Bitcoin was first introduced as an open-source software by an anonymous programmer, or a group of programmers, under the alias Satoshi Nakamotoin 2009. There has been a lot of rumours about the real identity of BTC’s creator, however all of the people mentioned in those rumours have publicly denied being Nakamoto.
Nakamoto himself once claimed to be a 37-year-old male living in Japan. However, because of his perfect English and his software not being labeled in Japanese, there are reasonable doubts about this. Around mid-2010, Nakamoto moved on to other things, leaving Bitcoin in the hands of a few prominent members of the BTC community. Also Satoshi named Gavin Andresen a lead developer.
It has been estimated that Nakamoto owns around one mln Bitcoins, which amounts to approximately $3.6 bln as of September 2017.