On May 26 1959, Charlie Brown's sister Sally was born. Initially Charlie Brown doted on his baby sister, though she too became a thorn in his side as she grew up. Sally often pesters him for help with her homework. Charlie Brown stoically bears this, although sometimes he is able to let Sally dig her own holes without pulling him in with her. He occasionally firmly puts his foot down on truly unacceptable behavior, such as lying about taking a crayon from school or reading his letters.