Although there have been many iterations of Batgirl in DC comics over the decades, the most definitive version is Barbara Gordon, who made her comic debut on November 29, 1966. That makes today the 50th anniversary of Batgirl (in a way, since characters like Kathy Kane and her niece Betty were also Batgirl in the comics prior to Barbara).

To celebrate the anniversary of one of the most important sidekicks in the Bat Universe, has put together an awesome infographic of every version of Batgirl from 1956 (Kathy Kane) up until 2015’s DC Superhero Girls, a television show aimed at young girls.

Pretty cool!