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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 Branch of the Potomac River” or “Anacostia River”? A Cartographic Curiosity…

Posted by: Ed Redmond

One of the joys involved in answering reference questions submitted to the Geography and Map Division is that some questions (the fun ones!) frequently involve extensive research in the Library’s cartographic holdings. Staff of the Geography and Map Division are also fortunate to be able to consult photocopies of maps from other institutions, early photographs …

Brown, red, and yellow tinted map illustration of the continents of Europe, Asia, Africa and Australia, with a circular frame around them

Mapping A World Of Cities

Posted by: Ed Redmond

Sponsored by the Leventhal Map Center of the Boston Public Library and the MacLean Collection Map Library in Chicago, IL, the Library of Congress is pleased to announce its participation entitled Mapping A World of Cities in a joint project with the American Geographical Society (Milwaukee, Wisconsin), the David Rumsey Map Center (Stanford Libraries, California), …

Brown, red, and yellow tinted map illustration of the continents of Europe, Asia, Africa and Australia, with a circular frame around them

Canals of Washington, DC

Posted by: Ed Redmond

Washington, D.C., was established as the “permanent seat of the Federal Government” by the passage of the Residence Act in 1790. This act allowed President George Washington to select the site for the new city anywhere along the banks of the Potomac River between its junction with the Shenandoah River, near present day Harpers Ferry, …

Brown, red, and yellow tinted map illustration of the continents of Europe, Asia, Africa and Australia, with a circular frame around them

Cartography of Contagion

Posted by: Ed Redmond

Originally published in 1874, these maps of the eastern half of the United States were designed to show the distribution of diseases including typhoid, malaria, pneumonia, tuberculosis, and rheumatism that affected the US population. The maps were published by L.H. Carney, M.D., but we find no biographical data on the author.  Medical data (in the …