Well, yes and no on that one. Yes to the Anishinaabe and hundreds of other tribes being the first to the Americas. No to scientific findings that change like the seasons.
It has been pretty well established scientifically that the first is true and has been accepted for as long as I can remember. The scientific evidence just keeps getting better for this theory The 'First Americans': Humans arrived in THREE great migrations across land bridge from Siberia - and DNA differences can still be detected today | Mail Online .
The greatest thing the peoples of the Americas have in common is that we were all immigrants at one time or another and have on heck of a deep shared gene pool because of it.
Bob