Cardano is a public blockchain platform. It is open source and decentralized, with consensus achieved using proof of stake. It can facilitate peer-to-peer transactions with its internal cryptocurrency Ada.
Cardano was founded in 2015 by Ethereum co-founder Charles Hoskinson. The development of the project is overseen and supervised by the Cardano Foundation based in Zug, Switzerland.
Hoskinson left Ethereum after a dispute with its co-founder Vitalik Buterin; Hoskinson wanted to accept venture capital and create a for-profit entity while Buterin wanted to keep it running as a nonprofit organization.