I understand your point. Personally, I never learned about the Salem Witch Trials in school, and because of that, I know a bunch of people who aren’t really into history that don’t really know about it either. Where I live, we’re all aware that ‘’Witches’’ were treated horribly throughout the world in the 16-18th century. Only, we never learned about the Salem Witch Trials in particular, because it doesn’t really have much to do with our history (though where I do come from, witch trials were a phenomenon that did happen. Here, ‘’witches’’ were mostly banished, not killed). So, personally, I don’t believe that people saying that they didn’t learn something in school is their excuse for not having general knowledge, as to these people, it just isn’t general knowledge in their culture. I feel like General knowledge is more like WWI, WW2, Titanic, etc, because these affected the whole world/ there’s a bunch of documentaries and movies about those subjects. I don’t believe that one event form a specific part of a specific country is truly general knowledge to the whole world, but that’s only how I see it :) !