In the Early Bronze Age of Europe, ancient people used bronze objects as an early form of money, even going so far as to standardize the shape and weight of their currency, according to a study published January 20, 2020 in the open-access journal PLOS ONE by Maikel H. G. Kuijpers and Catalin N. Popa of Leiden University, Netherlands.
Click here for original story, On the origins of money: Ancient European hoards full of standardized bronze objects
Source: Phys.org