We had our very first May the Fourth be with You Party in 2011. Yup, that was way before “May the Fourth be with You” was even a thing. If you check Wikipedia it says its very first occurrence was in 2011.
It was early April that same year, and I remember someone on the radio (I think NPR) mentioning that “May the Fourth” was coming up. They said that the date was a special day for Star Wars fans, and the radio crew sounded pretty amused at the idea. I got so excited I hollered out loud: THAT IS THE COOLEST THING EVER!!! (Deep breath!) WE HAVE TO THROW A PAAARTYYYY! (We had just celebrated “pi-day”, so the idea of throwing a Star Wars party was a small leap.)