What year did Canada become a country?

Canada officially became a country on July 1, 1867, through the process of Confederation. This date marks the unification of the original four provinces: Ontario, Quebec, New Brunswick, and Nova Scotia, into a single Dominion within the British Empire known as Canada. The British North America Act (now called the Constitution Act, 1867) played a critical role in this process, establishing the framework for the new nation, including its federal structure, governance, and distribution of powers between the federal and provincial governments. As a result, 1867 is a significant historical milestone for Canada, symbolizing its emergence as a self-governing entity.

The other years listed correspond to different significant events in Canada's history, such as the expansion of its provinces or changes in governance, but none mark the actual founding of the country itself.