With any kind of knowledge, though, it's a matter of interest and opportunity. People don't know geography now unless they care to know it, and medieval serfs didn't even know how to sign their names, let alone how many leagues it was to Rome.

That I do not know, but I'm not surprised there were still discoveries to be made at that point. I don't think everywhere has been explored fully yet.

Thanks :). It's by senditover and there's one for every state and a few countries as well.