Mid '90's NE KS. We covered slavery quite a bit. It was noted to be the reason for the Civil War. We discussed slavery conditions, slave boats, auction block sales, families sold away from each other, the Underground Railroad, etc. We discussed Jim Crow, but only to touch on separate but equal as an intro to MLK and the Civil Rights movement.
We discussed the history of it. We touched on the racism of it during Jim Crow and Civil Rights, but not during pre CW time. We also didn't really dive in to the racism part. It was treated as a given.
The examination of our systems as a structure that continues to disadvantage minorities never came up. Thinking of that topic, I kinda think of it as I do the WWI and WWII mentions ITT in that it sounds so rough ridin' big, you probably can't do much with it in a high school class unless it's the entire class. That said, it should be introduced, IMO, as part of the Civil Rights discussion. I mean, when I was young, I had no idea what statistical differences some of our systems hold for minorities vs white. Racism just felt like a person to person thing. Like, some kids are racist, and that's stupid. I don't think the avg kid is mentally applying that forward in to our government, systems, and social infrastructures. It would be a good thing to get your average highschooler some of that info at a minimum.