kanzenshuu.com

VBOd0 TIL Akira Toriyama originally planned to end Dragon Ball after the dragon balls were collected, which happened in chapter 19. Dragon Ball lasted 519 chapters.
a8MnJ TIL Akira Toriyama's biggest reason for Goku's hair going blond when he went Super Saiyan was to save work for his assistant whose time was always taken up by filling in Goku's black hair.
7BA7 TIL that Akira Toriyama, creator of Dragon Ball Z, never wrote down background notes for characters or for the series. In fact, he actually admitted forgetting there was a Super Saiyan 2, he drew Goku transforming straight from Super Saiyan 1 to 3.