The treaty that marked the end of the American Revolutionary War is the Treaty of Paris, signed in 1783. This treaty recognized the independence of the thirteen American colonies and established borders for the new nation. Key provisions included the recognition of U.S. sovereignty and the cession of territory by Britain. The Treaty of Paris set the stage for the formation of the United States as an independent republic, fostering the growth of democratic principles and influencing global revolutionary movements. Its impact on international relations in the 18th century was profound.