how many country of the world now accept btc?
Japan has legalized bitcoin.China and russia have decided to regulate bitcoins instead of trying to ban it.South korea is very much friendly to bitcoin and soon it may legalize bitcoin.India has taken a sudden u turn and decided to announce bitcoin as legal soon.
Only Japan has legalized the bitcoin officially, but many other countries like Rusia, Denmark, India are thinking to legalize the bitcoin as currency, because this currency has gotten popularity across the world. I think, if bitcoin continuous his popularity with such speed, then most countries of the world will compel and recognize bitcoin as a currency officially.