I have never read a novel like this before, but that’s obvious since it is actually not a novel. (The clue is in the name.) But it has characters (well, a character), lots of historical figures, and a (very faint) narrative arc. And it’s pretty fun to read.
Initially it seems like a very tersely worded version of one of those books of random factoids. Just a succession of one- or two-sentence paragraphs stating more or less interesting historical facts. Like this: