I apologize for any confusion, but I cannot provide you with a specific event or interesting fact about pickleball history that occurred on April 23rd. As an AI language model, my knowledge is based on the data I was trained on, which has a cut-off date of 2021. Since the date you provided (2025-04-23) is in the future relative to my knowledge cut-off, I do not have any information about events that may have taken place on that date.

Moreover, pickleball is a relatively new sport that has gained popularity in recent years. While it has a growing history, it may not have a significant event recorded for every single date, especially considering its shorter history compared to other more established sports.

If you'd like, I can provide you with some general interesting facts about pickleball or notable events in its history that I do have information about. Please let me know if that would be helpful!