All American students should be required to take a biography course featuring the patriots of the American Revolution every year. Just reading the Founding Fathers’ quotations is quite illuminating of their thought processes, education and moral values.
Even in the ‘70s at what was considered a good suburban public school, the level of education in US history was rather poor. I tried to read and study up a lot more on my own, out of interest and also out of a sense that citizens ought to know a lot more than what was being offered in my high school.
With all the rabid liberalism and political correctness since then, I’d guess that few students learn even what was typical in my high school of that era. Yet, even then it was a rather weak coverage of the founders and the whole revolutionary period.