The cultural assimilation of Native Americans was an assimilation effort by the United States to transform Native American culture to European–American culture between the years of 1790 and 1920. ... It established Native American boarding schools which children were required to attend.
The Dawes Act of 1887 (also known as the General Allotment Act or the Dawes Severalty Act of 1887), authorized the President of the United States to survey American Indian tribal land and divide it into allotments for individual Indians. ... (They had been excluded from the Dawes Act by their treaties.)
The Indian reservation system was created to keep Native Americans off of lands that European Americans wished to settle. The reservation system allowed Indian tribes to govern themselves and to maintain some of their cultural and social traditions.