it's sad that it happened that way. >> reporter: charles holt wasn't alone. in fact, his story is only one representing a shameful chapter in american history. from 1907 through the 1970s more than 60,000 americans were sterilized because they had, quote, unfit human traits. it was called eugenics. the goal -- breed out those considered to be a burden on the rest of society and make, quote, better human beings tomorrow. 33 states had eugenics programs at one time or another supported by some of the nation's most respected doctors and social workers. even the supreme court approved it. oliver wendell holmes wrote in one 1927 case, three generations of imbeciles are enough. in north carolina, anyone, a parent, teacher, neighbor, could ask the state eugenics board to have someone sterilized. some victims were developmentally disabled living in institutions. records show others were living at home, forced to go under the surgeon's knife because they were paupers or because they were blind or deaf or had syphilis. >> to be sterilized if you were sexually promiscuo