Excerpt from the article…

From 1778 to 1871, the United States signed some 368 treaties with various Indigenous people across the North American continent.

Concluded during the nearly 100-year period from the Revolutionary War to the aftermath of the Civil War, some 368 treaties would define the relationship between the United States and Native Americans for centuries to come.

The treaties were based on the fundamental idea that each tribe was an independent nation, with their own right to self-determination and self-rule. But as white settlers began moving onto Native American lands, this idea came into conflict with the relentless pace of westward expansion—resulting in many broken promises on the part of the U.S. government.
(see article for description of each treaty)