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At the Institute’s core is the Gilder Lehrman Collection, one of the great archives in American history. More than 70,000 items cover five hundred years of American history, from Columbus’s 1493 letter describing the New World to soldiers’ letters from World War II and Vietnam. Explore primary sources, visit exhibitions in person or online, or bring your class on a field trip.

Lincoln, Abraham (1809-1865) [Patent for Abraham Lincoln's improvement in buoying vessels over shoals]

Gilder Lehrman Collection #: GLC01304 Author/Creator: Lincoln, Abraham (1809-1865) Place Written: Washington, D.C. Type: Printed document Date: 22 May 1849 Pagination: 3 p. ; 28.8 x 20 cm.

Summary of Content: Patent granted to Lincoln for inventing "a new and improved manner of combining adjustable buoyant air chambers with a steamboat or other vessel for the purpose of enabling their draught of water to be readily lessened to enable them to pass over bars ... " Includes a written description and diagram.

People: Lincoln, Abraham, 1809-1865.

Historical Era: National Expansion and Reform, 1815-1860

Keywords/Subjects: Science and Technology, President Patent, Transportation, Steamboat

Sub Era: Age of Jackson Lincoln