What's Four Hundred Years Between Friends?

No writing today, thanks to a flurry of research after making the abrupt realization that this chapter would work a whole lot better--and probably make a bunch of potential archaeologist readers a lot happier--if I advanced it four hundred years closer to the present. The situation I'm writing about seems to be a lot closer to what was going on in ancient America in the 6th century B.C. rather than the 10th--and those archaeologists won't have to get frustrated with me stretching certain things farther into the past than we have any kind of artifact-based arguments for.

This will make for a bit of rewriting hassle, but in a small way compared to what new stuff I've opened myself up to. For the artifact record, anyway; so far as I can tell, what I've been writing in this section doesn't contradict the Native Americans' own stories about themselves.