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  2. Pre-Columbian era - Wikipedia

    https://en.wikipedia.org/wiki/Pre-Columbian

    The Pre-Columbian era incorporates all period subdivisions in the history and prehistory of the Americas before the appearance of significant European influences on ...

  3. pre-Columbian civilizations | Britannica.com

    https://www.britannica.com/topic/pre-Columbian-civilizations

    29.08.2017 · pre-Columbian civilizations: The aboriginal American Indian cultures that evolved in Mesoamerica (part of Mexico and Central America) and the Andean region ...

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  7. Tamale - Wikipedia

    https://en.wikipedia.org/wiki/Tamale

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    www.frbsf.org/economic-research/publications/economic-letter

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  9. The Silk Road and Ancient Trade: Crash Course World ...

    www.youtube.com/watch?v=vfe-eNq-Qyg

    22.03.2012 · Video embedded · The Silk Road and Ancient Trade: In which John Green teaches you about the so-called Silk Road, a network of trade routes where goods such as ivory, silver

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  11. Resolve a DOI Name

    dx.doi.org

    Type or paste a DOI name into the text box. Click Go. Your browser will take you to a Web page (URL) associated with that DOI name. Send questions or comments to doi ...