I was wondering what the criteria is for the creation of a sub-category in the main quiz topics. I thought it was probably if there were a number of quizzes on one particular subject it would warrant it's own heading, but I'm not sure if that works.... I must admit to having an ulterior motive for asking!

It depends in categories. For Television, in the alphabetical categories like A-C and such we usually don't create neww subcategories until there are at least 3 quizzes on that subject.

Thanks for the reply LadyM, that was much as I thought. Although the particular category I was looking at - People, Monarchs & Royalty, UK Royals in particular doesn't seem to work on the same criteria.