Bitcoin ($BTC) is the most famous and valuable cryptocurrency in the world. It was created in 2009 by an unknown person or group of people under the name "Satoshi Nakamoto" [1].

The main features of Bitcoin are:

- *Decentralization*: Bitcoin is not managed by any government or financial institution [1]

- *Encryption*: Advanced encryption techniques are used to protect transactions and data [1]

- *Digital Money*: Bitcoin can be used as a means of payment online [1]

- *Investment*: Bitcoin is considered a popular investment tool [1]

Bitcoin is a pioneer in the field of cryptocurrencies, with a large market value and significant influence on global financial markets [1].