Bitcoin is a digital currency started in 2009 by a mystery figure named Satoshi Nakamoto, whose true identity is still unknown.There are also bitcoin ATMs, which allow for bitcoin to be exchanged for cash and vice versa, in London, Bristol, Brighton and Glasgow.Nearly a decade ago, Satoshi Nakamoto started mining the first bitcoins.The History of Bitcoin is a timeline that illustrates Bitcoin History from the very beginning all the way to present day.