Located south of the modern-day city of Mérida, the sinkhole (also known as a cenote) was once positioned just outside the ancient Maya city of Mayapán, according to National Geographic. Experts believe the bones found in it belong to locals who were given a watery burial following an epidemic or similar tragedy.
"Suppose these were plague victims," archaeologist Bradley Russell told National Geographic. "You wouldn't want them near the rest of the population. And you wouldn't want to drink the water either."
That discovery reinforced the theory that the Maya considered cenotes to be "thresholds of communication with the spiritual and sacred world that lay under the surface of the Earth," Guillermo Anda, a professor at the Autonomous University of Yucatán, told the magazine.
Unlike the Chichén Itzá remains, however, the bones scattered throughout Sac Uayum are not considered evidence of ritual sacrifice. Source: Huff Post