Canada Confederation refers to the process by which the British North American colonies of Nova Scotia, New Brunswick, and the Province of Canada (which consisted of modern-day Ontario and Quebec) were united into a single country called Canada in 1867. This process was facilitated by the British Parliament through the passage of the British North America Act, which established the Dominion of Canada as a self-governing country within the British Empire.

Before Confederation, the British North American colonies had their own governments and were largely responsible for their own affairs. However, they faced a number of challenges, including economic difficulties and political tensions between the French-speaking population of Quebec and the English-speaking populations of the other colonies. Confederation was seen as a way to address these challenges and create a stronger and more united country.

The Confederation process was led by a group of politicians known as the "Fathers of Confederation," who worked to negotiate the terms of the British North America Act and secure the support of the colonies for Confederation. Some of the key figures in the Confederation process included John A. Macdonald, George-Étienne Cartier, and Charles Tupper.

The Charlottetown Meetings, held in September 1864 in Charlottetown, Prince Edward Island, played a crucial role in the Confederation of Canada. These meetings brought together delegates from the Province of Canada, Nova Scotia, and New Brunswick to discuss the possibility of a federation of British North American colonies. The discussions in Charlottetown helped to lay the groundwork for the subsequent Quebec Conference and the creation of the Dominion of Canada in 1867. The Charlottetown Meetings are considered an important turning point in the process of Confederation, as they marked the beginning of serious negotiations between the colonies towards the formation of a unified country.

The British government encouraged the unification of the British North American colonies. In the mid-19th century, the British government was concerned about the security of its North American colonies in the face of growing American expansionism and potential American aggression. The British believed that a unified British North America would be better equipped to defend itself and to maintain its ties to Britain. The British government also saw the possibility of economic benefits from a united British North America, and was supportive of the idea of Confederation as a means of maintaining British influence in the region. Additionally, the British government provided financial incentives to the colonies to help with the cost of Confederation. Overall, the British government played a significant role in encouraging the formation of the Dominion of Canada in 1867.

The Quebec Conference was a series of meetings held in Quebec City in October 1864 between delegates from the Province of Canada, Nova Scotia, and New Brunswick to discuss the creation of a federal union of British North American colonies. The conference followed the Charlottetown Meetings and was attended by leading figures from the colonies, including John A. Macdonald and George Brown, who would later play important roles in the formation of the Dominion of Canada. The Quebec Conference was an important step in the Confederation process as it resulted in the drafting of the 72 Resolutions, which outlined the proposed structure and powers of the federal government and the distribution of responsibilities between the federal and provincial governments. These resolutions served as the basis for the creation of the British North America Act (now known as the Constitution Act, 1867), which established the Dominion of Canada as a self-governing federation within the British Empire. The Quebec Conference was therefore a key moment in the formation of modern Canada. The British North America Act (BNA Act), which established the Dominion of Canada as a self-governing federation of British North American colonies, was passed by the British Parliament in 1867.

The process of passing the BNA Act involved several steps:

Negotiations between the colonies: The Charlottetown Meetings and Quebec Conference of 1864 brought together delegates from the Province of Canada, Nova Scotia, and New Brunswick to discuss the creation of a federal union of British North American colonies.

Drafting of the BNA Act: The 72 Resolutions agreed upon at the Quebec Conference were used to draft the BNA Act.

Approval by the colonial governments: The draft of the BNA Act was approved by the colonial governments of the Province of Canada, Nova Scotia, and New Brunswick.

Passage by the British Parliament: The BNA Act was passed by the British Parliament as a British statute in 1867. The Act received Royal Assent on March 29, 1867, and took effect on July 1, 1867, when the Dominion of Canada was officially established.

The BNA Act was a critical moment in the formation of modern Canada, as it marked the birth of the Dominion of Canada as an independent country within the British Empire, with a federal system of government that divided powers between the federal and provincial governments.