With their dynamic heroines and action-oriented plots, many credit "Sailor Moon" for reinvigorating the magical girl genre. After its success, many similar magical girl series, including "Magic Knight Rayearth", "Wedding Peach", "Nurse Angel Ririka SOS", "Saint Tail", "Cyber Team in Akihabara" and "Pretty Cure", emerged. "Sailor Moon" has been called "the biggest breakthrough" in English-dubbed anime until 1995, when it premiered on YTV, and "the pinnacle of little kid "shōjo" anime." Cultural anthropologist Matt Thorn said that soon after "Sailor Moon", "shōjo" manga started appearing in book shops instead of fandom-dominated comic shops. The series are credited as beginning a wider movement of girls taking up "shōjo" manga. Canadian librarian Gilles Poitras defines a generation of anime fans as those who were introduced to anime by "Sailor Moon" in the 1990s, saying they were both much younger than other fans and were also mostly female.