Don't forget that the Topper Site in South Carolina has been dated at 50,000 years old.
lol...definitely helps to have a PhD when differentiating the historically important mounds of dirt from your everyday dirt.
That said, it is an interesting article.
I used to live just a few miles from the Combahee (rhymes with "Gumby").
That area has a lot of charm, but the biting insects are so thick and fierce down there, they must be experienced to be believed. I'm still amazed that the settlers were able to tough it out down there.