|  | Articles From The Smithsonian - http://www.smithsonianmag.com Articles from the Smithsonian Institution's award-winning, monthly general interest magazine, plus exclusive web articles, videos, blogs, photographs and more.
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| Association Vittfarne - http://www.vittfarne.com A Swedish non-profit organization promoting research about travelling methods of the vikings
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| History Nexus - http://www.historynexus.net Combines the subject of history with the latest Web 2.0 ideas. Expanding categories include biographies, genealogy and local and labour history. Aims to be a central portal for history on the web.
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| Chiropractic Philosophy Chiropractic History Books - http://www.philosophyofchiropractic.com Chiropractic philosophy and chiropractic history detailed through chiropractic books. History of chiropractic, philosophy of chiropractic in these chiropractic philosophy books.
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