mar 3, 1871 - Indian Appropriations Act
This Act specified that no tribe thereafter would be recognized as an independent nation with which the federal government could make a treaty. (From 1607 to 1776, at least 175 treaties had been signed with the British and colonial governments, and from 1778 to 1868, 371 treaties were ratified the US government.) All future Indian policies would not negotiated with Indian tribes through treaties, but rather would be determined by passing Congressional statutes or executive orders. Marking a significant step backwards, the act made tribal members wards of the state rather than preserving their rights as members of sovereign nations.
Added to timeline:
Destruction of indian way of life