I have placed these dolls into year of release based on guidebooks and other research. Unfortunately, I have found that these dates do not always correspond with the copyright year printed on the box. Whenever possible, I have put all pertinent dates in the title of the doll, but each doll will only show up once in the menus. If you are having trouble locating a doll by year, check in the surrounding years as there may be a discrepancy.