On what date did the Treaty of Paris officially end the American Revolutionary War?

The Treaty of Paris officially ended the American Revolutionary War on September 3, 1783.

Representatives of Great Britain and the United States signed the treaty in Paris. Britain recognized the United States as free, sovereign and independent states, formally accepting the outcome of the war. The agreement also established boundaries and addressed fishing rights, debts and the treatment of Loyalists.

The date is often confused with October 19, 1781, when Lord Cornwallis surrendered at Yorktown. Yorktown was a decisive military victory, but fighting and negotiations continued afterward. Congress ratified the Treaty of Paris on January 14, 1784.

The treaty with the United States was part of the wider Peace of Paris, a group of agreements involving Britain, France, Spain and the Dutch Republic. Those separate treaties collectively settled the international war connected with American independence.