References

 

http://www.idahohistory.net/dateline.html
http://www.si.edu/resource/faq/nmnh/origin.htm
http://www.indians.org/articles/paleo-indians.html
http://www.museum.state.il.us/muslink/nat_amer/pre/htmls/archaic.html
http://www.museum.state.il.us/muslink/nat_amer/pre/htmls/miss.html
http://www.museum.state.il.us/muslink/nat_amer/pre/htmls/woodland.html