History education is often slanted to the preferences of the instructor. I challenge most of you to question their kids about their last completed history course and see how far it went. Often the instructor gets mired down in what interests them many times never getting to the 20th Century or much further than the Civil War. That is why many kids don't know much about Mexican history, or World War I or World War II, korea or Vietnam.
Ouch! You must have been in my high school history class. According to the time spent on it, the most important event in US history was the Seneca Falls convention for women's rights in 1848. It got more time than WW I and WW II combined.
I waited until six or eight weeks into the course, after giving him an atta-boy for the initial selection of the course, and the I asked him to rate the course and instructor.
He replied, "Well dad, most of the class is finding it fairly tough, but since I have spent my life sitting at the dinner table with you, I have found it mostly just basic review.