🛠️ Invention or technique

Teotihuacan oriented urban plan

Urbanismo orientado de Teotihuacan

Date
c. 200 CE · confidence medium
Place
Teotihuacan, San Juan Teotihuacán, State of Mexico, Mexico
Credited to
Teotihuacanos
Field
Tools

⚠️ Disputed: the sources disagree.

What it is

A city of more than 100,000 inhabitants laid out on a grid offset 15.5° from north, organised around the Avenue of the Dead, with apartment compounds and drainage. It was the largest city in the Americas of its time.

The 15.5° orientation is linked to solar calendar dates; its exact meaning is debated.

What it led to

  • an urban model of reference for all Mesoamerica
  • planned multi-family housing
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Sources✓ verified 2026-09-25