Transformation of Ancestral Puebloan Chaco Civilization (c. 1080s)

Name: Transformation of Ancestral Puebloan Chaco Civilization (c. 1080s)
Start: 1081
End: 1090

Type Event Region North America Time c. 1081–1090

Around the 11th century CE, the Ancestral Puebloan culture (Chaco culture) of Chaco Canyon in the American Southwest shifted from the heyday of its G…

Timeline

c. 1081–1085Pueblo Bonito · New MexicoDendrochronology shows a marked decline in new construction at core Great Houses such as Pueblo Bonito in Chaco Canyon, indicating that elite-driven grand building programs were stalling and signs of strain were emerging in the regional political-economic system.
c. 1086–1090Peripheral nodes of the Chaco road network · Colorado PlateauPopulation and activity gradually shifted from Chaco Canyon's core area to peripheral satellite communities and more distant places such as Aztec; although the Chaco road system still maintained regional connections, the center's control over the wider 'Chaco World' clearly weakened.

Sources

The Chaco Meridian: One Thousand Years of Political and Ritual Power in the Ancient Southwest — Stephen H. Lekson (1999)
A History of the Ancient Southwest — Stephen H. Lekson (2009)