Around which time did the indians migrate to North America?

Answer 1

In spite of the lingering controversy about who were the first Americans, anthropologists and archaeologists generally agree that most of the indigenous peoples who lived in the New World right before the European conquest descended from Siberian hunters, who entered North America about 15-20,000 years ago, and then gradually spread to Central and South America.
Here are some really cool sites on the subject. Enjoy..

http://www.yale.edu/ynhti/curriculum/units/1980/2/80.02.07.x.html

http://albionmonitor.net/5-5-96/amazonsettlement.html

http://ncmuseumofhistory.org/nchh/amerindian.html

http://www.si.edu/encyclopedia_si/nmnh/origin.htm

http://www.curtis-collection.com/tribe%20data/arikara.html

http://history.berkeley.edu/faculty/Spear/H135/Timeline1.pdf

http://www.pnas.org/cgi/reprint/77/9/5480.pdf

Answer 2

go to www.Native American Indians.com they have any info their you need