What was the human hisory between North American Asia Eurasia and Europe before the 1450's?

2 answers

I noticed the question you copied has exactly the same misspellings.

Go cheat somewhere else.
About 12,000 years ago people from northeastern Asia began migrating to the Americas. They probably crossed the Bering landbridge, although some may have come by boat along the shore.

http://en.wikipedia.org/wiki/Native_Americans_in_the_United_States

The only European contact was the Viking brief settlement in what is now Nova Scotia, Canada.

http://www.essortment.com/all/lanseauxmeado_rvvi.htm