Ancient Mesoamerican civilization : A city that was once home to around 90,000 people may have been brought down by centuries of drought, according to a 2015 study.
Researchers found that Cantona, a fortified city in central Mexico, experienced repeated long-term droughts that likely damaged crops and water supplies, contributing to its abandonment between A.D. 900 and A.D. 1050, as per a report.
