Periods in the Americas and try to keep up on them on my own as new info comes out, but Iearned some new things from this video.
Example: I knew about the ancient Great Lake's Copper Culture, but had been taught that they did not know about smelting rocks to extract the copper. They were supposed to have just picked up fairly pure nuggets for hammering into shapes. But the video cites eviden e thar they did use smelting and also used heat and cooling to crack the copper ore off of the walls of mines. So they also had some mines and sophisticated techniques.
Also, I did not know about the genetic differences between the descendants of Clovis people and the Native people of South America.
I was happy to see that one of my hypotheses about Clovis is confirmed now by evidence. When archaeologists started coming up with site dates older than Clovis, it seemed likely to me that the older populations of people in Mesoamerica or South America probably developed the Clovis points to deal with large mammals and were so successful at it that the technology spread north into North America. Now the evidence supports that.
= new reply since forum marked as read