20 maps that changed the world – Mental Floss

A lot has changed in the world of cartography since people first started trying to map the world, with advancements in knowledge and technology over the centuries leading to increased accuracy. And yet each map offers a subjective view of the world, one that is shaped by the specific time and culture in which it was produced. Here are 20 such pieces throughout history that have changed humanity’s understanding of the world—from an ancient Roman road map to a poverty map of Victorian London.