There is so much of our history that we are never taught, or that is flatly taught wrong. And so many historians don't write about it because they are basically lazy, and it would require real work to research properly.
As just one example, I was reading a piece about Andrew Jackson the other day, for the post I was writing on the full-scale reproduction of the Parthenon in Nashville.
The article mentioned that Jackson, who was an infamous "Indian" fighter years before he became President , was the one who instigated the "Trail of Tears," which was the government-backed forced removal of the Cherokee, Creek, Choctaw and Seminole tribes from their native lands in the Southeast, and that his successor "finished the job."
While the statement started out true, it ended in a blatant falsehoid, because the Seminoles were driven into the swampland in Florida, and NEVER surrendered as a tribe. They remain the ONLY Native American tribe that never signed a treaty with the United States government.
Of course, the U.S. didn't honor its treaties with the tribes that did sign, which is also not typically taught in our history books.