Province of Quebec 1763-91
At the end of the Seven Years’ War (1756–63), Great Britain set out to organize the North American territories surrendered by France in the Treaty of Paris, 1763. By the Royal Proclamation of 1763, the Province of Quebec was created out of the inhabited portion of New France. The boundaries took on a rectangular shape on each side of the St. Lawrence River, and stretching from Lake Nipissing and the 45th parallel to the Saint John River and Ile d'Anticosti. These boundaries were modified by the Quebec Act of 1774 to include the fishing zone off Labrador and the Lower North Shore, and the fur trade area between the Ohio and Mississippi rivers and the Great Lakes. The Treaty of Paris, 1783 pushed the boundary farther north. With the Constitutional Act, 1791, Britain divided the Province of Quebec into Upper Canada (the predecessor of modern-day Ontario) and Lower Canada (whose geographical boundaries comprised the southern portion of present-day Quebec).