The main consequence of the Treaty of Paris in 1783 was the formal recognition of American independence from British rule, effectively ending the American Revolutionary War. The treaty was signed on September 3, 1783, and established the boundaries of the United States, including significant territorial gains that expanded the nation’s land from the Atlantic Ocean to the Mississippi River. This new framework enabled the U.S. to establish itself as a sovereign nation. Additionally, the treaty laid the foundation for future diplomatic relations and opened up opportunities for westward expansion, fostering a sense of unity and purpose among the formerly disparate colonies.