The Bureau of Indian Affairs was organized in 1824 as part of the "Department of War," since a large portion of US interaction with the Natives had been in the realm of conflict, due to increased white settlement.
President Carter's foreign policy I believe it was human rights.
A "Second Reconstruction", sparked by the civil rights movement, led to civil-rights laws in 1964 and 1965 that ended legal segregation and re-opened the polls to Blacks. The laws and constitutional amendments that laid the foundation for the most radical phase of Reconstruction were adopted from 1866 to 1871
