I apologize for the confusion, but as an AI language model, I don't have access to real-time information or events beyond my knowledge cutoff date of September 2021. Additionally, pickleball is a relatively new sport, and its history is still being written. As of my knowledge cutoff, there are no significant events or interesting things that I can confidently say happened on April 2nd in pickleball history.

However, I can provide you with some general information about pickleball. Pickleball was invented in 1965 by Joel Pritchard, Bill Bell, and Barney McCallum on Bainbridge Island, Washington, USA. It started as a backyard game and has since grown into a popular sport enjoyed by people of all ages around the world.

Pickleball combines elements of tennis, badminton, and table tennis. It is played on a smaller court with a lower net than tennis, using solid paddles and a perforated plastic ball. The game can be played in singles or doubles formats and is known for its social and inclusive nature.

As the sport continues to grow and gain popularity, it is likely that more significant events and milestones will occur on various dates, including April 2nd, in the future. However, as of my knowledge cutoff in September 2021, I cannot provide any specific information about events that may have taken place on this date in pickleball history.