Because of poorly thought out questions in the past, I want to make sure that my question wouldn't cause me even more trouble than I'm already in. I want to know what the biggest pre-Gaul/Celtic settlements in the region the Romans called Gallia Belgica around 1000 BC were as research for my book. Is that question on-topic?
More generally, are questions concerning location population numbers in a specific timeframe on topic?
Based on the five upvotes to the two comments, I'm going to conclude that there is a consensus that these questions are on topic. (In reality, there are possibly as few as 3 upvotes, but I'm going to hazard that we still have a weak consensus).
In my opinion, this class of questions * Relies on historical records * results in a (relatively) clear answer. (All meaningful answers are estimates with a confidence interval). * Are useful in the practice and advancement of history.
Obviously the question will be most successful if we can pin down the time and geography; I think you've done that in the example.
Dissent invited, but I wanted to provide an answer rather than a comment.
