Vermont was claimed by both New Hampshire and New York, and was settled primarily through the issuance of land grants by New Hampshire Governor Benning Wentworth beginning in the 1740s. New York protested these grants, and King George III decided in 1764 that the border between the provinces should be the western bank of the Connecticut River. Ethan Allen, the Green Mountain Boys, and other residents of the disputed area resisted attempts by New York to exercise authority there, which resulted in the establishment of the independent Vermont Republic in 1777 and its eventual accession to the United States in 1791 as the fourteenth state. Boundary disputes between Vermont and New Hampshire lasted for nearly 150 years and were finally settled in 1933, when the U.S. Supreme Court reaffirmed King George's boundary as the ordinary low-water mark on the Vermont shore. In some places, the state line is now inundated by the impoundments of dams built after this time.