Talk:History of the World of Avatar/@comment-3299085-20101227223518/@comment-74.104.136.230-20110108220608

She is deceased when Korra is already a master of 3 of the 4 elements. She would obviously have mastered Water bending earlier but the Avatar is unaware of their position until they are 16 years old (well Aang wasn't but that was dire...) So in theory Katara could have died after Aang but before Korra's 16th birthday. Additionally air bending is the only art she has yet to master. It took Aang a full year to master the 4 elements, and even then he was an incredibly weak fire bender and a less than adequate earth bender (as pointed out by himself and Toph during the Sozin's comet episodes) So in theory Korra would have been studying for at least a couple of years to master fire and earth bending, and is now seeking out her air bending master, so it may be as many as 20 + years after Aangs death.