South Carolina South Carolina South Carolina () is a state in the Southeastern United States and the easternmost of the Deep South. It is bordered to the north by North Carolina, to the southeast by the Atlantic Ocean, and to the southwest by Georgia across the Savannah River. South Carolina became the eighth state to ratify the U.S. Constitution on May 23, 1788. South Carolina became the first state to vote in favor of secession from the Union on December 20, 1860. After the American Civil War, it was readmitted into the United States on June 25, 1868. South Carolina is the
North Carolina-South Carolina Cornerstone contains the engraved notations, "N.C." and "S.C." was broken off when a car hit the marker in 1977. On the portion of the stone remaining at the original site can be seen "A.D. 1818." It was added to the National Register of Historic Places in 1984. North Carolina-South Carolina Cornerstone North Carolina-South Carolina Cornerstone is a historic boundary marker located near Lancaster, Lancaster County, South Carolina. It was erected in 1813, and is located on the boundary between Lancaster County, South Carolina and Union County, North Carolina. The cornerstone was erected by commissioners appointed by the two states to survey