We Shall Live Again: The 1870 and 1890 Ghost Dance Movements as Demographic RevitalizationThis study of the 1870 and 1890 Ghost Dance movements among North American Indians offers an innovative theory about why these movements arose when they did. Emphasizing the demographic situation of American Indians prior to the movements, Professor Thornton argues that the Ghost Dances were deliberate efforts to accomplish a demographic revitalization of American Indians following their virtual collapse. By joining the movements, he contends, tribes