Bitcoin is a cryptocurrency created in 2009 by an individual or group under the name 'Satoshi Nakamoto'. It is the first decentralized digital currency, meaning it is not controlled by any government or financial institution. Bitcoin relies on blockchain technology, which ensures transparency and security in transactions. Its popularity has increased in recent years as an investment tool, but it still faces challenges such as price volatility, legal regulations, and energy consumption. Some see it as the future of money, while others consider it a speculative tool. In any case, its significant impact on the world of economics and finance cannot be denied.