- 09.25.13 12:15 PM EDT
40 years ago, the world's first Comic-Con attracted 300 comic book fans. This year, it will bring around 125,000 people to San Diego, including some of the world's biggest celebrities, where they'll celebrate a broad swath of comics, TV, movies, and all things pop culture. Here's how it got there.
For more, check our history of CosPlay, Comic-Con's annual celebration of adults playing dress-up.