thousands of years ago, in fact most likely began almost simultaneously with human civilization.
The system of currency or money has undergone evolution, change of form both physically and conceptually from the beginning to the present, as described in the following points:
Barter system.
 The system of gold and silver coins as money.
Circulation of evidence of gold deposit as "banknotes" in place of gold and silver coins.
The banknote system, the result of a mutation from the proof-of-custody paper that the ruler specifies as money.
Electronic bookkeeping transaction system (cashless / electronic money).
Electronic bookkeeping systems deliver, exchange systems or transactions to a remarkable breakthrough of flexibility, speed, security, data accuracy and open a new era of transactions.