I know its a kids show, but personally most of the shows I watch are still kids shows. Anyway, I did some research and found that the show uses Inuit, Japanese, Chinese, Korean and Tibetan language, philosophy, religion and culture to flesh out the characters and places in the show. Even the fighting in the show is based on real world Chinese martial arts.
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Yakko Warner: We protest you calling us "little kids". We prefer to be called "vertically-impaired pre-adults".
Yakko: We'd love to stay here and count our brain cells as they die one-by-one.
Dot: But we can't.