What it's stage in the passage theorytically was not credible. First of all; the fact that Croatan island had no trace back and had no evident that show what wass stated in the theory. there is lack of testimony or evidence to proof it.
Second, that the carving "Cro" and "Croatan" on the Roanoke island was only name of the island without any other evidences who did this and why they did it. The colonist just left it.
The third that in 1590 the tribes could be came along across England; because some of them can speak and write English and it was found 200 years ago in eighteenth century.
The three evidences (no trace, just a name,