In a recent article, Kunz and Mills (2021) report 10 drawn, a speo finished, turquoise blue, IIa40 beads manufactured in Venice and recovered from three late precontact sites in the Alaskan Arctic. They argue that these beads date to the fifteenth century, predating Columbus's arrival in the Americas. This conclusion is certainly in error because beads of this type were not manufactured prior to approximately AD 1560. The historical and archaeological evidence for this dating is substantial. Additionally, the elemental and radiocarbon evidence presented by Kunz and Mills (2021) supports a late sixteenth- to early seventeenth-century date for these beads.

在最近的一篇文章中，Kunz 和 Mills（2021 年）报告了在威尼斯制造并从阿拉斯加北极的三个晚期预接触地点回收的10 个已绘制、speo成品、绿松石蓝色、IIa40 珠子。他们争辩说这些珠子可以追溯到十五世纪，早于哥伦布到达美洲。这个结论肯定是错误的，因为这种类型的珠子是在大约公元 1560 年之前制造的。这个年代的历史和考古证据是大量的。此外，Kunz 和 Mills (2021) 提供的元素和放射性碳证据支持这些珠子的年代为 16 世纪末至 17 世纪初。