Bitcoin is the first and most well-known cryptocurrency in the world. It was created in 2009 by an unknown person or group of people using the pseudonym Satoshi Nakamoto. Bitcoin transactions are recorded on a public ledger called the blockchain, making it transparent and secure.

Bitcoin's decentralized nature and transparent blockchain technology have revolutionized the world of finance. Its impact on the global economy continues to grow, paving the way for new innovations in digital currencies and blockchain applications.