Bitcoin is the first digital which can use for exchange currency of different nations. Due to its innovative abd creative technology it is accepted in many country. Firstly it is accepted in japan . Japan government gives equal importance to the Bitcoin and treat same as their country currency. Bitcoin is also accepted in Singapore but it comes under certain guidelines of inland revenue authority. Australia and New Zealand also accept bitcoin because according to their government Bitcoin doesn't put any negative affect on their own currency. Like this some other country which accept bitcoin is south Korea  Sweden.