Cardano was founded by Charles Hoskinson, a cryptocurrency entrepreneur and mathematician, in 2015. Hoskinson previously co-founded Ethereum but left due to disagreements about its commercial direction. He established IOHK (Input Output Hong Kong), a blockchain infrastructure company that leads the development of Cardano alongside the Cardano Foundation and Emurgo. The project was named after Gerolamo Cardano, an Italian Renaissance mathematician. The development team emphasizes academic rigor and peer-reviewed research, with the Ouroboros consensus protocol being the first blockchain protocol to achieve formal verification through academic peer review.

Cardano's development follows a phased approach with distinct eras. The foundation was laid in 2015 when IOHK was established and the project announced. The Byron era (2017-2020) enabled basic transactions with the mainnet launch in 2017 and the Shelley era (2020-2021) brought decentralization through staking. The Goguen era (2021-2022) introduced smart contracts and native tokens. The Basho era (2022-2023) focused on scaling and sidechains. The current Voltaire era (2023-present) implements on-chain governance and treasury systems. Major partnerships have included the government of Ethiopia for identity management solutions and various DeFi protocols building on the platform.

Cardano operates on its own native blockchain using the Ouroboros proof-of-stake consensus mechanism, which was developed through academic research and peer review. Unlike many blockchains that use Ethereum Virtual Machine compatibility, Cardano developed its own smart contract platform using Plutus, a programming language based on Haskell. The native token standard allows assets to exist directly on the blockchain without needing separate smart contracts like ERC-20 tokens on Ethereum. The platform employs a layered architecture separating computation from settlement, and implements Voltaire governance for decentralized decision-making. Research papers published through IOHK have established the scientific foundation for the protocol's security properties.

Cardano's native token ADA has a maximum supply of 45 billion tokens, all created at genesis with no additional minting. The total supply was distributed through the initial token sale where about 25.9 billion ADA went to early investors and the remaining 19.1 billion went to IOHK, the Cardano Foundation, and Emurgo. Staking rewards are distributed from transaction fees and a portion of the token reserve, creating an incentive mechanism for network security. The token operates as the medium of exchange for transaction fees and serves as staking collateral. Unlike inflationary cryptocurrencies, ADA maintains a fixed supply model, though the reserve gradually releases staking rewards over time.

Cardano operates under a decentralized governance model with the Voltaire era bringing on-chain governance capabilities. Decisions are made through a treasury system funded by transaction fees and token reserves, allowing the community to vote on project funding proposals through the Catalyst platform. Stakeholders can delegate their ADA to pools and participate in governance voting. The three entities IOHK, Cardano Foundation, and Emurgo maintain different roles in development, ecosystem coordination, and commercial adoption respectively. The governance structure aims to transition from the current administrative model to full community-driven governance, with proposals for parameter changes, protocol upgrades, and project funding decided by token holder voting.

Cardano supports multiple use cases including decentralized finance applications, non-fungible token minting and trading, and enterprise blockchain solutions. The platform hosts various DeFi protocols for lending, borrowing, and decentralized exchanges. The Djed stablecoin provides algorithmic stability backed by ADA reserves. Government and enterprise partnerships have emerged, including Ethiopia's national identity management system using Cardano blockchain. The Atala PRISM identity solution enables decentralized identity management. NFT marketplaces and gaming applications have been built on the platform. Additionally, Cardano's research-focused approach has attracted academic partnerships and institutional interest in its blockchain infrastructure for various sectors including supply chain tracking and financial services.