A temple in the Valley of Oaxaca, Mexico, may have been used by the Zapotec civilization around 300 B.C. and could have been the site of human sacrifices. A human tooth and limb bone were found at the El Palenque site, along with burn boxes and residences that researchers believe housed the priests of the temple. Researchers say the temple was used until the end of the first century B.C. or the first century A.D., which means it's the oldest temple discovered in the area to date.
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