Where did Native Americans come from??

http://news.nationalgeographic.com/news/2013/11/131120-science-native-american-people-migration-siberia-genetics/

http://www.bibliotecapleyades.net/ciencia/ciencia_adn05.htm

Interesting articles of the origins of  Native Americans these are.
The timeline leaves room for dispute, especially, if you debate how old the earth actually is!  :-)