The Treaty of Paris, signed in Paris by representatives of King George III of Great Britain and representatives of the United States of America on September 3, 1783, ended the American Revolutionary War. The treaty set the boundaries between the British Empire in North America and the United States, on lines "exceedingly generous" to the latter. Details included fishing rights and restoration of property and prisoners of war.
This treaty and the separate peace treaties between Great Britain and the nations that supported the American cause — France, Spain, and the Dutch Republic — are known collectively as the Peace of Paris. Only Article 1 of the treaty, which acknowledges the United States' existence as free sovereign and independent states, remains in force. 
Peace negotiations began in April 1782, and continued through the summer. Representing the United States were Benjamin Franklin, John Jay, Henry Laurens, and John Adams. David Hartley and Richard Oswald represented Great Britain. The treaty was signed at the Hotel d'York (presently 56 Rue Jacob) in Paris on September 3, 1783, by Adams, Franklin, Jay, and Hartley. 
Regarding the American Treaty, the key episodes came in September, 1782, when French Foreign Minister Vergennes proposed a solution that was strongly opposed by his ally, the United States. France was exhausted by the war, and everyone wanted peace except for Spain, which insisted on continuing the war until it could capture Gibraltar from the British. Vergennes came up with the deal that Spain would accept instead of Gibraltar. The United States would gain its independence but be confined to the area east of the Appalachian Mountains. Britain would take the area north of the Ohio River. In the area south of that would be set up an independent Indian state under Spanish control. It would be an Indian barrier state.
However, the Americans realized that they could get a better deal directly from London. John Jay promptly told the British that he was willing to negotiate directly with them, cutting off France and Spain. The British Prime Minister Lord Shelburne agreed. He was in charge of the British negotiations (some of which took place in his study at Lansdowne House, now a bar in the Lansdowne Club) and he now saw a chance to split the United States away from France and make the new country a valuable economic partner. The western terms were that the United States would gain all of the area east of the Mississippi River, north of Florida, and south of Canada. The northern boundary would be almost the same as today.  The United States would gain fishing rights off Canadian coasts, and agreed to allow British merchants and Loyalists to try to recover their property. It was a highly favorable treaty for the United States, and deliberately so from the British point of view. Prime Minister Shelburne foresaw highly profitable two-way trade between Britain and the rapidly growing United States, as indeed came to pass. 
Great Britain also signed separate agreements with France and Spain, and (provisionally) with the Netherlands.  In the treaty with Spain, the territories of East and West Florida were ceded to Spain (without a clear northern boundary, resulting in a territorial dispute resolved by the Treaty of Madrid in 1795). Spain also received the island of Menorca; the Bahama Islands, Grenada, and Montserrat, captured by the French and Spanish, were returned to Britain. The treaty with France was mostly about exchanges of captured territory (France's only net gains were the island of Tobago, and Senegal in Africa), but also reinforced earlier treaties, guaranteeing fishing rights off Newfoundland. Dutch possessions in the East Indies, captured in 1781, were returned by Britain to the Netherlands in exchange for trading privileges in the Dutch East Indies, by a treaty which was not finalized until 1784. 
The United States Congress of the Confederation ratified the Treaty of Paris on January 14, 1784. Copies were sent back to Europe for ratification by the other parties involved, the first reaching France in March 1784. British ratification occurred on April 9, 1784, and the ratified versions were exchanged in Paris on May 12, 1784. 
Treaty key points
Preamble. Declares the treaty to be "in the name of the most holy and undivided Trinity", states the bona fides of the signatories, and declares the intention of both parties to "forget all past misunderstandings and differences" and "secure to both perpetual peace and harmony".
- Britain acknowledges the United States (New Hampshire, Massachusetts Bay, Rhode Island and Providence Plantations, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina and Georgia ) to be free, sovereign, and independent states, and that the British Crown and all heirs and successors relinquish claims to the Government, property, and territorial rights of the same, and every part thereof;
- Establishing the boundaries of the United States, including but not limited to those between the United States and British North America;
- Granting fishing rights to United States fishermen in the Grand Banks, off the coast of Newfoundland and in the Gulf of Saint Lawrence;
- Recognizing the lawful contracted debts to be paid to creditors on either side;
- The Congress of the Confederation will "earnestly recommend" to state legislatures to recognize the rightful owners of all confiscated lands and "provide for the restitution of all estates, rights, and properties, which have been confiscated belonging to real British subjects" (Loyalists);
- United States will prevent future confiscations of the property of Loyalists;
- Prisoners of war on both sides are to be released; all property of the British army (including slaves) now in the United States is to remain and be forfeited;
- Great Britain and the United States are each to be given perpetual access to the Mississippi River;
- Territories captured by Americans subsequent to the treaty will be returned without compensation;
- Ratification of the treaty is to occur within six months from its signing.
Eschatocol. "Done at Paris, this third day of September in the year of our Lord, one thousand seven hundred and eighty-three."
Historians have often commented that the treaty was very generous to the United States in terms of greatly enlarged boundaries. Historians such as Alvord, Harlow, and Ritcheson have emphasized that British generosity was based on a statesmanlike vision of close economic ties between Britain and the United States. The concession of the vast trans-Appalachian region was designed to facilitate the growth of the American population and create lucrative markets for British merchants, without any military or administrative costs to Britain.  The point was the United States would become a major trading partner. As the French foreign minister Vergennes later put it, "The English buy peace rather than make it". Vermont was included within the boundaries because the state of New York insisted that Vermont was a part of New York, although Vermont was then under a government that considered Vermont not to be a part of the United States. 
Privileges that the Americans had received from Britain automatically when they had colonial status (including protection from pirates in the Mediterranean Sea; see: the First Barbary War and the Second Barbary War) were withdrawn. Individual states ignored federal recommendations, under Article 5, to restore confiscated Loyalist property, and also ignored Article 6 (e.g., by confiscating Loyalist property for "unpaid debts"). Some, notably Virginia, also defied Article 4 and maintained laws against payment of debts to British creditors. The British often ignored the provision of Article 7 about removal of slaves. 
The actual geography of North America turned out not to match the details used in the treaty. The Treaty specified a southern boundary for the United States, but the separate Anglo-Spanish agreement did not specify a northern boundary for Florida, and the Spanish government assumed that the boundary was the same as in the 1763 agreement by which they had first given their territory in Florida to Britain. While that West Florida Controversy continued, Spain used its new control of Florida to block American access to the Mississippi, in defiance of Article 8.  The treaty stated that the boundary of the United States extended from the " most northwesternmost point " of the Lake of the Woods (now partly in Minnesota, partly in Manitoba, and partly in Ontario) directly westward until it reached the Mississippi River. But in fact that Mississippi does not extend that far northward; the line going west from the Lake of the Woods never intersects the river.
Great Britain violated the treaty stipulation that they should relinquish control of forts in United States territory "with all convenient speed." British troops remained stationed at six forts in the Great Lakes region, plus two at the north end of Lake Champlain. The British also built an additional fort in present-day Ohio in 1794, during the Northwest Indian War. They found justification for these actions in the unstable and extremely tense situation that existed in the area following the war, in the failure of the United States government to fulfill commitments made to compensate loyalists for their losses, and in the British need for time to liquidate various assets in the region.  All posts were relinquished peacefully through diplomatic means as a result of the 1794 Jay Treaty. They were:
|Name||Present day location|
|Fort au Fer||Lake Champlain – Champlain, New York|
|Fort Dutchman's Point||Lake Champlain – North Hero, Vermont|
|Fort Lernoult (including Fort Detroit)||Detroit River – Detroit, Michigan|
|Fort Mackinac||Straits of Mackinac – Mackinac Island, Michigan|
|Fort Miami||Maumee River – Maumee, Ohio|
|Fort Niagara||Niagara River – Youngstown, New York|
|Fort Ontario||Lake Ontario – Oswego, New York|
|Fort Oswegatchie||Saint Lawrence River – Ogdensburg, New York|
- Ratification Day (United States)
- List of United States treaties
- America's Critical Period, the period of U.S. history in the 1780s after the American Revolution and prior to the ratification of the United States Constitution.
- History of the United States (1776–89)
- Diplomacy in the American Revolutionary War