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Mark's Almanac for March 10, 2021

 Lincoln’s original patent model was acquired by the Smithsonian in 1908.
Lincoln’s original patent model was acquired by the Smithsonian in 1908.

It was on this date in 1849 that Abraham Lincoln became the only future U.S. President to file a patent. It was for a device to lift a boat over obstructions. A copy of the scale model of this invention is now on display at the Smithsonian.

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