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About this Blog: Worlds Revealed

The largest and most comprehensive cartographic collection in the world, the Library’s Geography and Map Division contains more than six million maps in addition to a wide array of atlases, globes, raised relief models, archives, a vast collection of digital data and a GIS research center. Please join us as we reveal the world of geography by exploring the past, present and future of maps and mapping.

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Brown, red, and yellow tinted map illustration of the continents of Europe, Asia, Africa and Australia, with a circular frame around them
Eastern Old World or Hemisphere, 1786. Part of a map that shows both Eastern and Western Hemispheres. (William Faden/Geography and Map Division)