Numismatics ("coin"; from the, "to use according to law"), is the scientific study of currency and its history in all its varied forms. While numismatists are often characterized as students or collectors of coins, the discipline also includes a much larger study of payment media used to resolve debts and the exchange of goods. Lacking a structured monetary system, people in the past as well as some today lived in a barter society and used locally found items of inherent or implied value. Earl… (More on Numismatics)