Ngasekupheleni kwe-1950, u-Ivan Terence Sanderson, isazi sendalo saseMelika esithandwa kakhulu, wabelane nge-akhawunti enomdla malunga neleta ayifumana ku-Alan Makshir, injineli ebekwe kwiSiqithi saseShemya e-Aleutians ngexesha leWWII.
Xa u-Alan Makshir kunye neqela lakhe babenikwe uxanduva lokwakha indawo yokumisa, batshabalalisa iinduli ezimbalwa bengaqondanga baza bafumana amathambo abantu ngaphantsi kwentlenga ethile. Bafika kwindawo ekubonakala ngathi yindawo yokungcwaba abantu abaninzi, kuquka ukhakhayi namathambo amakhulu.
Ukusuka ezantsi ukuya phezulu, ukhakhayi olunye lwaluziintshi ezili-11 ububanzi kunye nee-intshi ezingama-22 ubude. Ukhakhayi oluqhelekileyo lwabantu abadala luziintshi ezisi-8 ubude ukusuka ngasemva ukuya ngaphambili. Ukhakhayi olukhulu olufana nolu lunokuba yipropathi yomntu omkhulu kuphela.
Ngokutsho kwengxelo enikwe kwileta, kwixesha elidlulileyo, izikhulu zazinomqolo wesibini wamazinyo kunye neeflatheads ezingenangqondo. Kwicala elingasentla lokakayi ngalunye, kwakukho umngxuma ohonjisiweyo, okrolwe kakuhle.
AmaMayya asePeru namaIndiya angamaFlathead aseMontana ayedla ngokucudisa ukakayi losana ukuze alunyanzele ukuba lukhule lube nde.
UMnu. Sanderson wafuna ubungqina obungakumbi emva kokufumana ileta yesibini, kodwa yaphinda yaqinisekisa ukurhanela kwakhe. I I-Smithsonian Institute yayibambe amathambo angaqondakaliyo, ngokwazo zombini iileta.
UMnu. Sanderson wayesazi ukuba i-Smithsonian Institution ingumnini wamathambo, kwaye wayexakiwe ukuba kutheni bengafuni ukwenza oko bakufumanisileyo esidlangalaleni. "Ngaba abantu abanakujongana nokubhalwa kwembali kwakhona?" wazibuza.
