Activities/Yupana: Difference between revisions
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== Yupana == | == Yupana == | ||
[[File:Yupana-origins.png|300px|From | [[File:Yupana-origins.png|300px|From http://en.wikipedia.org/wiki/File:Yupana.jpg]] | ||
Yupana is an Incan counting device similar to an abacus. | Yupana is an Incan counting device similar to an abacus. | ||