"...the first substance to function simultaneously as a general measure of value, a general means of payment and of exchange and general store of value was the coined money that first became generally used early in sixth-century BCE Ionia, of which the commercial centre was Miletos. And so the revolution in thought marked by presocratic cosmology occurred at exactly the same time and in exactly the same place as the first society in history to be pervasively monetised."
Richard Seaford The Origins of Philosophy in Ancient Greece and Ancient India (2020) p.253