It helps a lot if there already waggon-roads, instead of donkey tracks! (Well, and a pile of other stuff; people managed to do an amazing amount of stuff with the neolithic toolkit, but they didn't do it as fast.)
I don't disagree at all with that pattern of movement; my (questionable, non-specialist) understanding is that the different words for things show up later, though.
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Date: 2018-11-18 02:56 am (UTC)I don't disagree at all with that pattern of movement; my (questionable, non-specialist) understanding is that the different words for things show up later, though.