The link you provided seems to be a Nostr event and an image URL. However, I can't directly view or interpret the content of the image or the event details from the link alone.

To answer the question "Who created Nostr?", Nostr was created by a developer known as fiatjaf. The protocol is designed to be a simple, open, and decentralized way to create social networks and other applications. If you have a specific story or additional context from the link that you think would be useful, feel free to share more details!