🛠️ Invention or technique

Chinampa raised-field agriculture

Chinampas (agricultura lacustre intensiva)

Date
c. 1325 · confidence medium
Place
Tenochtitlan and Xochimilco, Lake Texcoco, Mexico
Credited to
Nahua peoples of the Valley of Mexico (the Mexica)
Field
Life & health

What it is

Artificial islands of mud and vegetation anchored with willows in shallow waters, yielding up to seven harvests a year of maize, chilli and squash. The most productive agricultural system in pre-Columbian America.

Earlier chinampas existed in the basin (11th–12th centuries); the great expansion was Mexica (14th–15th centuries).

What it led to

  • the food supply of Tenochtitlan (200,000 inhabitants) and the Mexica empire
  • lake hydraulic engineering: the Nezahualcoyotl dike (1449) and aqueducts
  • a model of sustainable agriculture studied today in agroecology

Built on

  • Maya and Tiwanaku raised fields
  • maize farming

Made possible

  • Nezahualcóyotl dyke
  • Chapultepec aqueduct

Links