There is evidence for trans Beringian trade and population mixing well into the 15th century: https://www.smithsonianmag.com/smart-news/tiny-blue-beads-european

There is evidence for trans Beringian trade and population mixing well into the 15th century: https://www.smithsonianmag.com/smart-news/tiny-blue-beads-european-artifact-north-america-old-180976966/ https://www.smithsonianmag.com/smart-news/tiny-blue-beads-eu...