the difference between a culture

What's the difference between ang-mor and Hokkien fairy tales?

Ang-mor fairy tales begin with: "Once upon a time..."
Hokkien fairy tales begin with: "Lim Peh ka li kong..."

from: http://www.talkingcock.com/html/jokexec.php?op=JokeView&lexicon=jokes&jcat=Weird%20Singapore