> I was reading this article about the articulatory symbolism of
> proto-Sumerian and was wondering if anyone had used such a method in any
> of their conlangs.
>
>
http://www.sumerian.org/prot-sum.htm
I checked out this URL and was pretty dubious about this guy's claims. He
seems to be saying that the proto-Sumerians invented their language ex
nihilo at about 6000 BC, which is a pretty outrageous claim. It's not
impossible, but to beleive it I'd have to see more convincing evidence
than this guy gives.