The first incarnation of "Bat-Girl," was Betty Kane, as the sidekick to Batwoman back in 1961. They were the ones who always wore purses and stressed about boy-girl stuff. In 1964 they were dropped and Barbara Gordon the daughter of Gotham's Commissioner Gordon, became the next Batgirl. In 1988, DC retired Batgirl, not because they're idiots, but because Alan Moore's Joker put a bullet in her spine. Barbara then became Oracle, the IT chic behind the heroes. In 1999 Cassandra Cain, Asian hotty assassin, becomes Batgirl but with no mouth in her costume. ... (don't ask.)