New France
In 1763, France had ceded the rest of New France, except the islands of Saint Pierre and Miquelon, to Great Britain and Spain at the Treaty of Paris, which ended the Seven Years' War (known as the French and Indian War in North America and especially the United States). Britain received Canada, Acadia, and the parts of French Louisiana which lay east of the Mississippi Riverexcept for the Île d'Orléans, which was granted to Spain, along with the territory to the westthe larger portion of Louisiana.
British America
British America gained large amounts of new territory following the Treaty of Paris (1763) which ended the French and Indian War in America, and ended British involvement in the Seven Years' War in Europe. At the start of the Revolutionary War in 1775, the British Empire included 20 colonies north and east of New Spain, including areas of Mexico and the Western United States. East and West Florida were ceded to the Kingdom of Spain in the Treaty of Paris (1783) which ended the American Revolution, and then ceded by Spain to the United States in 1819 after treaty negotiations to settle the old southwest border with Spanish Florida (eastern Louisiana, southern Alabama, Mississippi, and western Georgia). The remaining continental colonies of British North America to the northeast formed the Dominion of Canada by uniting provinces between 1867 and 1873. The Dominion of Newfoundland to the east joined Canada in 1949.