The first John Adams was originally built in 1799 as a frigate for the United States Navy, converted to a corvette in 1809, and later converted back to a frigate in 1830. Named for President John Adams, she fought in the Quasi-War, the First and Second Barbary Wars, the War of 1812, the Mexican-American War and the American Civil War. At the end of her career, she participated in the Union blockade of South Carolina's ports