The idea that the world maps are wrong — all of them — is hardly controversial. It’s a mathematical fact that turning a globe (or an oblate spheroid) into a two-dimensional object will result in unavoidable distortions. In the TED-Ed lesson above by Kayla Wolf, you’ll learn a brief history of world maps, starting all the way back with the Greek mathematician Ptolemy, who “systematically mapped the Earth on a grid” in 150 AD in order to create maps that had a consistent scale. His grid system is still in use today — 180 lines of...