[ That could only mean one thing, and he's confident in the conclusion he comes to because, well, it was his own thoughts they were speaking of. ] The calendar system. I take it to mean that you and I do not share similar origins. [ Or else why would it be phrased like that. ]
[ He nods. ] I will be glad to share any information I can. For literature, I am unaware of what is stocked by the library at this time, though that is easily remedied.