Archaeologists in Guatemala have discovered the oldest evidence of the Maya calendar on record: two mural fragments that, when pieced together, reveal a notation known as "7 deer," a new study finds.
At head of title: University of Pennsylvania. The University Museum. The specimens of pottery are from Guatemala, Honduras, British Honduras, Yucatan and Chiapas, Mexico. Pts. 2 & 3 edited by J. Alden ...
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