Bitcoin, the controversial digital currency, was invented by the mysterious Satoshi Nakamoto who published the invention on 31 October 2008 in a research paper called "Bitcoin: A Peer-to-Peer Electronic Cash System", which was implemented as open source code and released in January 2009.
From January 2009 to January 2010, bitcoin users were mainly cryptography fans who were sending bitcoins for low or no value and there were no exchanges or market. Between February 2011 and April 2011, bitcoin took parity with the US dollar (according to Wikipedia).
Read more at
http://www.econotimes.com/Bitcoin-Price-Volatility-Consistently-Declines-Over-The-Years-137506#GMydMAFB4wo8w8g9.99
