小柯机器人

荷兰格罗宁根大学Michael W. Dee、Margot Kuitems等研究人员合作发现欧洲人在公元1021年出现在美洲的证据。相关论文于2021年10月20日在线发表在《自然》杂志上。

研究人员提供证据表明维京人在公元1021年就出现在纽芬兰。研究人员利用公元993年宇宙射线引起的大气中放射性碳浓度的激增来克服了以前年龄估计的不精确性。这个新日期为欧洲人认识美洲奠定了一个标志，并代表了人类环绕地球的第一个已知点。它还为未来研究跨大西洋活动的最初后果提供了一个明确的结合点，如知识的转移，以及遗传信息、生物群和病理的潜在交流。

据介绍，跨越大西洋的探索发生在哥伦布穿越前的几个世纪。在加拿大纽芬兰可以找到早期欧洲人进入美洲的实物证据。然而，到目前为止，还不可能确定这一活动发生的时间。

附：英文原文

Title: Evidence for European presence in the Americas in ad 1021

Author: Kuitems, Margot, Wallace, Birgitta L., Lindsay, Charles, Scifo, Andrea, Doeve, Petra, Jenkins, Kevin, Lindauer, Susanne, Erdil, Pnar, Ledger, Paul M., Forbes, Vronique, Vermeeren, Caroline, Friedrich, Ronny, Dee, Michael W.

Issue&Volume: 2021-10-20

Abstract: Transatlantic exploration took place centuries before the crossing of Columbus. Physical evidence for early European presence in the Americas can be found in Newfoundland, Canada1,2. However, it has thus far not been possible to determine when this activity took place3,4,5. Here we provide evidence that the Vikings were present in Newfoundland in AD1021. We overcome the imprecision of previous age estimates by making use of the cosmic-ray-induced upsurge in atmospheric radiocarbon concentrations in AD993 (ref.6). Our new date lays down a marker for European cognisance of the Americas, and represents the first known point at which humans encircled the globe. It also provides a definitive tie point for future research into the initial consequences of transatlantic activity, such as the transference of knowledge, and the potential exchange of genetic information, biota and pathologies7,8.

DOI: 10.1038/s41586-021-03972-8

Source: https://www.nature.com/articles/s41586-021-03972-8

Nature：《自然》，创刊于1869年。隶属于施普林格·自然出版集团，最新IF：69.504
官方网址：http://www.nature.com/
投稿链接：http://www.nature.com/authors/submit_manuscript.html