As volcanic eruptions and earthquakes occasionally remind us, the earth beneath our feet is constantly on the move.

Continental plates only move around 1-4 inches per year, so we don’t notice the tectonic forces that are continually reshaping the surface of our planet. But on a long enough timeline, those inches add up to big changes in the way landmasses on Earth are configured.

Today’s map, by Massimo Pietrobon, is a look back to when all land on the planet was arranged into a supercontinent called Pangea. Pietrobon’s map is unique in that it overlays the approximate borders of present day countries to help us understand how Pangea broke apart to form the world that we know today.

Incredible Map of Pangea With Modern-Day Borders