We often use maps of the world to encourage people to discuss perspective – all maps are saying something but often it is not what we think they are saying. You have to know what the cartographer is trying to depict to really understand the map. Also as time moves on we learn more and can ask questions behind why we might have done things a certain way in the past eg for political reasons. Here’s a fun clip from a TV episode that looks at this conundrum.
Interestingly whilst on a recent flight I read about “trap streets” – apparently cartographers for centuries have misnamed streets or made up new ones for the sole purpose of catching those who copied or reprinted maps as their own. The London A-Z was reported to have more than 100 trap streets by the mid 2000’s. This you will be pleased to know is now a dying art!