The languages spoken by the pre-Columbian tribes of North America were many and diverse. Into the regions occupied by these tribes, travelers, traders, and missionaries have penetrated in advance of civilization, and civilization itself has marched across the continent at a rapid rate. Under these conditions the languages of the various tribes have received much study. Many extensive works have been published, embracing grammars and dictionaries; but a far greater number of minor vocabularies have been collected and very many have been published. In addition to these, the Bible, in whole or in part, and various religious books and school books, have been translated into Indian tongues to be used for purposes of instruction; and newspapers have been published in the Indian languages. Altogether the literature of these languages and that relating to them are of vast extent.

John Wesley Powell (1834-1902) was a U.S. soldier, geologist, explorer of the American West, professor at Illinois Wesleyan University, and director of major scientific and cultural institutions. He is famous for the 1869 Powell Geographic Expedition, a three-month river trip down the Green and Colorado rivers, including the first known passage by persons of European descent through the Grand Canyon. Powell served as second director of the U.S. Geological Survey (18811894) and proposed, for development of the arid West, policies that were prescient for his accurate evaluation of conditions. He became the first director of the Bureau of Ethnology at the Smithsonian Institution during his service as director of the U.S. Geological Survey, where he supported linguistic and sociological research and publications.