Star Trek and Star Wars owe each other quite a lot. George Lucas was a sci-fi fan from childhood, and Star Trek was one of his inspirations. Similarly, Star Wars helped inspire Paramount Pictures to bring the franchise back first as a movie and in sequel series. Similarly, Star Trek Day, the anniversary of the first episode's debut, shares a lot of its DNA with the "May the 4th" celebration among Star Wars fans. Still, anyone looking into the history of Star Trek Day should know that, like with most things in this franchise, it begins and ends with the Trekkies and Trekkers who love it.
Source：https://www.cbr.com/history-star-trek-day/
