User:SOTO/Forum Archive/The Reference Desk/@comment-4139960-20130612191751/@comment-26975268-20130613163435

We did know that, and it tells us that the prelude was released on 1 October. All we have for the novel is October. Even if the novel was released on 1 October too, I'd say we should use the prelude. Especially since the novel was more likely released afterwards, I agree with Czech and TD in that they debuted in the prelude.