A while back, both a DNA and cultural connection was noted between a Native American tribe in New Mexico and ancient Japanese of about this period as well.
The Zuni tribe was first noted because its DNA was very different from the other tribes in the region, as is its culture and artistic motifs. But once the DNA match with ancient Japan was noted, a comparison between artistic styles also showed a lot of similarities.
Yeah, the search revealed some prior threads on the like. I thought this probably updated them.