L. Frank Baum,
The Marvelous Land of Oz — Chapter 3…
(1904)
“ It was built by a mighty and wonderful Wizard named Oz, and everything there is of a green color—just as everything in this Country of the Gillikins is of a purple color.""Is everything here purple?" asked Jack."Of course it is. Can't you see?" returned the boy."I believe I must be color-blind," said the Pumpkinhead, after staring about him."Well, the grass is purple, and the trees are purple, and the houses and fences are purple," explained Tip. "Even the mud in the roads is purple. But in the Emerald City everything is green that is purple here. ”
