Ethereum is one of the world's leading cryptocurrencies, created in 2014 by Vitalik Buterin. In addition to being a digital currency, Ethereum offers a blockchain technology platform for developing decentralized applications (dApps). Its cryptocurrency, Ether (ETH), is used for payments, transactions, and execution of smart contracts. Ethereum supports smart contracts, allowing the creation of tokens, NFTs, and decentralized financial services (DeFi). With its upgrade to Ethereum 2.0, the platform aims to improve scalability, security, and sustainability. Ethereum is a leader in the blockchain development ecosystem, attracting investors, developers, and companies.