Come on, everyone should know explorers from Atlantis
flying on the backs of tamed giant sea birds
were the first colonists of the Americas..

Though some respected internet experts say space men gods might have guided them...

Though sadly, so far no records of their folk songs have been discovered yet..

But we could try to reconstruct them based on all highly believable evidence of their cultural colonization...

..and these ancient sea/air faring explorers probably wrote the first version
of the melody to "This land is your land"...