The history of Chainlink Chainlink was proposed in 2017 and launched in 2019 by Steve Ellis, Ari Juels, and Sergey Nazarov to solve a problem known as the "blockchain oracle problem." Oracles are network entities that handle traffic from two incompatible systems. The Oracle blockchain issue affects all blockchains because they are essentially closed systems that cannot push or extract data from or to external systems.#RedSpetmber $LINK