SushiSwap was launched in August 2020 as a fork of UniSwap. SushiSwap is a decentralized exchange built on the Ethereum blockchain that allows users to trade cryptocurrencies in a trustless and decentralized way. It utilizes a liquidity pool model where users can provide liquidity to the platform in exchange for a share of the trading fees generated by the platform. It also has a built-in token, SUSHI, that can be used to govern the platform and earn rewards for providing liquidity.