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What did Lincoln invent?

April 26, 2017invent Lincoln

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What did Lincoln invent?

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A device to lift boats over sandbars and other obstructions in the water. This was a big problem for navigators in the 1800s and Lincoln experienced it firsthand, having made flatboat trips to New Orleans. On May 22, 1849, Abraham Lincoln received Patent No. 6469 for a device to lift boats over shoals. His invention was never manufactured, but it did make him the only president to obtain a patent. Read more at the Abraham Lincoln Online web site.