Transgender history
In the Americas prior to European colonization , as well as in some contemporary North American Indigenous cultures , there are social and ceremonial roles for third gender people , or those whose gender expression transforms , such as the Navajo "nádleehi" or the Zuni "lhamana" . 
<triplet> Navajo <subj> North American Indigenous cultures <obj> subclass of <triplet> lhamana <subj> third gender <obj> instance of