Four maps. Different questions.
The stories
behind the maps.
Navigation, area comparisons, a simple coordinate grid: each projection makes choices. Explore where these ideas came from, how they found new uses, and what they can help you see.
Ancient roots
Plate carrée
An old grid finds a new job in digital imagery.
Read the story of Plate carrée →1855 · 1973
Gall–Peters
Equal areas, and a debate about how we see the world.
Read the story of Gall–Peters →Original explanations by MapStudy, with references beside the historical claims and Wikipedia links for further reading. The grid diagrams are drawn from our projection equations, not reproduced historical maps.