Open/Close All Full Name: John Caldwell Calhoun Born: March 18, 1782 in Abbeville district, South Carolina Died: March 31, 1850 in Washington, D.C.John C. Calhoun was a leading American politician and political theorist during the first half of the 19th century. Originally a nationalist and proponent of a strong national government, the South Carolina native later became a passionate defender of slavery and states’ rights. Calhoun helped steer the South towards secession, though he died before the Civil War.Calhoun is one of two men who have served as U.S. Vice President under two different presidents. He served four years under John Quincy Adams and was then re-elected in 1828, when he ran with Andrew Jackson.U.S. Vice Presidents Related Resources, Notes, Links, etc. See the Geopeda version of this article.