In the area where the Colorado, Utah, Arizona and New Mexican borders now meet, ancestral Pueblo societies thrived and then collapsed several times, over the span of 800 years.

Each time they recovered, their culture transformed. This shifting history can be seen in their pottery and the incredible stone and earth dwellings they created. During 300 of those years, some Pueblo peoples, who also used ink tattoos, were ruled by a matrilineal dynasty.

As in the collapse of other ancient civilizations, ancestral Pueblo social collapses align with periods of changing climate – but Pueblo farmers often persevered through droughts, suggesting that there was more to their collapses than just environmental conditions.

Tim Kohler.
Kohler

“Societies that are cohesive can often find ways to overcome climate challenges,” explained Washington State University archaeologist Tim Kohler back in 2021.

“But societies that are riven by internal social dynamics of any sort – which could be wealth differences, racial disparities or other divisions – are fragile because of those factors. Then climate challenges can easily become very serious.”

Find out more

Science alert