Teotihuacan Rises as the Largest City in the Pre-Columbian Americas
A city whose builders' names are lost grows to 200,000 people and raises pyramids the Aztec would later worship as sacred
Quick facts
- Region
- Basin of Mexico, northeast of modern Mexico City
- Peak population
- Up to 200,000 (c. 375-500 CE)
- Pyramid of the Sun
- 215m per side, 60m tall, built c. 100 CE
- Decline
- Major structures burned c. 600 CE
What happened
Teotihuacan formed in the Basin of Mexico between 150 BCE and 200 CE and grew into the largest city in the pre-Columbian Americas, reaching a population as high as 200,000 at its height between 375 and 550 CE. Its builders raised the Pyramid of the Sun around 100 CE over a natural cave and spring, a structure 215 meters per side and 60 meters tall, and the smaller Pyramid of the Moon around 150 CE, connected by the 40-meter-wide, 3.2-kilometer Avenue of the Dead. Around 600 CE the city's major buildings were deliberately burned and its religious sculptures smashed, and the identity of the people who built and ran it is still unknown: even the name Teotihuacan is not theirs. It is Nahuatl, given centuries later by the Aztec, and means 'place of the gods.'
Why it matters
The Aztec who arrived in the Basin of Mexico centuries after Teotihuacan's fall found its pyramids already ancient and treated the ruins as the place where the gods created the current era of the world, folding a vanished city into their own religion. Teotihuacan set the template, the pyramid-and-avenue city plan, that later Mesoamerican capitals including Tenochtitlan echoed.
How we know
Excavations at the Pyramid of the Sun found a 100-meter tunnel beneath it leading to a four-chambered space, and dedicatory offerings of obsidian and greenstone carvings recovered from the Pyramid of the Moon date its construction phases; the identity of Teotihuacan's original inhabitants remains an open question because they left no deciphered written language.
Sources
- World History Encyclopedia. Teotihuacan · Reputable sourceworldhistory.org · The domain "worldhistory.org" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
- Smithsonian Magazine. Ancient Mesoamerican 'Pyramid of the Moon' May Align With Summer and Winter Solstices · Reputable sourcesmithsonianmag.com · The domain "smithsonianmag.com" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
See something wrong? . Corrections with a source get fixed fastest.
Part of a timelineHistory of Mexico34 events · From the Olmec's colossal stone heads to a modern republic, told through the conquest that ended one empire and the revolution that remade the nation twiceView all →