the one who made Bitcoin was Satoshi Nakamoto in 2009. The name is also associated with the open source software he designed, and also uses a peer-to-peer network without centralized storage or a single administrator where the US Treasury calls bitcoin a currency decentralized. Unlike currencies in general, bitcoin is not dependent on trusting the main publisher.
Bitcoin uses a database that is distributed and spreads to nodes from a P2P network to transaction journals, and uses cryptography to provide basic security functions, such as ensuring that bitcoin-bitcoin can only be spent by people owning it, and never to be done more from one time.
The design of Bitcoin allows for anonymous ownership and wealth transfer. Bitcoin - bitcoin can be stored on a personal computer in a wallet file format or saved by a third party wallet service, and despite all that Bitcoin - bitcoin can be sent via the internet to anyone who has a Bitcoin address. The peer-to-peer bitcoin topology and the lack of a single administration make it impossible for authorities, any government, to manipulate the value of bitcoin - bitcoin or cause inflation by producing more bitcoin.
Bitcoin is one of the first implementations called cryptocurrency, first described by Wei Dai in 1998 in the cypherpunks mailing list.