How did Akira Toriyama get the idea of making DragonBall?

Akira Toriyama made his work Dragon Ball based on martial arts(also characters can use powers like blasting away planets etc). The main character is Son Goku, whos name is based on Sun Woo Kong, a ape character from Chinese novel Jurney to the West...Also Goku can be transformed int the ape...Goku's human for is much based on famous martial artist Bruce Lee, which moves Toriyama perfered...Toriyama also noted that he love 1001 Dalmatian Disney carton, saying that drawing of that cartoon and animation style is great...So for record making any good manga or comic need time research, and reading books, manga's and watching movies...