I’m not sure what you’re referring to with “Has it ever happened?”

In Jainism, this kind of question is often asked about things like:

• Has any soul ever attained keval‑jnan (omniscience)?
• Has anyone ever become a Tirthankar in this current time cycle?
• Has total non‑violence or perfect conduct ever been fully practiced?
• Has ultimate liberation (moksha) ever been attained?

Please specify what “it” means in your question (for example: “Has anyone ever become omniscient?” or “Has complete ahimsa ever been practiced?”), and I can answer clearly from the Jain viewpoint.