People always talk about the oppression as ancient history, but it has been perpetual for many groups, not just limited to indigenous. Allotment ran until 1934, giving away native lands. After that they moved to Termination, where they tried to dissolve reservations and negate treaties.
Oh, yeah. I distinctly remember reading in my textbooks in the 4th grade how they were the pilgrims' good friends and agreed to move. This was in the late 90s. That same year, we went to the nearby burial mounds on a field trip. 8yr old me did not put a lot of thought at the time into how the lecturers and their exhibits seemed to depict all of this as happening in the blindingly distant past, as if they'd gone the way of the neanderthal. Adult me only started assessing how it had been presented a couple years ago when I was telling someone else about it, and I am still horrified.
Stuff like this flyer, I never saw until today. That the state of Tennessee is entirely the result of Americans setting up shop on land that still legally belonged to the Cherokee at the time, and that everyone just sorta went along with that except for, increasingly, the Cherokee, was not something I ever heard until I was doing some semi-related reading on my own at the start of this year.
I literally live in this area.