The Supreme Court of Canada, established in 1875, has served as the country's final court of appeal since 1949. Its history can be divided into three broad eras. From 1875 to 1949, it functioned as an intermediate appellate court, with decisions subject to review by the Judicial Committee of the Privy Council in Britain. After 1949, the Court gained authority and legitimacy as Canada's court of last resort, expanding the judiciary's role in shaping Canadian law. In 1982, the adoption of the Canadian Charter of Rights and Freedoms transformed the Court's function, granting it enhanced powers of oversight over Parliament and entrenching civil rights, including Aboriginal and equality rights.

In July 2025, the Supreme Court announced that it will translated its pre-1970 decisions into both English and French, covering 150 years of judgments rendered by the Supreme Court of Canada.

Origins Pre-Confederation The authority to establish a national court dated back to the creation of the Province of Canada in 1840, but the power remained unused. Proposals for such a court surfaced at several key moments: 1858, the 1864 Quebec Conference, and the 1866 London Conference; though it was never the central focus. By Confederation in 1867, the vision was for a national court of appeal to serve as the final arbiter in Canada, particularly in disputes between the provinces and Parliament.

Supporters argued that a general court of appeal would unify the laws of the common law provinces by ensuring consistency through judicial precedent, rather than relying solely on provincial legislatures. However, many in Canada West (Ontario) preferred to retain the established oversight of the Judicial Committee of the Privy Council. In Canada East (Quebec), critics worried about the cost and accessibility of appeals to London, as well as the possible threat to Quebec's unique civil law tradition and to French Canadian identity. Future Supreme Court Justice Henri-Elzéar Taschereau warned that maintaining Privy Council appeals would only prolong litigation and increase costs.

The ambivalence of the Confederation debates was reflected in the views of John A. Macdonald. As Attorney General of Canada West, he championed strong national institutions, including a supreme court, but stressed that the power to establish the court was merely permissive for the newly formed Parliament and should only come after "full consideration." George-Étienne Cartier agreed, describing the court as a matter for the future and envisioning it as a national body of skilled jurists representing each of the provinces. Confederation

When the British North America Act, 1867, was finalized, section 101 provided Parliament the option ("may") to create a general court of appeal, rather than requiring it ("shall"):

101. The Parliament of Canada may, notwithstanding anything in this Act, from Time to Time provide for the Constitution, Maintenance, and Organization of a General Court of Appeal for Canada, and for the Establishment of any additional Courts for the better Administration of the Laws of Canada.Constitution Act, 1867, s 101.

After Confederation in 1867, momentum grew for the creation of a final court of appeal for the new Dominion, though unresolved political tensions delayed its establishment for eight years. Leaders such as Télésphore Fournier, Alexander Mackenzie, and Edward Blake actively promoted the idea of a supreme court.

Debates over its role reflected competing visions. Some argued that a Canadian court of appeal would be redundant given the existing right of appeal to the Judicial Committee of the Privy Council, which raised the broader question of whether Canada should abolish Privy Council appeals entirely. Others expressed concern about whether a national court could adequately protect Quebec's distinct civil law tradition and culture.

In 1868, Macdonald confidentially tasked his friend, jurist Samuel Henry Strong, to draft legislation for a supreme court. Strong, working independently, submitted a first draft of the legislation to Parliament in 1869 without consulting other lawmakers.Bill 80: An Act to Establish a Supreme Court for the Dominion of Canada, 2nd Session, 1st Parliament, 1869. Strong's 1869 bill, modeled after the Supreme Court of the United States, proposed a bench of seven judges, including a chief justice, with a quorum of four. The bill envisioned a "general court of appeal" with jurisdiction over provincial and federal law, but Macdonald introduced it mainly as a discussion document and soon withdrew it. Macdonald introduced a second bill in 1870,Bill 48: An Act to establish a Supreme Court for Canada, 3rd Session, 1st Parliament, 1870. it offered concessions such as jurisdictional limits and monetary thresholds for appeals. Yet it too failed, because of unresolved issues surrounding judicial parity, provincial representation, and the court's overall role ultimately led to its withdrawal as well. For instance, the federal government retained the power to refer provincial acts or bills to the new court to make a determination of validity, but did not have the same power for acts of Parliament, demonstrating Macdonald's intent to use the court as a check on the provinces, rather than on the federal government.

The October 1873 Speech from the Throne promised another attempt, but Macdonald's government collapsed the following month in the wake of the Pacific Scandal.

Meanwhile, opposition from Quebec softened due to a judicial crisis in the province and the Guibord case. In Guibord (1873), the Privy Council overturned the Quebec Court of Appeal and held that Joseph Guibord's widow could compel the Catholic Church to allow her husband's burial in consecrated ground at the Notre Dame des Neiges Cemetery in Montreal. The case demonstrated that Privy Council rulings might not always fully appreciate the nuances of Quebecois religious culture.

At the same time, confidence in Quebec's judiciary had been weakened. The Bar of Quebec passed a resolution denouncing the province's highest court as "inefficient, unsatisfactory and destructive" to public confidence. The scandal prompted one judge to resign and two others to take a leave of absence that left the court unable to function without a quorum. In June 1874, Chief Justice Jean-François-Joseph Duval resigned, ending the crisis.

Establishment of the Court by the Mackenzie Government

During the 1874 federal election, Alexander Mackenzie's Liberals included the creation of a central court of appeal as part of their campaign platform. Upon taking power, the Mackenzie government reiterated this commitment in the throne speech of 1874. Minister of Justice Télésphore Fournier introduced a new Supreme Court Bill to Parliament in February 1875. On April 8, 1875, with bipartisan support, Parliament passed The Supreme and Exchequer Court Act, simultaneously establishing both the Supreme Court and the Exchequer Court. After Edward Blake succeeded Fournier as justice minister, he personally staked his political reputation on the Act's successful implementation, as he saw significant personal consequences if he failed to execute it as written.

The British Colonial Office considered disallowing the newly passed legislation due to the inclusion of Section 47 abolishing appeals to any British appeals court (including the Privy Council) as a right, although it preserved the sovereign's right to grant special leave. Governor General Lord Dufferin granted assent on April 8 after Mackenzie reached an informal agreement with Secretary of State for the Colonies Lord Carnarvon. The agreement stipulated that the act would be proclaimed into force and Parliament would later modify Section 47 if the British government deemed it beyond the Canadian government's authority. To the surprise of the British, the Canadian government moved quickly to implement the Act and establish the Supreme Court by rapidly appointed judges to the new court. By doing so, Blake hoped to make disallowance politically unpalatable, as the Liberal government grew resentful of what they perceived as interference from the British government. The structure of the Act itself made this possible as it was designed to be implemented in phases, and Blake generated internal pressure by asserting that numerous important cases awaited the new court's attention.

Section 47 became a major point of contention between the Canadian government, led by Attorney General Edward Blake, and the British government. Lord Chancellor Cairns and colonial secretary Lord Carnarvon sought to maintain appeals to the Privy Council, proposing language from Macdonald's 1870 bill, which Blake rejected. Section 47 became a symbol of undermining unity within the British Empire, and an appeal to the Privy Council represented an important tie between Canada and the Empire. Legal arguments supporting the appeal included the claim that it potentially constituted a prerogative power that the Parliament of Canada could not abolish, the right of all British subjects to petition the Privy Council, the maintenance of uniformity in English law, the provision of an impartial arbiter for questions concerning the federal division of powers, and the protection of minority rights in Canada. Despite British efforts, section 47 remained in place. In the first appeal to the Privy Council from the Supreme Court in 1877, Lord Chancellor Cairns wrote the decision to reject the appeal, yet interpreted the Privy Council's right to hear appeals much broader than the language of extraordinary prerogative power that was originally drafted.Johnstone v The Minister & Trustees of St. Andrews Church, Montreal, 1877 CanLII 22 (SCC), 1 SCR 235; leave to appeal refused (1877), 3 App. Cas. 159. Section 47 and the Supreme Court Act became symbols of Canadian nationalism for Blake and the Liberals but also became intertwined with Macdonald's advocacy for the "British connection", a theme he would use in his eventual comeback in the 1878 election.

Initial composition of the Court At the outset, the Supreme Court was to be staffed by six justices. In addition, each of the six justices also sat individually as judges of the newly created Exchequer Court. This arrangement did not change until 1887 when the judges of the two courts were separated by legislative amendment.The Exchequer Court Act, SC 1887, c 16. The selection of the initial members of the Court reflected a desire to establish legitimacy to the public and achieve regional representation across Canada. The Supreme Court Act, 1875 also allocated two of the six positions to Quebec in recognition of the unique civil law system employed by the province. Of the seats not reserved for Quebec, Mackenzie would appoint two justices from Ontario, and two from outside central Canada.