Uniswap exchange is a special place where people can trade digital money, like Bitcoin and Ethereum, without needing a big company to help. It's like a market, but it's all on the computer, and anyone can join.
Uniswap exchange started with a simple idea, but it changed how people trade cryptocurrencies. It made things more open and fair. However, there were some problems in the beginning, like high fees when the computer network was busy.