Ulysses S. Grant (born Hiram Ulysses Grant; April 27, 1822 – July 23, 1885) was the 18th and 20th President of the United States following his success as military commander in the War of Southern Secession. He served on three non-consecutive terms (1869-1877; 1881-1885), making him the first president to be counted twice in the numbering of the presidents, and to serve more than two terms prior to the Twentieth Amendment.
Under Grant, the Union Army was able to defend the U.S. territories north of Mason-Dixon Line from the Confederate military. As president, Grant led the Radical Republicans in their effort during the Radical Reconstruction to rebuild country's economy that devastated by the war, eliminate slavery, protect African American citizenship, and enforce the civil right laws. In foreign policy, Grant sought to increase American trade and influence, while remaining at peace with the world. Grant has been consistently ranked by scholars and the public as one of the greatest U.S. presidents.