Abraham Lincoln (; February 12, 1809 – April 15, 1865) was an American statesman and lawyer who served as the 16th president of the United States (1861–1865). Lincoln led the nation through its greatest moral, constitutional, and political crisis in the American Civil War. He preserved the Union, abolished slavery, strengthened the federal government, and modernized the U.S. economy.
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I do the very best I know how-the very best I can; and I mean to keep doing so until the end. If the end brings me out all right, what is said against me won't amount to anything. If the end brings me out wrong, ten angels swearing I was right would make no difference.