Bitcoin is the first cryptocurrency introduced by Satoshi Nakamoto in 2009. Based on blockchain technology, Bitcoin enables peer-to-peer transactions without intermediaries like banks. Its main advantages are decentralization, high security, and a limited supply of 21 million coins. Bitcoin is often considered "digital gold" because of its tendency to increase in value over the long term. In addition to being a payment tool, Bitcoin is also used as an investment instrument. Although its volatility is high, interest in Bitcoin continues to grow globally. Regulatory developments and the adoption by major institutions also influence the price and the future of Bitcoin in today’s modern digital financial world.