When did ENS launch?

Can you tell me, if you know, when exactly did the Ethereum Name Service, or ENS, first become available to the public? I'm curious to understand the timeline of this important development in the cryptocurrency and blockchain space, as it has played a significant role in enabling human-readable addresses and names for various decentralized applications and services. If you have any additional information about the launch, such as any notable events or milestones that occurred around that time, I would be very interested to hear about those as well.