Coins and Paper Money . Metals objects were introduced as money around 5000 B.C. By 700 BC, the Lydians became the first in the western world to make coins. Countries were soon minting their own series of coins with specific values. Sources from; The History of the Man-Made Invention of Money - ThoughtCo
cryptocurrency ˈkrɪptəʊˌkʌr(ə)nsi/ noun noun: cryptocurrency ; plural noun: cryptocurrencies ; noun: crypto-currency ; plural noun: crypto- currencies a digital currency in which encryption techniques are used to regulate the generation of units of currency and verify the transfer of funds, operating independently of a central bank. "decentralized cryptocurrencies such as bitcoin now provide an outlet for personal wealth that is beyond restriction and confiscation" Origin early 21st century: from crypto- + currency.