What year did star doll start in

I think it was made in 2005. I think it was made in 2005 or 2004...I don't know...It used to be called PaperDoll Heaven, but they changed it to Stardoll. PaperDoll Heaven exist right now too! But when I'm looking to Stardoll and PaperDoll Heaven I fell sad...I don't know why! I just feel sad...