The Treaty of Paris of 1783 formally ended the American Revolutionary War. American statesmen Benjamin Franklin, John Adams and John Jay negotiated the peace treaty with representatives of King George III of Great Britain. In the Treaty of Paris, the British Crown formally recognized American independence and ceded most of its territory east of the Mississippi River to the United States, doubling the size of the new nation and paving the way for westward expansion.

another way to write this.

The 1783 Treaty of Paris officially concluded the American Revolutionary War. Eminent American negotiators Benjamin Franklin, John Adams, and John Jay brokered the terms of peace with delegates of King George III of Great Britain. Through the provisions of the Treaty of Paris, the British monarchy acknowledged the sovereignty of the United States and relinquished the bulk of its lands east of the Mississippi River to the emerging country. This significant cession virtually doubled the territory of the nascent United States, setting the stage for future growth towards the west.