August 1, 1867

The British North America Act (also known as the Constitution Act of 1867) officially came into force, uniting the provinces of Ontario, Quebec, New Brunswick, and Nova Scotia into the Dominion of Canada.


Ottawa, Canada | British Parliament

Watercolor painting based depiction of The British North America Act (also known as the Constitution Act of 1867) officially came into force, uniting the provinces of Ontario, Quebec, New Brunswick, and Nova Scotia into the Dominion of Canada. (1867)

The British North America Act Comes into Force - July 1, 1867

On July 1, 1867, the British North America Act, also known as the Constitution Act of 1867, came into effect, marking a pivotal moment in the history of Canada. This legislation united the provinces of Ontario, Quebec, New Brunswick, and Nova Scotia into a single nation known as the Dominion of Canada. The Act was passed by the British Parliament and granted royal assent by Queen Victoria on March 29, 1867, laying the foundation for the Canadian Confederation.

Context Leading to Confederation

In the mid-19th century, several factors contributed to the push for unification among the British North American colonies:

  • Political Gridlock: The Province of Canada, which consisted of modern-day Ontario and Quebec, experienced persistent political deadlock due to equal representation from both regions, which made governance challenging.
  • Economic Considerations: The possibility of economic growth through a larger internal market and improved infrastructure—such as the Intercolonial Railway—made union attractive.
  • Defense Concerns: The potential threat of American expansionism following the American Civil War encouraged a united approach to defense.
  • Colonial Preference: As the British Empire encouraged self-reliance among its colonies, leaders in these regions saw confederation as a path to increased autonomy.

Key Provisions of the Act

The British North America Act was a comprehensive constitution that outlined the framework for federal governance in Canada. Key provisions included:

  • Federal Structure: It established a federal system of government, dividing powers between the federal and provincial governments.
  • Parliamentary System: A constitutional monarchy was confirmed, with a parliamentary system that includes a House of Commons and a Senate.
  • Executive Authority: The Governor General represented the British Crown in Canada, exercising executive authority on its behalf.
  • Legal Continuity: The Act maintained existing laws and institutions unless explicitly altered by the new government.

Aftermath and Significance

The enactment of the British North America Act marked the beginning of Canada’s path to becoming a fully sovereign nation. It laid the groundwork for future expansions of Canada, as additional provinces and territories joined the confederation over the ensuing decades. Celebrated today as Canada Day, July 1st is a national holiday commemorating the birth of the Canadian Confederation.

The British North America Act remained the central constitutional statute of Canada until 1982, when it was patriated and became the Constitution Act, 1867. This move ended British legislative control over Canada and added the Canadian Charter of Rights and Freedoms, enhancing civil liberties and the legal autonomy of Canada.

Through its foundational structure and initial unification of the provinces, the British North America Act of 1867 played a crucial role in shaping the country’s political and social evolution, setting Canada on its course as a nation.