Native American civil rights criticize the idea of "American progress" and to express pride and faith in the identities of their own cultures. Charles Eastman, a Mdewakanton and Wahpeton Sioux and physician, published books and articles in English for American people to show that it is not savage that Native people celebrate what Mourning Dove called the "ancient way". In 1902, Gertrude Bonnin told the "Atlantic Monthly" that the traditions of her tribe, the Yankton Dakota Sioux, were not only equal to European Americans, but that their values were superior. In 1903, Charles Eastman, a Santee Dakotan and Native representative, was requested by Theodore
Native American identity in the United States "the question of who is 'more' or 'most' Indian may draw people away from common concerns." In some cases, one's opinion about one's self is sufficient to define one as Indian. One can often choose to identify as Indian without outside verification when filling out a census form, a college application, or writing a letter to the editor of a newspaper. A "self-identified Indian" is a person who may not satisfy the legal requirements which define a Native American according to the United States government or a single tribe, but who understands and expresses her own identity as Native American.