[Publius6961]

...since no living person has ever had any contact with these peoples. They died out from diseases indavertantly [sic] brought to the New World by explorers.

Now there's a historically significant trick: kill millions of gentle savages from diseases inadvertently introduced by those nasty European white guys but not as living persons who ever had contact with them. They must have used either dead guys or the post office... but I repeat myself...

[Some hope remaining.]

Um, I think that he meant "no person still living today ever had contact with them." Whether or not the claim is true (about the millions of people in that civilization), anyone who had contact with them is dead now. :)