Decline of Tiwanaku (1010s)

Timeline

1. 1010–1019Tiwanaku ceremonial core · BoliviaArchaeological strata of the early 11th century at the Akapana pyramid, Kalasasaya, and other ceremonial structures show weakened maintenance activity and signs of some spaces being repurposed, reflecting declining elite ritual order and corvée mobilization capacity.
2. 1011–1019Tiwanaku lake-basin agricultural landscape · AltiplanoThe raised-field and canal agricultural system may have lost effectiveness due to drought, lake-level changes, and social division; the erosion of the food base accelerated political fragmentation, and the rising power of northern groups such as the Colla laid the groundwork for a power vacuum later filled by the Inca Empire's integration of the Andean highlands.