Linked from
The 9 pages that link to World map, each with the reason it gives.
Map projectionRelated: Every flat world map makes its projection’s global distortions visible.
EratosthenesRelated: Eratosthenes used geographical knowledge to produce a map of the known world.
Al-IdrisiRelated: Al-Idrisi organized inhabited lands into a mapped picture of the known world.
Hemispheres of EarthRelated: Map layouts use hemisphere boundaries to orient and group locations.