If you want to keep anything these days you have to find some mention of the character in Google news archive search  I searched for Avatar the last airbender and then the name of the character  If you look through that and find any details about the character instead of just mentioning a name in a sentence or two then youll be able to save it  Otherwise its a futile effort  Sorry  The Wikipedia has changed the evil deletionists lunatics getting their way  You can find a wikia suited for it though httpavatarwikiacomwikiAvatarWiki More than two thousand articles there dedicated to every character and aspect of the series  The wikia is constantly growing in popularity over  million hits a month  Anything you are interested in you can find a wikia for or if not you can create a new one quite easily