Nunavut

April 1, 1999:

Nunavut is established as a Canadian territory carved out of the eastern part of the Northwest Territories.
Nunavut /ˈnuːnəˌvʊt/ (from Inuktitut: ᓄᓇᕗᑦ [ˈnunavut]) is the largest and newest federal territory of Canada; it was separated officially from the Northwest Territories on April 1, 1999, via the Nunavut Act and the Nunavut Land Claims Agreement Act, though the actual boundaries had been established in 1993. The creation of Nunavut – meaning "our land" in Inuktitut – resulted in the first major change to Canada's map since the incorporation of the new province of Newfoundland in 1949.
Nunavut comprises a major portion of Northern Canada, and most of the Canadian Arctic Archipelago, making it the fifth-largest country subdivision in the world. The capital Iqaluit (formerly "Frobisher Bay") on Baffin Island, in the east, was chosen by the 1995 capital plebiscite. Other major communities include the regional centres of Rankin Inlet and Cambridge Bay. Nunavut also includes Ellesmere Island to the north, as well as the eastern and southern portions of Victoria Island in the west and Akimiski Island in James Bay to the far south.
Nunavut is both the least populous and the largest in geography of the provinces and territories of Canada. One of the most remote, sparsely settled regions in the world, it has a population of 31,906, mostly Inuit, spread over an area the size of Western Europe. Nunavut is also home to the northernmost permanently inhabited place in the world, Alert.  Not to be confused with Nunavik, a region in northern Quebec, or Nunatsiavut, an autonomous Inuit region in northern Newfoundland and Labrador.

 I'm sure those pranksters up north have filmed man on the street interviews asking Americans to name a province or territory in Canada and gotten tons of laughs.  As bad as we are in this country when it comes to geographic knowledge of the United States, I can only imagine we'd be terrible when it comes to Canada.  Maybe we'd do better if they weren't sneaking new territories in on us, especially on April Fools' Day.