BITCOIN
           It is the cryptocurrency .It is basically a internet currency which is used for lot of work on internet.You used it for shopping,making money and etc.

History

          In November 2008 a paper was posted on internet named "Satoshi Nakamoto" titled "Bitcoin".In this paper the peer to peer network describe the electronic transaction without lying and trust.In 2009 the Bitcoin network exist with release of first open source bitcoin client and issuance of first bitcoin.