Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  He Korero: I tapaina te ingoa o te mate ki a Harry Klinefelter, i te tau 1942 i mahi tahi ai ia me Fuller Albright me E. C. Reifenstein i te Massachusetts General Hospital i Boston, Massachusetts, a i whakaahua tuatahihia i taua tau ano. Ko te kaute i tukuna e Klinefelter i mohiotia ko te mate Klinefelter i te mea ko tona ingoa i puta tuatahi i runga i te pepa i whakaputaina, a kaore ano kia whakamahia te dysgenesis tubule seminiferous. I te whakaaro ki nga ingoa o nga kairangahau e toru, i etahi wa ka kiia ko te mate Klinefelter-Reifenstein-Albright. I te tau 1956 i kitea ko te mate Klinefelter te hua o te chromosome taapiri. I kitea e Plunkett rāua ko Barr te tinana chromatin ira i roto i ngā pūtau o te tinana. I whakamaramatia tenei hei XXY i te 1959 na Patricia Jacobs me John Anderson Strong. Ko te ripoata tuatahi i whakaputaina mo te tangata me te karyotype 47,XXY na Patricia Jacobs me John Strong i te Western General Hospital i Edinburgh, Scotland i te 1959. I kitea tēnei momo i roto i tētahi tāne e 24 tau te pakeke, he tohu o te KS. I whakaahuatia e Jacobs tana kitenga o tenei aneuploidy chromosome tangata tuatahi kua ripoatahia, i roto i tana korero mo te Tohu Maumahara a William Allan i te tau 1981.  Patai: I tehea tau i whakamaramahia ai e Patricia Jacobs raua ko John Anderson Strong te chromosome kia kiia ko XXY?
Ko te tau 1959