Example image of eyePlorer eyePlorer map for 'Sullivan County, Indiana': County Indiana Mean center of United States population United States United States Census Bureau Terre Haute, Indiana United States metropolitan area George Rogers Clark Vincennes, Indiana 1779 March 2 Wabash River Leonard Helm Wabash Valley Shakers Carlisle, Indiana 1811 September 29 William Henry Harrison Kentucky Battle of Tippecanoe War of 1812 Fort Knox Native Americans in the United States American Revolutionary War Louisville, Kentucky Courthouse Merom, Indiana Green County, Kentucky Virginia Danville, Kentucky Tumor 1809 December 25 Ephraim McDowell Oophorectomy Graysville, Indiana Presbyterianism Ephraim McDowell House County seat Sullivan, Indiana College Union Christian College, Merom University-preparatory school United Church of Christ American Civil War 1864 Anti-war Democratic Party (United States) July 14