President Abraham Lincoln
President Abraham Lincoln. Abraham Lincoln (February 12, 1809 – April 15, 1865) was an American lawyer and politician who served as the 16th president of the United States from 1861 until his assassination in April 1865. Lincoln led the U.S. through the American Civil War, its bloodiest war and perhaps its greatest moral, constitutional, and political crisis. In doing so, he preserved the Union, abolished slavery, strengthened the federal government, and modernized the economy.