Bitcoin and Ethereum are the two most well-known cryptocurrencies in the world. Bitcoin was introduced in 2009 as a decentralized digital currency that allows people to send and receive money without banks. It is often called “digital gold” because many investors use it as a store of value. Ethereum, launched in 2015, is more than just a cryptocurrency. It provides a platform for smart contracts and decentralized applications (DApps). While Bitcoin focuses mainly on secure peer-to-peer payments, Ethereum enables developers to build blockchain-based projects. Both cryptocurrencies have gained global popularity and play a major role in the growing digital finance ecosystem.