This also doesn't appear to be true: see David Graeber's book Debt: The First Five Thousand Years for his descriptions of how money actually emerges from religious ceremonies and temples, not barter (as most econ books have it) or "market exchanges."
(Incidentally, I don't agree with Debt's main implications about debt, but its anthropological work on money is fascinating! (https://jseliger.wordpress.com/2013/04/28/thoughts-on-debt-t...)