On July 1, 1867, Canada became a self-governing dominion of Great Britain and a federation of four provinces: Nova Scotia; New Brunswick; Ontario; and Quebec. The anniversary of this date was called Dominion Day until 1982. Since 1983, July 1 has been officially known as Canada Day.
On July 1, 1867, the British North Americas Act created the Dominion of Canada as a federation of four provinces. This event is known as the confederation of Canada. The four original provinces were created from the former British colonies of Nova Scotia, New Brunswick and the Province of Canada, which was divided into the provinces of Quebec and Ontario. Canada's boundaries have been extended since 1867. The country now consists of 10 provinces and three territories.