When did Canada leave the confederation to become their own nation?

The story behind the answer

July 1, 1867 is correct because the British North America Act (now the Constitution Act, 1867) united the colonies of Canada (split into Ontario and Quebec), Nova Scotia, and New Brunswick into the self-governing Dominion of Canada—an event known as Confederation. Canada remained within the British Empire but gained control over its internal affairs, laying the foundation of the modern Canadian state.

Context: Full legislative independence came later with the Statute of Westminster (1931) and complete constitutional control in 1982. To remember the date, think “Canada’s birthday”: July 1 is celebrated as Canada Day, marking its formation. Also recall “four provinces on the first of July ’67”—a neat hook for the original Confederation.