Sailor Moon, known in Japan as Bisha_jo Senshi Sailor Moon, officially translated 'Pretty Soldier Sailormoon' or 'Pretty Guardian Sailor Moon'), is a media franchise created by manga artist Naoko Takeuchi. Fred Patten credits her with popularizing the concept of a team of magical girls, and Paul Gravett credits the series with 'revitalizing' the magical-girl genre itself. Sailor Moon redefined the magical-girl genre, as previous magical girls did not use their powers to fight evil, but this has become one of the standard archetypes of the genre. The story of the various metaseries revolves around the reborn defenders of a kingdom that once spanned the Solar System, and around the evil forces that they battle.
Contributions by Denelson83, WhisperToMe, and Aponar Kestrel.