At some point in the Avatar Universe there weren't any benders. The Avatar is the bridge from the Physcial World to the Spirit World. It is also the Avatar's duty to maintain peace and order to both worlds.The first benders learned the elements from the animals, spirits, and environment around them. The first waterbenders learned from the moon (Tu and La). The first earthbenders learned from the Badgermoles. The first firebenders learned from the dragons. The airbenders learned from the Sky Bisons. If Korra is the current Avatar, then Aang, then Roku, then Kyoshi, then Kuruk, then Yangchen, then some guy from the Fire Nation, then many more before him then who was the very first Avatar and what nation did he or she come from? I'm very curious to know. Please leave comments, questions and conclusions. THANK YOU!!!