From 1954 until 2011 the Comics Code Authority exercised control over what could and couldn’t be in comic books. The first version of the code was one of the most restrictive content regimes U.S. media has ever known, banning subject matter such as sex, drugs, and supernatural elements such as werewolves and vampires. The Code was revised in 1971 and 1989, before slowly fading away after 2001 and then being wholly abandoned by 2011. The Comics Code Authority seal is now, ironically, owned by the Comic Book Legal Defense Fund.