The ancient North-Eurasian Aryаns having ancestors in common with Native Americans does explain part of the similarities seen in Eastern Woodlands Indians and Europeans and might also explain some of the natural affinity these people showed for each other upon first meeting.

Are Finns European? The Mystery of Finland with Survive the Jive

We are hearing whispers here of a broad-based Asian invasion of Europe from the east between A.D. 300 and 750