Cardano (ADA) is a decentralized, proof-of-stake blockchain launched in 2017 by Ethereum co-founder Charles Hoskinson. Named after Ada Lovelace, its native token, ADA, facilitates transactions and governance. Cardano emphasizes scalability, sustainability, and peer-reviewed research, using the Ouroboros consensus mechanism. It supports smart contracts and dApps, competing with Ethereum. Recent upgrades, like the 2024 Chang hard fork, enhanced on-chain governance. As of June 2025, ADA trades around $0.62-$0.69, with a market cap of ~$25 billion, ranking #11. Despite volatility, whale accumulation and DeFi growth signal potential. Cardano’s roadmap aims for self-sustaining governance in the Voltaire era.