The Formation of Canada By mbarran2 Jul 1, 1867 Canada Becomes an Official Country First 4 provinces Ontario , Quebec , Nova Scotia and New Brunswick 1870 Manitoba becomes province 1870 Northwest Territories becomes a territory 1871 British Columbia becomes province 1873 Prince Edward Island becomes a province 1898 Yukon becomes territory 1905 Alberta becomes a province 1905 Saskatchewan becomes a province 1949 Newfoundland becomes a province 1999 Nunavut becomes a territory