Interior northwest Indians used tobacco long before European contact
October 29, 2018, Washington State University
Washington State University researchers have determined that Nez Perce Indians grew and smoked tobacco at least 1,200 years ago, long before the arrival of traders and settlers from the eastern United States. Their finding upends a long-held view that indigenous people in this area of the interior Pacific Northwest smoked only kinnikinnick or bearberry before traders brought tobacco starting around 1790.
Shannon Tushingham, a WSU assistant professor and director of its Museum of Anthropology, made the discovery after teaming up with David Gang, a professor in the Institute of Biological Chemistry, to analyze pipes and pipe fragments in the museum's collection.
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https://phys.org/news/2018-10-interior-northwest-indians-tobacco-european.html#jCp