Bitcoin is the world's leading digital currency. Invented in 2009 by Satoshi Nakamoto, Bitcoin revolutionized transactions and investments. Unlike traditional currencies, Bitcoin is not controlled by a central entity, providing freedom and privacy. With blockchain technology, all Bitcoin transactions are recorded in a secure and transparent digital ledger. Bitcoin's value is determined by volatile markets, attracting high-risk investors. Although controversial, many companies are starting to accept Bitcoin as payment. Altcoins, such as Ethereum and Litecoin, are also popular. Bitcoin has transformed the financial and technology industries, although regulatory challenges remain. As a promising digital asset, Bitcoin continues to be an important subject in the world of global finance.