When did THORChain come out?

I'm curious, can you tell me when exactly did THORChain make its debut in the cryptocurrency world? I've been hearing quite a buzz about this decentralized liquidity protocol, and I'm eager to know when it first emerged onto the scene. It's important to keep track of the timeline of significant events in the crypto space, so I'm hoping you can provide me with the specific date or year of THORChain's launch.