$USDC
In its early days, USDT was known as "Realcoin" when it launched in 2014, before being renamed Tether later that same year. This initial name reflects the original idea: a "real" currency backed by a tangible asset.
Although USDC was designed as a financial tool in the crypto world, it has begun to be widely used in decentralized finance (DeFi) applications. Some projects offer rewards to users who lock USDC in their protocols, making it more than just a "stable" currency.
