Buoying Vessels Over Shoals

Buoying Vessels Over Shoals

Abraham Lincoln, prior to becoming President, was an avid boater and traveled on the Ohio and Mississippi rivers where his boat often got stuck on sandbars. In 1849, Lincoln invented a method for Buoying Vessels Over Shoals, making him the first and only U.S. President to receive a patent.

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Categories: DiscoveryPresident