University Outreach - College of Continuing Education

College of
Continuing Education

College of
Liberal Studies
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Norman, OK 73072
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 OUTREACH.OU.EDU


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The Inca were master stone masons and built this wall without mortar or metal tools solely by perfectly fitting rock that was cut by harder stone.

by Outreach Pressroom Staff — last modified 2007-08-17 09:05
The Inca were master stone masons and built this wall without mortar or metal tools solely by perfectly fitting rock that was cut by harder stone.
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