From this paper published in "Nature": https://www.nature.com/articles/s41586-020-2509-0.epdf https://www.nature.com/articles/s41586-020-2509-0.epdf Interestin

From this paper published in "Nature": https://www.nature.com/articles/s41586-020-2509-0.epdf https://www.nature.com/articles/s41586-020-2509-0.epdf Interestingly enough seems to be Clovis culture evidence. Clovis culture artifacts have been found in modern day USA as well. The evidence is striking because your current college prehistory textbook is claiming with high confidence that Homo sapiens had never set foot on the Americas before 15,000 BC.