I don't think that there are people who know this for sure, he is the founder of the most popular coin - btc but there are so many versions who is he and what country he is from that i don't know whom to believe.
The fact would remain that probably we may never know who is he whether a person or a company or group of institutions etc . Nothing is clear and to which country it can belong to is also a question . But it has revolutionise the world as something which could not be thought is being created .