This article accompanies the fable
Oz is China

L. Frank Baum's famous Wogglebug Map has the Emerald City at the center. But notice the NSEW compass point top right with East and West reversed. The controversy is solved if the map is viewed from the north instead of the south, i.e. from Beijing.

Also notice the proximity and alignment of the Yellow Brick Road and the river in Munchkin Country. The official flag of Oz followed the four-color quadrant design seen above.