I'm not sure exactly how old Iwaku is, but the community that makes up Iwaku has existed for years (and has come from several sources). Before Iwaku, I came from a place called Moonwings. Before Moonwings... Honestly, I don't know what came before that. Can't remember. I do know, that it all started at a small corner of the internet called Sailor Moon Universe. I don't think there are many here that remember that place, but I know there are a few. Diana for one, and I think Ocha.
PROTIP: Diana used to be known as "blueberryprincess", and Ocha was... Enchanted something-there-other. Damn, my memory is fudging up again...
EDIT: Holy crap, I've known Diana for over 15 years. Now I feel really old...