Fort Stanwix National Monument, in Rome, New York, was authorized in 1935 as a memorial to the American Revolution (1775-1783) and United States colonial history. In 1758, during the French and Indian War (1754-1763), British and American colonial troops built the fort along an important transportation route in New York’s Mohawk Valley. The fort was abandoned after the war. In 1776, at the urging of the allied Oneida Indians, the Americans claimed and repaired the fort. In August 1777, the fort’s defenders held off a 21-day siege by British-led forces. For area, see National Park System (table: National monuments) .