The area of New York was part of the original territory of the United States. When originally chartered in 1664, it included a much larger area. A portion was sold to create New Jersey in 1664, and title claims were ceded in 1682 to Delaware and Pennsylvania. In 1780, New York ceded area to the United States that became part of the Northwest Territory in 1787. New York ratified the U.S. Constitution on July 26, 1788; it was the 11th of the original 13 states to join the Union. In 1791, New York consented to the statehood separation of Vermont; in 1792, it sold area along Lake Erie (the Erie Triangle) to Pennsylvania, to assume generally the same boundary as the present state.