American Girl=educational?

Who knew the American Girl series could be educational?  Maybe everyone did but me already.  I had crossed it off as not being for us, but we checked out Kitt Kitridge (spelling?) because Clara wanted to, and it was educational as well as entertaining!  It is about a girl in the Depression Era.  And, it is rated "G."  Wow!  And come to find out there are others in the series that sound just as educational!  There is "Felicity" about a girl growing up during the American Revolution, "Samantha" about a girl growing up during the turn of the century, and "Molly" about a girl growing up during WWII.  We're checking out "Felicity" next since we have studied American Revolution era.  I guess one never knows what one might be missing...