1763
10 February: Signing of the Treaty of Paris
Ending the Seven Year’s War, also known as the French and Indian War in North America. France ceded all mainland North American territories, except New Orleans, in order to retain her Caribbean sugar islands. Britain gained all territory east of the Mississippi River; Spain kept territory west of the Mississippi, but exchanged East and West Florida for Cuba.
7 October: Proclamation of 1763
Wary of the cost of defending the colonies, George III prohibited all settlement west of the Appalachian mountains without guarantees of security from local Native American nations. The intervention in colonial affairs offended the thirteen colonies' claim to the exclusive right to govern lands to their west.