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2 posts tagged with abrahamlincoln by kirkaracha.
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Mapping Slavery

Mapping Slavery. In September 1861 Edwin Hergesheimer of the United States Coast Survey produced a map based on data from the 1860 census showing the distribution of slaves across the South. It's interesting to compare this to other maps. [more inside]
posted by kirkaracha on Jan 7, 2011 - 32 comments

Whatever Floats Your Boat

Buoying Vessels Over Shoals. In 1849, Abraham Lincoln was awarded Patent No. 6469 (drawing and large TIFF files of pages 1, 2, and 3 of the actual patent) for a device for raising stuck riverboats off sand bars. The model he submitted with the patent application is at the National Museum of American History; who made the model is a bit of a mystery. Lincoln is the only United States President to hold a patent. (Other Lincoln-related patents, including the patent for Lincoln Logs.)
[via History Now's timeline of 19th-century inventions.]

posted by kirkaracha on Jan 5, 2007 - 7 comments

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