The movement known as the Ghost Dance first appeared around 1870... soon after the Union Pacific Railroad completed its first transcontinental run. .… - Peter Farb

The victory... was complete except for one final indignity. That was to Americanize the Indian... to exterminate the cultures along with the Indians. ...Orders went out from Washington that all male Indians must cut their hair short, even though many Indians believed that long hair had supernatural significance. ...Army reinforcements were sent to the reservations to carry out the order, and in some cases Indians had to be shackled before they submitted. ...attention of the Americanizers was concentrated on the Indian children, who were snatched from their families and shipped to boarding schools far from their homes... usually ... for eight years, during which time they were not permitted to see their parents, relatives, or friends. Anything Indian—dress, language, religious practices, even outlook on life... was uncompromisingly prohibited. ...They had suffered psychological death at an early age.

Wilhelm von Humboldt... stated that the structure of language expresses the inner life of its speakers: "Man lives with the world about him, principally, indeed exclusively, as language presents it."

What makes the Hohokam noteworthy is the development of irrigation works. The earliest... dates from some 2,000 years ago. ...They built dams that redirected the flow of water into irrigation canals, some of them... extending for more than twenty-five miles. ...They built flat-topped pyramids and ball courts, where they used rubber balls imported from Central America. The Hohokam may also have been the first to use the technique of etching with acid in their remarkable designs on marine shells.