Today Canada is made up of ten provinces and three territories. On July 1st, 1867 when the British North America Act created the new Dominion of Canada, there were only four provinces, Ontario, Quebec, Nova Scotia and New Brunswick.
Three years after Confederation in 1870, Canada purchased Rupert's Land from the Hudson's Bay Company, which had been granted a charter to the area by the British government exactly two centuries earlier. Rupert's Land spanned all land drained by rivers flowing into Hudson's Bay, roughly 40% of present-day Canada. The selling price was 300,000 pounds sterling.
Also in 1870, Britain transferred the North-Western Territory to Canada. Previously, the Hudson's Bay Company had an exclusive license to trade in this area, which stretched west to the colony of British Columbia and north to the Arctic Circle. When it was discovered in the mid 1800s that the prairies had enormous farming potential, the British government refused to renew the company's license. With the Hudson's Bay Company out of the area, Britain was free to turn the land over to Canada.
Rupert's Land and the North-Western Territory were combined to form the Northwest Territories. The Manitoba Act of 1870 created the province of Manitoba from a small portion of this land.
In 1871 British Columbia joined the union with the promise of a railway to link it to the rest of the country.
In 1873, Prince Edward Island, which had previously declined an offer to join Confederation, became Canada's seventh province.
Yukon, which had been a district of the Northwest Territories since 1895, became a separate territory in 1898.
Meanwhile, Canada was opening up its west. Migrants from eastern Canada and immigrants from Europe began to settle in the prairies, which were still part of the Northwest Territories. Then, in 1905, the provinces of Saskatchewan and Alberta were created, completing the map of Western Canada.
After great debate and two referenda, the people of Newfoundland and Labrador voted to join Confederation in 1949, creating Canada's tenth province.
In 1999, Nunavut was created from the eastern portion of the Northwest Territories to complete what is now present-day Canada.
Years in which Provinces and Territories joined Confederation:
1867 — Ontario - Quebec - Nova Scotia - New Brunswick