hmm... well, physics certainly does have a history, and it's useful to know something about that history, but as a rule, physicists tend not to care about it in the sense that a historian would. That is, the details of when certain experiments were performed or when certain papers were published wind up being less important than the methodology and results of the experiments/papers themselves. So a question that just asks about the dates when certain things happened, or the order in which they happened, is probably off-topic here, but asking about the actual physics work that has been done in a particular area should be fine.
To provide an example (not the greatest), asking "What events constitute the November Revolution?" is not as good of a question as "How did the experiment that discovered the $J/\psi$ meson work?" (Of course both of these are well documented on Wikipedia and elsewhere.) Or, "When was WMAP first proposed?" is not as good as "What made WMAP so much better than previous CMB probes?" (although that last one may actually be more engineering than physics)
I guess it's sort of hard to tell in general. If you wanted a yes-or-no type answer, I'd say just ask the question, maybe with a link to this thread, and we'll see if it gets closed. (I promise not to downvote)