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Discover Magazine: Calendar Precision
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Architectural evidence of the Anasazi or Pueblos suggest that shadow casting may have been the method used for solar alignment, allowing for warmth during the winter and coolness during the summer.... (more info)

Architectural evidence of the Anasazi or Pueblos suggest that shadow casting may have been the method used for solar alignment, allowing for warmth during the winter and coolness during the summer. Learn more on Discovery Channel's "Discover Magazine."

Related Article: Learn more about early Native Americans.

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