Between roughly 800 and 1000 CE, the great Maya cities of the southern lowlands—Tikal, Calakmul, Copán, Palenque—were abandoned. Populations dispersed. The jungle took the monuments. A civilization that had flourished for two thousand years, with writing, mathematics, and astronomy far ahead of its neighbors, contracted dramatically.

First, the correction: the Maya didn’t disappear. Millions of Maya live in the region today, maintaining languages and traditions descended from those cities. The collapse was neither instant nor uniform—different cities declined at different rates, and the northern Yucatan cities actually flourished during the early collapse before their own later decline.

Climate records point to a prolonged drought between 800 and 1100 CE—one of the driest periods in two thousand years, hitting a civilization dependent on rainfall agriculture with no large rivers and no centralized irrigation.

But drought alone doesn’t cut it. The Maya had survived dry periods before. The current thinking stacks the causes: deforestation and soil exhaustion, endemic warfare between city-states, disrupted trade networks—with the drought as the trigger that overwhelmed systems already under stress. The evidence for intensifying warfare is physical: fortifications, destruction layers, and carved images of captives and battles.

As a military man, I read that as a cascade failure. No single cause takes down a system that resilient. It takes several, arriving together, hitting a command structure already at war with itself. I look at it as a warning for our own society—I show how our civilization can collapse relatively quickly and more people won’t even realize it until it’s too late in my Green Beret Survival series, starting with Slow Fall: https://link.amazon/B0h2v7Dpr

The Maya collapse is one of 100 entries in The Little Black Book of Ancient Mysteries. https://amzn.to/4pSLpH6