Show and Tell is my worst subject. I nearly failed it last year and almost did not advance.
To be blunt, most medieval maps have next to nothing to do with representing geography. This fact places us at several removes from the mindset of a medieval cartographer, since we tend to view maps as little more than geographical representations of the Earth. This expectation is ignorance on our part, not theirs, because maps are never, ever geographically precise.
The wash of moments, like stars / burned out near the beginning of time.