words across a sentence. Much of his research in the last two decades of the twentieth century was devoted to the development of syntactic models that could explain why these properties cluster. Hale's ideas initiated an important research program, still pursued by many contemporary linguists. In 1960, Hale's recording of a short text from one of the few remaining native speakers of the Diyari language (spoken in northern South Australia) was the first research by a professional linguist into that language. Hale took care to educate native speakers in linguistics so they could participate in the study of their languages. Among his students are the Tohono O'odham linguist Ofelia Zepeda, the Hopi linguist LaVerne Masayesva Jeanne, Navajo linguists Paul Platero, MaryAnn Willie, and Ellavina Tsosie Perkins, and Wampanoag linguist Jessie Little Doe Baird. Hale taught every summer in the Navajo Language Academy summer school, even in 2001 during his final illness. In 1990 he was elected to the National Academy of Sciences. Hale championed the importance of under-studied minority languages in linguistic study, stating that a variety of linguistic phenomena would never have been discovered if only the major world languages had been studied. He argued that any language, whether it has a hundred million native speakers or only ten, is equally likely to yield linguistic insight. Hale was also known as a champion of the speakers of minority languages, and not just of their languages, for which his MIT colleague Noam Chomsky called him "a voice for the voiceless". Linguistic Society of America In 1994, Hale served as the president of the Linguistic Society of America. At the society's annual meeting in 1995, Hale delivered a presidential address on universal grammar and the necessity of linguistic diversity. Hale was also appointed to the LSA's Edward Sapir Professorship in 1995. In May 2003, after Hale's death, the LSA's executive committee established a professorship in field methods in his name for the biennial Linguistic Institutes. The Ken Hale Professorship was established to address the need for documenting and preserving endangered languages, and to make courses available that prepare linguistics students to investigate poorly documented endangered languages that may not be offered in their home institutions. In October 2016, the LSA launched a fellowship in honor of Hale to be awarded to a graduate student attendee of the Linguistic Institute pursuing a course of study in endangered language documentation. The first Ken