Board Thread:Speculation House/@comment-27027823-20150928204654/@comment-4010415-20151014034756

In order to have a world map of Remnant, the people would have had to explore the entire world.

We're not the only ones who have access to the world map. Oobleck has a world map on his wall, and Port has several maps and a globe in his classroom.

Humans have gone over and mapped the entire world.