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Archive: April 2020 (2 Posts)

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 …