Well for one thing money only arises with the advent of states. Do you have evidence to the contrary? The accounting terminology of debits and credits should give an indication. That's not the terminology you would choose for any "medium of exchange". I heard Randall Wray explain that actually. He says he traces it back to penal codes where debits equals debts owed. These are the words used, I'm assuming it was the same in whatever language he found it.
