapotec, Mixtec, and Maya peoples contribute to the rise of the Teotihuacan civilization.
The Pyramid of the Sun, the largest pyramid at Teotihuacan is completed.
The Xitle volcano, in what is today Tlalpan in the south of the city, erupts multiple times. In forming the Pedregal de San Ángel lava fields still visible across the south of Mexico City, most of what was likely a very sophisticated city of Cuicuilco was destroyed. The fleeing Cuicuilcan people are thought to have had a strong influence on the only-then increasingly powerful Teotihuacan.
In January, Teotihuacan invades and subjugates what is today the Petén department in Guatemala. One of the most powerful Maya strongholds of the classical period, Tikal comes under Teotihuacan rule. Tikal was completely abandoned by the end of the 10th century.
Teotihuacan reaches the peak of its civilization although prolific mural painting continues well into the next 200 years.
Tula, north of the City in the state of Hidalgo and today known as Tula de Allende, begins rising in stature and power. It will eventually dominate what is today central Mexico.
Topiltzin, the later ruler of Culhuacán, is born at about this time. Culhuacán, an agricultural village in what is today Iztapalapa, was likely settled by those migrating from the then only recently fallen Teotihuacan.
1100 – 1200
Settlement begins in the area of Pochtlan in present-day Azcapotzalco. Results of excavations there were published only in 2015.
The pilgrimage of the Mexica and other Nahua speaking peoples is said to have begun with their departure from a possibly mythical land called Aztlán or Aztátlan. This land would much later be adapted to refer to all of the multiple peoples within the Triple Alliance who traced their origins to Aztlán. (See “1810” below.)
New groups of Hñañu / Otomí people arrive to what is today the Valle de Milpa Alta. Said to have arrived from old Amaquemecan, among their new settlements were Tecómitl, today’s San Antonio Tecómitl.
A chieftain named Matlacoatl is said to have established the village of Azcapotzaltongo, today known as Villa Nicolás Romero (in Edomex). A later leader, Acolhuatzin (1283 to 1343) moved the seat of this dominion to what is today the center of Azcapotzalco.
The island kingdom of Mixquic is founded by Hñañu / Otomí, Chalca, and Cuitlahuaca peoples in what is today the City’s southeast.
A group of Xochimilca people found the small village which grew into the town of Tulyehualco, part of today’s Xochimilco.
The king of Culhuacán, historically a Toltec refuge city, is persuaded by a group of Mexica people to permit them to settle in a relatively infertile patch of land called Chapultepec. In exchange the Mexica are believed to have served as mercenaries for Culhuacan.
The first Xochimilca Lord, Acatonalli, founds a village on Cuauhilama hill, overlooking much of present day Xochimilco.
The island of Iztacalco, then entirely within Lake Texcoco, is settled by Mexica farmers. It was to remain a relatively isolated island until the end of the colonial period, and an island until the mid-19th century.
The legendary founding of México-Tenochtitlan, capital of the Mexica empire.
Dissident Mexica break away from Tenochtitlan to found México-Tlatelolco on the northern portion of their rather small island.
Tepaneca people establish themselves in the area of Cuajimalpa, and control the forests there for about 100 years from their capital in Azcapotzalco.
Tezozomoc takes control of Azcapotzalco. His dominion reached most of the Valley of Mexico into Cuernavaca and north into Tenayuca and Atotonilco.