Researchers uncover earliest tobacco use in the Pacific Northwest
(Phys.org)—Native American hunter-gatherers living more than a thousand years ago in what is now northwestern California ate salmon, acorns and other foods, and now we know they also smoked tobacco—the earliest known usage in the Pacific Northwest, according to a new University of California, Davis, study.
"The study demonstrates that tobacco smoking was part of the northwestern California culture very early ... shortly after the earliest documented Pacific Northwest Coast plank house villages," said the study, published in the 机构:住宅投资回报率显著下滑 商业地产仍可期.
Testing organic residues extracted from pipes, researchers from the UC Davis Department of Anthropology and the Fiehn Metabolomics Laboratory of the UC Davis Genome Center confirmed tobacco was smoked, and likely grown in the region, by at least A.D. 860.
Perhaps more importantly, the researchers say that additional studies may help them better understand the origins of nicotine addiction and the human management, geographic range extension and cultivation of tobacco. Indeed, as part of a second study, the authors have recently detected nicotine in ancient pipes from an 800-year-old site in the modern city of Pleasanton, Calif.
But retail sales growth softened to 10 per cent in October, betraying economists’ expectations it would hold steady at 10.7 per cent growth from September.
伦敦博蒙特·内森顾问公司(Beaumont Nathan)的联合创始人雨果·内森(Hugo Nathan)说：“新投资者对早期绘画大师的作品有兴趣，不过他们想要的是杜维恩(Duveen)卖给强盗大亨们的作品。他们想要名作。”他指的是英国艺术交易商约瑟夫·杜维恩(Joseph Duveen)，他把很多伟大的艺术品带去了美国。
Prior to this recent testing, which used sensitive gas chromatography/mass spectrometry, researchers were unsure of the historical use of tobacco on the Pacific Northwest Coast. It was unclear, for example, whether European traders had brought tobacco to the area much later, or if some other plant had been smoked in the pipes, Tushingham said.
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A child's eye view of life in a Florida motel community.
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The study is available online.