At first glance one might think that there are an infinite number of good topics for ChronoTrivia. Alas, it is not the case. While the first two sets of ChronoTrivia have 18 categories, and there will be more in other editions, the list is not endless.
So, if you think of a category that we have not used, here is what you can do about it. Write us at the address below telling about your list; include at least a dozen examples (preferably 25 or more), and include the references you used.
We will acknowledge your letter, and, in the event that we use your idea, we will include your name in the stack, and send you (free) the edition of ChronoTrivia that uses your idea.
Here is our address:
We are really looking forward to your input. It makes writing these a lot more fun when we can correspond with folks who like them as we do.