Using a combination of archaeological and geological evidence, scientists have finally pinpointed the date of the infamous Tierra Blanca Joven eruption, which likely devastated Maya communities in what is now El Salvador. Ilopango volcano blew its stack 1,589 years ago—give or take a year or two—according to new research published this week in Proceedings of the National Academy of Sciences. That this volcano erupted well over 1,000 years ago was well established, but the new research finally firms up the date, in a paper that will be of interest to archaeologists, historians, geologists, and climate scientists. The Ilopango caldera is...
