Upon hearing the name Abraham Lincoln, many images may come to mind: rail-splitter, country lawyer, young congressman, embattled president, Great Emancipator, assassin’s victim, even the colossal face carved into Mount Rushmore. One aspect of this multidimensional man that probably doesn’t occur to anyone other than avid readers of Lincoln biographies (and Smithsonian) is that of inventor. Yet before he became the 16th president of the United States, Lincoln, who had a long fascination with how things worked, invented a flotation system for lifting riverboats stuck on sandbars.
Though his invention was never manufactured, it serves to give Lincoln yet another honor: he remains the only U.S. president to have a patent in his name. According to Paul Johnston, curator of maritime history at the National Museum of American History (NMAH), Lincoln’s eminence and the historical rarity of his patent make the wooden model he submitted to the Patent Office “one of the half dozen or so most valuable things in our collection.”
Inventive Abe | History & Archaeology | Smithsonian Magazine.