Scientists are trying to determine why 130 'sacrificial' skulls dating back over 1,000 years have been found on the outskirts of Mexico City instead of the usual archaeological sites.
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Fri, 02/22/2013 - 9:31am
Scientists are trying to determine why 130 'sacrificial' skulls dating back over 1,000 years have been found on the outskirts of Mexico City instead of the usual archaeological sites.