I apologize for the confusion, but I couldn't find any significant events or interesting things that specifically happened on September 24th in Pickleball History. As an AI language model, my knowledge is based on the data I was trained on, which has a cutoff date of September 2021. Moreover, pickleball, although rapidly growing in popularity, is a relatively new sport, and its recorded history may not be as extensive as other well-established sports.

However, I can provide you with some general information about the history and growth of pickleball:

Pickleball was invented in 1965 on Bainbridge Island, Washington, by three friends: Joel Pritchard, Bill Bell, and Barney McCallum. They created the game as a fun activity for their families, using handmade equipment and simplified rules borrowed from badminton, tennis, and table tennis.

Throughout the late 1960s and 1970s, pickleball gained popularity in the Pacific Northwest. The first known pickleball tournament was held in 1976 at South Center Athletic Club in Tukwila, Washington.

In 1984, the United States Amateur Pickleball Association (USAPA) was formed to promote and govern the sport. The organization later changed its name to USA Pickleball in 2005.

Pickleball continued to grow steadily, particularly among older adults in retirement communities and recreation centers across the United States. In recent years, the sport has seen a significant surge in popularity, attracting players of all ages and skill levels.

Today, pickleball is played in all 50 states and many countries worldwide. The sport continues to evolve, with professional tournaments, endorsement deals for top players, and increasing media coverage.

While I couldn't find a specific event for September 24th, the overall history and growth of pickleball is a testament to the sport's appeal and the dedication of its players and advocates.