That's an interesting piece of history--I'd heard of the Basque taking those jobs, of course, but hadn't realized Asian immigrants had diffused from 19th C urban centers.
(FWIW, it's always interesting to think about the "paleo Real Estate" market--one of the mysteries here in Tennessee is that fluted points are concentrated mostly on the Highland Rim. Part of it might just be selection bias of course, but if it's a given that those tribes could have basically chosen any part of the continent, what was the Holocene equivalent of good schools and a low cost of living?)
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