Where did you go to High School?
I graduated in 1988, and we Western Civ (full year) sophomore year, U.S. (full year) junior year, and while no history per se was required senior year, government and economics very much built upon the previous two years.
The two year long courses went deeper into what had already been taught in year-long courses in 7th and 8th grade, respectively.
Eastern Washington state.