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"What Columbus Already Knew"

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#1
David Medeiros

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NPR short article on a new book that discusses, among other things, the idea that a round earth was widely known or speculated on before previously thought:

http://www.npr.org/b...us-already-knew

GIS Reference and Instruction Specialist, Stanford Geospatial Center.

 

www.mapbliss.com

 


#2
dsl

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This is also a nice treatment of the subject of a round earth.

Cheers,
David




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