I'd imagine personal rather than national. Plenty of Americans on this board comment on early periods of history. I'm not American, but I have no interest in early periods of history.Is it more American thing that they are more into modern history and less into ancient history?
It's just a personal thing. I find the 19th century, and the very early 20th century, fascinating because of the complete upheaval in ideas, science and so on. Europe's change during that period was chaos in terms of its speed. That's European centric, but then what's wrong with that.