I apologize for the confusion, but I couldn't find any significant events or interesting things that specifically happened on April 30th in Pickleball history. As an AI language model, I don't have a comprehensive database of every single event that has occurred in the history of Pickleball, especially for a specific date like April 30th.

Pickleball is a relatively new sport that has gained popularity in recent years, and its history is still being written. While there may have been some local tournaments or events that took place on April 30th in the past, I don't have reliable sources to confirm or provide details about them.

However, if you're interested in learning more about Pickleball history in general, I can tell you that the sport was invented in 1965 by three fathers on Bainbridge Island, Washington, USA. They were looking for a fun activity for their families to enjoy during the summer, and they improvised the game using a badminton court, table tennis paddles, and a perforated plastic ball. The sport quickly gained popularity in the local community and eventually spread across the United States and beyond.

Today, Pickleball is enjoyed by millions of people worldwide and has become one of the fastest-growing sports in the United States. It has its own governing bodies, professional tournaments, and a passionate community of players and fans.