World of Zhehon
Out of all the other races of the world one stands out as the most dominate by a significant amount. The population of the world is over 50% Human. Most communities and lands are ruled by humans, humans define the standard for good s and supplies, and humans are one of the most prolific of all races. While some may be able to produce faster, no other race is as adaptable and diverse as the human race.
The dominance makes the humans the basis for all others to be compared. This does not make humans better in any way; they are the standard used for the comparison. While many humans feel they are superior, most other races (to at least a small degree) feel the humans are the cause of the rise of the Darkness and the fading of the Essence of Magic. Whether this is true or not is unknown; humans have made themselves a commanding presence throughout the lands and little can be done to change the structure of the world.