. . . "Various"@en . . . "DC Database:ParentPage/Justice League"@en . "If you are going to buy comic books for your child, remember that most comic books are not for kids anymore. They are written for adults. Most comic books published by DC have a handy rating system on the cover to determine whether or not they are appropriate. If you're not sure, you should probably read the comic book for yourself before giving it to your child. Who knows? You might discover that you enjoy it too!"@en . . "Monthly publication 1960-present"@en . . . "The Justice League of America are Earth's greatest heroes. It is a team made of the most popular/powerful characters published by DC Comics. They worked together for the first time to handle a threat that none of them could handle individually. Following this encounter, they decided to build a team with their own headquarters. Their membership has expanded over the years to include most of the heroes in the DC Universe in some capacity."@en . . . "20"^^ . "superhero action"@en . . . . .