This document discusses the history of Native American reservations in the United States from their establishment in the 19th century to present day. It covers the forced relocation of tribes like the Omaha and Yankton Sioux to reservations, the introduction of Indian police, and efforts to assimilate Native American children through residential boarding schools that discouraged indigenous culture and traditions. The document also examines the introduction and spread of Christianity on reservations as well as current issues like health and healthcare facing Native American populations living on reservations today.