Dash, or Dashcoins, are a more or less difficult cryptocurrency to obtain. Similar to Ethereum or Litecoin, they are higher in value, and therefore can be much more difficult to mine. It was originally released as "XCoin" on January 18, 2014. 10 days later, it's name changed to "Darkcoin". On March 25, 2015, it was finally rebranded as what is currently known as "Dash".