“ Rumours of a coming Indian Messiah who should sweep away the whites, and Indian dissatisfaction at the sale of their lands, created such great unrest in Dakota in 1880-1890 that it was determined to arrest Sitting Bull as a precaution. ”

“ He gained great influence among the reckless and unruly young Indians, and during the Civil War led attacks on white settlements in Iowa and Minnesota. Though he had pretended to make peace in 1866, from 1869 to 1876 he frequently attacked whites or Indians friendly to whites. ”