What is a digital currency?

Digital currency is a form of currency or medium of exchange that is electronically created and stored (i.e., distinct from physical, such as banknotes and coins). The Euro at its beginning was semi digital currency. [ citation needed] Some digital currencies, such as Bitcoin, are cryptocurrencies.

When did Bitcoin start?

Bitcoin was invented by Satoshi Nakamoto, ^[note 6] who published his invention on 31 October 2008 in a research paper called "Bitcoin: A Peer-to-Peer Electronic Cash system". It was implemented as open source code and released in January 2009.