I apologize for the confusion, but I couldn't find any significant events or interesting things that happened on March 13th in Pickleball History. As an AI language model, I don't have access to real-time information or future events beyond my knowledge cutoff date of September 2021. Additionally, Pickleball is a relatively new sport, having been invented in 1965, and its history is not as extensive as other sports. While the sport has gained popularity in recent years, there may not be a notable event that occurred on this specific date. If you have any other questions about Pickleball or its history, feel free to ask, and I'll do my best to provide you with accurate information based on my available knowledge.