World map, Definition, History, Challenges, & Facts

A world map is a graphical representation that depicts Earth’s exterior on a flat surface. World maps can be used to show political features, such as borders between states, as well as physical features. Because Earth is an ellipsoid, a world map is necessarily a distorted representation that various transformations, called projections, have attempted to moderate. World maps have evolved over time to gradually include all regions of Earth.

Official Listing of Countries by Region of the World

The Old World vs. New World History & Reasons for Exploration

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Facts about Pangaea, ancient supercontinent