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== Yupana ==
 
== Yupana ==
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[[File:Yupana-origins.png|300px|From [http://en.wikipedia.org/wiki/File:Yupana.jpg]]]
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[[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.

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