Pandaren
Couched in myth and legend, rarely seen and even more rarely understood, the 
enigmatic pandaren have long been a mystery to the other races of Azeroth. The noble history of the pandaren people stretches back thousands of years, well before the empires of man and before even the sundering of the world.
Denizens of a wondrous and fertile land, the pandaren once labored under the oppressive thumb of a monstrous race of ancient warlords known as the Mogu. Through tenacity, diplomacy, and a unique form of unarmed combat, the pandaren staged a successful revolution that deposed the Mogu and established a pandaren empire that would prosper for thousands of years.
During the bleak days that preceded the sundering of the world, when demons flooded onto Azeroth and threw the entirety of the mortal realm into jeopardy, the last Emperor of the pandaren discovered a way to protect his land from the devastation. His deal with fate shrouded his land within an impenetrable mist for ten thousand years, but the nature of his transaction has left Pandaria haunted ever since...