Pyramid Tomb Found: Signs of Civilization’s Birth?

After sheltering jeweled royals for centuries, the oldest known tomb in Mesoamerica–ancient Central America and Mexico, roughly speaking–has been uncovered, archaeologists announced Tuesday.

Apparently caught between two cultures, the 2,700-year-old pyramid in Chiapa de Corzo (map), Mexico, may help settle a debate as to when and how the mysterious Zoque civilization arose, according to excavation leader Bruce Bachand.