Canada became a country when the BNA was passed on in what year?
The Constitution Act, 1867, originally known as the British North America Act (BNA Act) was the law passed by the British Parliament creating the Dominion of Canada at Confederation.The BNA Act was enacted on 29 March 1867.he Constitution Act, 1867, originally known as the British North America Act (BNA Act) was the law passed by the British Parliament creating the Dominion of Canada at Confederation. The BNA Act was enacted on 29 March 1867.