The name "Quebec", which comes from an Algonkin word meaning "Where the river narrows", originally referred to the area around Quebec City where the Saint Lawrence River narrows to a cliff-lined gap. Early variations in the spelling of the name included Quebecq (Levasseur, 1601) and Kebec (Lescarbot 1609). French explorer Samuel de Champlain chose the name Quebec in 1608 for the colonial outpost he would use as the administrative seat for the French colony of New France.
The Province of Quebec was founded in the Royal Proclamation of 1763 after the Treaty of Paris formally transferred the French colony of Canada to Britain after the Seven Years' War. The proclamation restricted the province to an area along the banks of the Saint Lawrence River. The Quebec Act of 1774 expanded the territory of the province to include the Great Lakes and the Ohio River Valley, more or less restoring the borders previously existing under French rule before the Conquest. The Treaty of Versailles, 1783 ceded territories south of the Great Lakes to the United States. After the Constitutional Act of 1791, the territory was divided between Lower Canada (present day Quebec) and Upper Canada (present day Ontario), with each being granted an elected Legislative Assembly. In 1840, these become Canada East and Canada West after the British Parliament unified Upper and Lower Canada into the Province of Canada. This territory was redivided into the Provinces of Quebec and Ontario at Confederation in 1867. Each became one of the first four provinces.
In 1870, Canada purchased Rupert's Land from the Hudson's Bay Company. Over the next few decades the Parliament of Canada transferred portions of this territory to Quebec that would more than triple the size of the province. In 1898, the Canadian Parliament passed the first Quebec Boundary Extension Act that expanded the provincial boundaries northward to include the lands of the aboriginal Cree. This was followed by the addition of the District of Ungava through the Quebec Boundaries Extension Act of 1912 that added the northernmost lands of the aboriginal Inuit to create the modern Province of Quebec.