Archaeologists in El Salvador have made a major historical breakthrough in Antiguo Cuscatlán, unearthing a well-preserved human burial estimated to date back to 850 B.C. The excavation, led by Yale doctoral candidate Carlos Flores Manzano alongside experts from the National Directorate of Cultural Heritage, recovered the ancient skeleton from Trench 1 at the Pasaje 4 archaeological site. The remains were buried face down in a prone position beneath dense layers of volcanic ash that sealed the valley’s ancient past nearly three millennia ago.

The rare site also revealed a small ceramic vessel of the Usulután type and two distinct petrified cassava cultivation tracks, offering an unprecedented glimpse into early Mesoamerican agriculture. One agricultural furrow was buried under material from the Plan de la Laguna crater eruption around 850 B.C., while a second remained preserved under ash from the massive Ilopango Caldera explosion centuries later. According to Ministry of Culture officials, “the remains were found in a prone position at 17 degrees east of north, and initial estimates suggest they date to 850 B.C.”

Researchers believe this discovery connects to decades of regional studies, including pioneer excavations in 1987 and groundbreaking work on the volcanic history of Plan de la Laguna in the late 1990s. The site suggests the surrounding area may hold a similar concentration of ancient remains to those found at Chalchuapa’s famous Structure 3-7. The newly recovered bones will soon undergo radiocarbon testing to confirm their exact age and genetic analysis to determine the individual’s sex and biological profile.

This extraordinary rescue underscores the profound relationship between ancient Mesoamerican populations and the catastrophic volcanic events that shaped their environment. By examining these bone remains alongside petrified crops, scientists hope to shed new light on how early communities in La Libertad Este adapted, farmed, and survived in the shadow of active volcanoes near modern-day San Salvador.