The area of North Carolina was part of the original territory of the United States. Both North Carolina and South Carolina were included in the charter that established Carolina in 1663. The two areas separated in 1712-a separation that was finalized when the Carolina Colony was dissolved in 1729-with generally the same shared boundary as the present states. However, they did not settle on a final boundary until 1813. North Carolina ratified the U.S. Constitution on November 21, 1789; it was the 12th of the original 13 states to join the Union. North Carolina ceded its territory westward to the Mississippi River, comprising present-day Tennessee, to the United States in 1790, to assume generally the same boundary as the present state.