The 1764 Treaty of Niagara was agreed to by Sir William Johnson for the Crown and 24 Nations from the Haudenosaunee, Seneca, Wyandot of Detroit, Menominee, Algonquin, Nipissing, Ojibwa, Mississaugas, and others who were part of the Seven Nations of Canada and the Western Lakes Confederacy.
The Royal Proclamation of 1763 established the British definition of Indian Country.