Origins and Evolution of the “Doctrine of Discovery”

The so-called Doctrine of Discovery is not an ancient creed of the Catholic Church, but rather a legal concept born in the 19th-century United States. In fact, the term itself was coined by the U.S. Supreme Court in the 1823 case Johnson v. M’Intosh. In that landmark decision, Chief Justice John Marshall articulated a principle – drawn from what he believed was long-standing international law – that European nations gained title to lands they “discovered” in the New World, subject only to a diminished right of occupancy for the Indigenous inhabitants. This judicial invention retroactively bundled together several 15th-century papal decrees (or bulls) and other colonial charters under a single label, the “discovery doctrine,” creating a powerful legal fiction with far-reaching consequences. The result was a doctrine that asserted Christian European “discoverers” had a superior claim to non-Christian lands – a doctrine that would be used to justify the dispossession of Indigenous peoples for centuries to come. This report traces the origins of the Doctrine of Discovery and its evolution, clarifying the historical and theological misunderstandings that surround it.

Johnson v. M’Intosh (1823): How the U.S. Supreme Court Invented a Doctrine

The Doctrine of Discovery entered American jurisprudence through Chief Justice John Marshall’s opinion in Johnson v. M’Intosh (1823). In that case, the Supreme Court was asked to decide whose land title was valid: that of private citizens who had purchased land directly from an Indigenous tribe in the 1770s, or that of the U.S. government which later sold the same land to another party. Marshall seized this opportunity to set out a sweeping rule. He wrote that “discovery gave title to the government by whose subjects… it was made,” and that the discovering European nation gained the sole right to acquire the soil from the natives. In practical terms, this meant Native American nations could not sell or transfer land to anyone except the colonial sovereign (and by extension, the United States as successor). This doctrine was systematically articulated by Marshall and was not a longstanding term of art in 15th-century Europe. One Catholic commentary makes the point plainly: when Catholics speak of “doctrine” they mean Church teachings – but “the notion of the ‘doctrine of discovery’ actually refers to a legal doctrine” in jurisprudence, and “one of the first to articulate [it] systematically” was Justice Marshall himself.

Marshall’s opinion essentially invented a legal rationale to fill a void in property law that had emerged after American independence. During British colonial rule, the Royal Proclamation of 1763 had established that only the Crown could acquire land from Indigenous peoples, forbidding private purchases. That policy was continued in the early United States through the Trade and Intercourse Act of 1790. However, the new American Republic lacked a fully developed legal theory to justify its sovereignty over lands inhabited by Indigenous nations – especially in territories like Florida and Louisiana, which had been acquired from Spain and France and thus lay outside British common law traditions. In these cases, there was no Proclamation of 1763 governing prior Indigenous land rights. The Supreme Court answered this gap by invoking what it understood to be universal international law: the idea that, from the Age of Discovery onward, the European power which “discovered” a territory held absolute title against other Europeans and an ultimate title over Indigenous inhabitants.

Marshall’s Johnson decision thus retroactively grouped together historical practices and decrees under a single doctrine. He grounded the U.S. government’s land rights in a “supposed universal Christian doctrine of discovery,” claiming that for “nearly four centuries” this principle had been recognized by all European nations. In effect, the Court asserted that it was simply following an established rule of “the law of Christendom” inherited from Europe. As one legal historian summarizes, “Marshall invented a legal fiction” that Indigenous peoples “had no right to sell their land,” and that the United States had inherited a preeminent title by succession from European colonizers. This conveniently bolstered American claims in former French and Spanish territories: the Tennessee Supreme Court noted in 1835 that the principle must be upheld because “the title and value of Louisiana depend” on it. In other words, the U.S. could not very well question the legitimacy of Spain’s or France’s claims (which the U.S. had acquired by treaty) without undermining its own title in places like Florida and the vast Louisiana Purchase. Marshall’s doctrine provided a patina of legal continuity: “discovery” was treated as an established doctrine that the new American nation was simply applying in its courts.

The Johnson v. M’Intosh decision thus enshrined the Doctrine of Discovery into American law. It became the bedrock of federal Indian law, cited as authority to this day. In the short term, it meant that the Piankeshaw tribe’s sale of land to private buyers was deemed void – only the U.S. federal government could extinguish Indigenous title. In the longer term, Marshall’s reasoning set a precedent for all subsequent dealings: Native nations were considered to hold a mere right of occupancy, with ultimate ownership residing in the discovering sovereign. This precedent was followed and amplified by later courts. For example, the Supreme Court of Tennessee, on the American frontier, declared in Cornet v. Winston (1826) that in earlier ages the Pope’s grants of “infidel countries” were seen as legally binding – and that Protestant kings, after the Reformation, simply claimed the same authority for themselves to seize non-Christian lands. This interpretation grossly oversimplified history, but it was persuasive to American jurists of the era. In State v. Foreman (Tenn., 1835), the court went even further, proclaiming that “discovery gave title to assume sovereignty over, and to govern the unconverted natives” of the Americas, Africa, and Asia – and that this principle had been recognized as law for centuries. The Foreman court openly acknowledged that this doctrine’s origins lay in papal authority (“the Popes of Rome made [it]”), and even admitted the rule was “harsh” and “cruelly executed” by colonizers like the Spanish – yet it insisted that Americans must not “shrink from [this] principle” now. One justice in that case, Nathan Green, filed a reluctant concurrence noting the historical truth: he wrote that “the doctrines avowed in the bulls of the pope… were never maintained by the English monarchs, nor practised upon by the colonists,” and had been “condemned by all Protestant writers.” But such nuance was soon lost. The chief justice of Tennessee who penned the sweeping defense of discovery, John Catron, was elevated to the U.S. Supreme Court in 1837 by President Andrew Jackson. There, Justice Catron continued to cement the doctrine into federal law. In Marsh v. Brooks (1850), the U.S. Supreme Court favorably cited the Cornet decision’s historical analysis, and even in the late 20th century the Court was still echoing these precedents – Marsh was referenced in a 1985 ruling on Indigenous land rights. In short, what had begun as Marshall’s judicial contrivance became orthodoxy in American law: a “bad history” that was “embedded in Indian law precedent” by repeated citation.

Papal Bulls vs. Catholic Doctrine: Clarifying a Widespread Misconception

It is crucial to understand that the so-called “Doctrine of Discovery” was never a doctrine of the Catholic Church at all – and the papal documents often cited as its basis were not expressions of binding Church teaching. The Supreme Court and subsequent jurists treated a series of 15th-century papal bulls as if they formed a unified, authoritative doctrine licensing Christian conquest. This has led to widespread misconceptions that the Vatican created or endorsed a universal principle of Christian dominion over non‑Christian lands. In reality, the papal bulls in question were political instruments of their time, not theological pronouncements of timeless validity.

A papal bull is simply a formal letter or decree issued by the Pope, named for the bulla (seal) that authenticates it. Bulls can cover a vast range of matters – from mundane administrative decisions to significant doctrinal definitions – and their authority in Catholicism depends on context. Most bulls, especially those issued for temporal matters, do not constitute irreformable Church teaching. Catholic canon law and theology draw a sharp distinction between the Church’s magisterial doctrines (teachings on faith and morals, often defined by councils or ex cathedra papal statements) and other statements or actions of popes. The 15th-century bulls related to colonization were never affirmed by any ecumenical council or other binding magisterial act. They were not embraced as part of the deposit of faith; rather, they were legal-political grants made by Renaissance popes entangled in European power politics.

Even the Vatican itself has recently taken great pains to correct this misunderstanding. In March 2023, two Vatican dicasteries (departments) issued a formal statement addressing the “Doctrine of Discovery.” They acknowledged that some scholars have tried to trace this “doctrine” to certain papal bulls – notably Dum Diversas (1452), Romanus Pontifex (1455), and Inter caetera (1493). However, the Vatican emphatically rejected the notion that those texts represent Church teaching. “The ‘doctrine of discovery’ is not part of the teaching of the Catholic Church,” the statement declared, and “historical research clearly demonstrates that the papal documents in question… have never been considered expressions of the Catholic faith.” In other words, those bulls did not define doctrine – they were “written in a specific historical period and linked to political questions,” not to the Gospel or eternal truth. The Vatican further admitted that these bulls “did not adequately reflect the equal dignity and rights of Indigenous peoples,” and that their contents were “manipulated for political purposes by competing colonial powers” to justify immoral acts. This is a striking official acknowledgement that the Church’s role in colonialism was fraught with moral error. Yet it also underscores that the so-called doctrine of discovery was a secular legal construct – a framework of colonial law – rather than a Catholic dogma.

To understand this better, consider the key papal bulls often cited under the “discovery” banner and what they actually said. Pope Nicholas V issued Dum Diversas in 1452, granting the King of Portugal authority to wage war against Muslims and pagans in Africa and to reduce them to servitude. This was followed by Romanus Pontifex in 1455, which affirmed Portugal’s rights in newly explored lands along the African coast, including exclusive trade privileges and endorsement of further conquests. These bulls were part of the campaign against the Ottoman Turks and the scramble for West African trade, and they explicitly sanctioned the subjugation of non-Christians – including the enslavement of people encountered, in the name of spreading the faith. Four decades later, after Columbus’s voyage, Pope Alexander VI (Rodrigo Borgia) issued Inter caetera in 1493. This famous bull drew an imaginary north-south line in the Atlantic and granted Spain dominion over all lands “discovered” west of that line (while confirming Portugal’s claim to lands east of it). Alexander VI’s aim was to resolve the rivalry between the Catholic monarchies of Spain and Portugal by partitioning the non-Christian world between them. Notably, Inter caetera urged the Spanish crown to bring the “inhabitants” of these lands to Christianity, but it did not explicitly declare that non-Christians had no rights whatsoever – its primary effect was to justify Spanish claims against Portuguese encroachment. Indeed, one can read Inter caetera as saying that one Christian nation should not intrude on lands already claimed by another Christian nation. In essence it established a principle (sometimes called the “Law of Nations” in that era) that discovery by one European power excluded others from claiming the same territory. These bulls together provided a religious‑political endorsement for Iberian expansion, but they did not create an international law valid for all European powers – and certainly they were not teachings binding the conscience of Catholics in perpetuity.

The Fate of Inter Caetera and the Rejection of Early Colonialist Theology

It is a rich irony of history that the very papal bull most often associated with the “Doctrine of Discovery,” Inter caetera, was effectively nullified and ignored not long after it was issued. In 1494, just one year after Inter caetera, Spain and Portugal signed the Treaty of Tordesillas, moving the line of demarcation and mutually agreeing on their spheres of influence. This treaty, which had the effect of superseding the papal bull, was later endorsed by Pope Julius II (Ea quae pro bono pacis, 1506). Thus, Inter caetera’s division of the globe was short-lived even within the Catholic world. Moreover, Inter caetera never bound other European powers. By the early 16th century, the Protestant Reformation was underway, and nations like England and the Netherlands categorically rejected any claim of Papal authority over worldly territories. For example, in 1580, Queen Elizabeth I of England coolly replied to Spanish protests by asserting that “popes had no right to grant the world to princes,” that she “owed no allegiance to the Pope,” and that merely “passing by and discovering with the eye” was not the same as taking possession of land. Decades earlier, the French crown took a similar stance: when Spain objected to French expeditions in Canada, the French king countered (in 1541) that “Popes hold spiritual jurisdiction, and it does not lie with them to distribute land amongst kings.” He scoffed that discovery without actual occupation was meaningless – “passing by and discovering with the eye” did not confer property rights. In short, the other European powers repudiated the idea that Papal bulls alone could justify claims to newly found lands. They developed their own doctrines of colonization, emphasizing effective occupation, treaties with Indigenous peoples, or the concept of terra nullius (treating land as “empty” if not settled in a European agrarian sense). Far from universally accepting a “doctrine of discovery” from the Pope, the European powers were often at odds, each inventing legal rationales to suit their imperial ambitions.

Within the Catholic world itself, there was soon strong repudiation of the notion that Indigenous peoples lacked humanity or rights. The initial conquerors’ attitude – that non-Christian “heathens” could be dispossessed or enslaved – met with vigorous theological opposition by the mid-16th century. The most significant intervention came from Pope Paul III, who in 1537 issued the bull Sublimis Deus (also known by the title Sublimus Deus or Veritas Ipsa). In Sublimis Deus, Paul III unequivocally affirmed the full humanity and natural rights of the Indigenous peoples of the Americas. He condemned the idea, spread by some of the conquistadors, that the natives were like irrational animals or “dumb brutes” incapable of faith. Rebutting this, Paul III declared: “the said Indians and all other people who may later be discovered by Christians, are by no means to be deprived of their liberty or the possession of their property, even though they be outside the Christian faith; … nor should they be in any way enslaved.” Any actions to the contrary, he added, “shall be null and have no effect.” This papal pronouncement – which was intended as a general teaching to be obeyed – effectively nullified any prior permissions to enslave or dispossess Indigenous peoples. It is telling that the Vatican’s 2023 statement on the Doctrine of Discovery pointed to Sublimis Deus as evidence of the Church’s authentic teaching: “Numerous and repeated statements by the Church and the Popes” upheld the rights of Indigenous peoples, they noted, “for example, in the 1537 Bull Sublimis Deus...” In short, within a half-century of Columbus’s voyage, the highest authority in the Catholic Church formally recognized Indigenous peoples as true owners of their land and forbade their enslavement.

In addition to the papacy, Catholic theologians and missionaries became outspoken advocates for Indigenous rights. The Dominican friar Bartolomé de las Casas, who witnessed the brutal exploitation of Indigenous Caribbean populations, emerged as a fierce defender of Indigenous humanity. Starting in 1510s and later as Bishop of Chiapas, Las Casas argued that the colonizers’ abuses were sinful and that Indigenous people should be treated as equals, capable of reason and faith. He famously participated in the 1550 Valladolid debates, opposing Sepúlveda’s view that “barbarian” natives could be subjugated. Another towering figure, Francisco de Vitoria, a theologian of the University of Salamanca, delivered lectures in 1539 that dismantled the legal justifications for Spanish conquest. Vitoria asserted that the Indigenous peoples possessed true dominion over their lands and that “the Spanish discovery of the Americas provides no support for possession of these lands, any more than it would if they had discovered us.” He rejected the notion that the pope or Christian princes could simply claim sovereignty over the New World. Such voices helped develop the beginnings of international law and natural law theory that recognized certain rights of native peoples. Indeed, the field of international law owes much to these debates: jurists like Hugo Grotius later echoed that “discovery… gives no right to sovereignty over inhabited land”, arguing that only lands truly uninhabited (res nullius) could be freely claimed. By the 17th century, it was a respected position among European thinkers that mere discovery was insufficient title if the land was already populated and used by others.

It is therefore clear that the “Doctrine of Discovery” was never a settled doctrine in the era of discovery itself. It did not go unchallenged even in Catholic spheres – and outside Catholicism, Protestant nations explicitly denied its validity. Pope Alexander VI’s bull Inter caetera – often portrayed as the keystone of European colonialism – was, in historical fact, “a historic remnant with no juridical, moral or doctrinal value,” as a Vatican spokesman would later describe it. The Holy See’s representative to the United Nations stated in 2010 that Inter caetera had been abrogated as early as 1494 by subsequent papal acts and agreements. From the standpoint of Catholic theology, Inter caetera holds no doctrinal weight; from the standpoint of European international relations, it quickly became moot when nations followed their own interests. Its lasting legacy was not as a Church teaching, but as a misunderstood symbol – one that, centuries later, American judges and some colonial administrators would seize upon to lend an aura of legitimacy to their own claims.

How American Law Turned Myth into Reality: Legal Fiction and Consequences

If the “Doctrine of Discovery” was neither a universal principle of European international law nor a tenet of the Catholic faith, how did it come to entrench itself in modern legal systems? The answer lies in the peculiar needs of the post-Revolutionary United States and the willingness of its jurists to construct a usable past. In the early 19th century, American courts faced disputes over land titles that required defining the legal status of Indigenous land rights. Lacking a straightforward precedent in Anglo-American common law (beyond the relatively recent 18th-century British Royal Proclamation), judges looked back to the age of discovery for guiding principles. In doing so, they selectively cited history – and sometimes outright distorted it – to craft a doctrine that suited colonial interests.

Chief Justice Marshall’s opinion in Johnson v. M’Intosh is the prime example of this historical cherry-picking. Marshall cited earlier charters and the practices of “civilized” nations, suggesting that from the first voyages of Columbus and Cabot, it was an accepted rule that Christian European explorers could claim dominion over “heathen” lands, subject only to one another’s competing claims. He referenced how European monarchs had acted under this principle and implied it was a general law of nations. What Marshall did not acknowledge is that this principle was heavily contested and far from uniform historically. Early American judges, as noted, even invoked the authority of papal bulls like Inter caetera to explain the origins of title – essentially crediting the Pope for a doctrine that Protestant England had always disavowed.

The irony is stark: American Protestant jurists in young Tennessee or the U.S. Supreme Court found themselves leaning on a Catholic pope’s 1493 words (misinterpreted at that) to justify taking land from Native Americans. As one analysis puts it, American legal precedent got things backwards – “Those present [at a 2016 protest burning copies of Inter caetera] believed, as do many activists today, that Inter caetera was the basis for… U.S. claims to the land… Early American legal precedent took this view. But that belief is wrong as a matter of history.” The English, in reality, had only ever treated Inter caetera as a foil – a symbol of Catholic Spain’s arrogance, to be repudiated – not as a source of their own rights. Yet Marshall and his successors wove a narrative in which the United States, via Britain, inherited this “Doctrine of Discovery.” In 1823, this might have appeared a convenient filling of a gap in legal theory; in hindsight, it was a potent legal fiction that ignored centuries of contrary evidence.

The consequences of this legal fiction have been enormous. By reducing Indigenous nations to mere occupants on their own lands, with no power to alienate land except to the colonial government, the U.S. Supreme Court paved the way for unilateral domination. The Johnson ruling became “the foundation of all American [Indian] law” and was used to validate the massive transfer of territory from tribes to the U.S. government (whether by treaty, sale, or conquest) throughout the 19th century. It also bolstered the ideology of Manifest Destiny, reinforcing the idea that Euro-Americans had a sort of preordained right to expand across the continent. Legally, Indigenous peoples were treated as dependents under the guardianship of the government, since they could not freely dispose of land – an idea explicitly rooted in discovery doctrine. Even in the modern era, the ghost of Johnson v. M’Intosh lingers. As late as 2005, the U.S. Supreme Court (in City of Sherrill v. Oneida Indian Nation) cited the doctrine of discovery to deny the Oneida Nation sovereignty over reacquired traditional lands. Justice Ruth Bader Ginsburg, writing that decision, invoked Johnson and two centuries of precedent following it, underscoring how deeply ingrained the doctrine remains in American property law.

It is important to note that not all American jurists were entirely comfortable with the doctrine, even as they applied it. The Supreme Court’s later decision in Worcester v. Georgia (1832), also authored by Marshall, took a more sympathetic view of Indigenous sovereignty (holding that tribes are distinct political communities with their own inherent rights). Some scholars see Worcester as a partial retreat from the harsh implications of Johnson. But even so, the core premise of discovery – ultimate dominion of the colonial power – was never overturned. In Mitchel v. United States (1835), a case dealing with the Forbes Purchase in Spanish Florida, the Supreme Court reaffirmed the discovery doctrine in an international context. There, private purchasers had obtained a large tract of Florida land from the Creek and Seminole, but crucially with Spanish colonial approval. When Florida became U.S. territory, the question was whether that transaction was valid. The Court ultimately upheld the claim (since Spain had authorized it), but in doing so it endorsed Marshall’s discovery rule from Johnson, anchoring U.S. title in the fact that Spain’s rights (themselves based on discovery and colonization) had passed to the United States. The Mitchel decision thus demonstrated how the Johnson doctrine would govern even beyond the original 13 colonies – it applied to former French and Spanish domains, ensuring continuity of the colonial property regime. In essence, Johnson gave the U.S. a legal tool to consolidate all its territorial acquisitions under a single theory: the discovering European nation (and its successor state) holds ultimate title. This was a convenient doctrine of convenience, born not of enduring truth but of immediate necessity.

As a result of this entrenched precedent, the “Doctrine of Discovery” has come to be recognized by many scholars, judges, and Indigenous leaders as exactly what Marshall created: a legal fiction. Retired Canadian Justice Mauricena LaForme (of the Ontario Court of Appeal), an Indigenous jurist, bluntly stated, “It’s a legal fiction. It’s not law.” in reference to the idea that European discovery could alone confer title. Yet fiction or not, when a concept is embedded in judicial decisions, it exerts real force. That force has been destructive. It provided the juridical foundation for centuries of dispossession: the reduction of Indigenous peoples to dependent wards, the seizure of their lands, and the denial of their full sovereignty. It has been invoked to justify breaking of treaties and the unilateral extinguishment of native title. In the view of the United Nations, the doctrine of discovery is “the foundation of the violation” of Indigenous peoples’ human rights in colonized lands. In 2007, when the U.N. adopted the Declaration on the Rights of Indigenous Peoples affirming Indigenous land rights, it was no coincidence that the only four states to vote against it were the United States, Canada, Australia, and New Zealand – all countries whose legal systems had been influenced by discovery doctrine. (All four have since endorsed the declaration, reversing their votes.)

Over the past decade, there has been a growing movement to repudiate the Doctrine of Discovery. Many Christian churches – including several Protestant denominations – have passed resolutions formally rejecting it as contrary to their faith and as a contributing ideology to racism and colonialism. The doctrine has been denounced as “heresy” by bodies like the World Council of Churches and the Unitarian Universalist Association. In Canada, the Truth and Reconciliation Commission (2015) called on churches to disavow concepts used to justify European sovereignty over Indigenous peoples, and both the TRC and the Canadian Royal Commission on Aboriginal Peoples have urged the Canadian state to remove the doctrine of discovery from its legal foundations. In the United States, Indigenous activists have for years pointed out the fallacy at the heart of federal Indian law – Vine Deloria Jr., the noted Standing Rock Sioux scholar, observed that the “doctrine of discovery” as such “took on life only later” in history, long after the original bulls, and was largely a retroactive construction. This scholarship and activism finally led to the historic statement from the Vatican in 2023, where the Church – responding to Indigenous Catholics and others – formally repudiated the Doctrine of Discovery as “not part of Catholic teaching” and inconsistent with the rights of Indigenous peoples.

The Doctrine That Never Was

The “Doctrine of Discovery” as popularly understood is built on a misunderstanding. It was not a doctrine handed down from the 15th-century Popes to the world, nor a consensual rule embraced uniformly by all colonizing nations at the dawn of European expansion. Rather, it was a 19th-century American juridical formulation, one that retroactively stitched together disparate historical threads – including misinterpretations of papal bulls – to serve an exigent need in U.S. law. This legal doctrine filled the void left by the demise of British imperial structures, providing a rationale for U.S. supremacy over Indigenous lands in the new republic. Unfortunately, the Marshall Court’s selective history gave the imprimatur of legitimacy to what was, at its core, the age-old principle of might makes right dressed in legal garb. It converted contested religious and moral claims into hard legal rules, and those rules facilitated the dispossession of countless Indigenous nations.

Today, with the benefit of historical hindsight and moral clarity, we can see that the so-called Doctrine of Discovery lacks any valid authority – legal, moral, or doctrinal – in our contemporary world. The Catholic Church has explicitly declared that those old bulls “have no juridical or doctrinal value” and never did, in terms of defining the faith. Leading jurists and institutions recognize that the doctrine rests on flawed history and violates fundamental human rights. Correcting the record is more than an academic exercise; it is part of dismantling the ongoing legacy of colonialism. As the Vatican’s 2023 statement urged, we must “recognize these errors,” renounce the unjust concepts that denied Indigenous dignity, and work towards healing and reconciliation. In simple terms, it is time to bury the Doctrine of Discovery as a legal fiction of a bygone era, and ensure that in law and in life, Indigenous peoples are fully acknowledged as equal peoples with inherent rights to their lands and cultures – rights that no “discovery” can erase.

Avoiding the Royal Proclamation of 1763: Marshall’s Maneuver

It is significant that Marshall did not base the Johnson decision on the Royal Proclamation of 1763, even though that British decree directly forbade private land purchases from Indigenous peoples in much of North America. The Royal Proclamation was issued by King George III after Britain’s victory over France in the Seven Years’ War, and it reserved all lands west of the Appalachian Mountains as “Indian territory” under the Crown’s protection. It stated that only the Crown (not private individuals) could acquire land from the Indigenous nations, and it nullified any private purchases made without Crown consent. In effect, the Proclamation of 1763 was a clear recognition by the British of Indigenous land rights – at least to the extent that Indigenous peoples were to be dealt with by treaty or purchase, rather than simply dispossessed. One might expect that this British law, which was well-known to the American colonists, could have provided an easy rationale to invalidate Johnson’s claim (since his land deal occurred in 1773, in violation of the Proclamation).

Marshall did mention the Proclamation as an “additional objection” to the plaintiffs’ title. He acknowledged that the 1763 edict explicitly “reserved [western] lands … for the use of the Indians” and strictly forbade British subjects from making any private purchases or settlements on those lands. This meant Johnson’s 1773 purchase from the Illinois and Piankeshaw was illegal under British law at the time. However, Marshall carefully avoided relying solely on the Proclamation as the basis of his decision. There were likely a few reasons for this. First, by 1823 the United States was an independent country, and the Royal Proclamation was an act of the British Crown – its direct legal force in U.S. courts was debatable. Marshall did not want to hang his reasoning on a colonial law that Americans might view as obsolete or inapplicable after the Revolution. Second, the plaintiffs in Johnson had argued the Proclamation was invalid or inoperative (citing cases like Campbell v. Hall (1774) which limited the King’s power to legislate by proclamation in colonies that had local assemblies). Marshall sidestepped that debate. He pointed out that even if the 1763 Proclamation’s specific provisions were limited, the underlying principle it reflected – that only the sovereign could acquire Indian lands – was well established. In Johnson, he wrote that although the King could not tax colonies without consent, “the powers of granting, or refusing to grant, vacant lands, and of restraining encroachments on the Indians, have always been asserted and admitted.” In other words, the Crown’s exclusive control over land disposition and Indian trade was valid, and that power simply passed to the American government upon independence.

By framing the decision in terms of broader “Discovery” doctrine and post-Revolution continuity, Marshall avoided any implication that Indigenous peoples had inherent rights under British imperial law that might bind the U.S. going forward. Invoking the Royal Proclamation too heavily could have been seen as acknowledging that the British Crown had formally guaranteed Indian land rights (albeit temporarily and revocably). Marshall likely feared that line of reasoning – treating Indigenous nations as having had a form of lawful sovereignty or ownership recognized by Britain – could undermine the U.S. claim to absolute title. After all, if the Proclamation was read to imply Indigenous peoples owned the land except for a Crown preemption right, one might argue those rights survived the American Revolution and still constrained U.S. authority. Marshall’s solution was to subsume the Proclamation’s effect into the doctrine of discovery’s framework: yes, private purchases were invalid, but not because King George’s 1763 decree said so per se; rather, because from the outset the international and colonial legal order only ever gave Indigenous peoples a limited right of occupancy, with no capacity to alienate land except to the sovereign. This move allowed the Court to assert that the rule barring private purchases was “necessarily … admitted” as an American legal principle, rather than a lingering British law.

In sum, Marshall avoided elevating the Royal Proclamation to the foundation of his decision, even though he “considered, and with reason,” that it bolstered the outcome. By doing so, he transformed what could have been seen as a specific imperial policy into a more sweeping American doctrine rooted in the law of nations and the historical reality of colonization. This finesse ensured that the Johnson v. M’Intosh ruling rested on American jurisprudence and the universalized Discovery Doctrine, sidestepping any discussion that might imply Indigenous peoples had enforceable rights under British promises. The result was a judgment that secured U.S. sovereignty and the property rights of its grantees – but at the moral cost of affirming a principle that one legal scholar bluntly describes as “[the] racist doctrine of discovery” and its denial of full Indigenous property rights.

Transmission to Canadian Law: From Marshall to the Privy Council

The Doctrine of Discovery, as formulated by Marshall, did not remain confined to the United States. It was imported into Canadian law through the common law – initially via British colonial policy and later by court decisions. The key moment came in St. Catharine’s Milling & Lumber Co. v. The Queen (1888), a case decided by the Judicial Committee of the Privy Council (then the highest appellate court for Canada). St. Catharine’s Milling involved a dispute between the federal government of Canada and the province of Ontario over who owned lands that had been ceded by Treaty 3 with the Ojibwe. To resolve the issue, the Privy Council had to determine the nature of Aboriginal title in Canadian law and how it fit with Crown sovereignty and provincial property rights.

In Lord Watson’s influential opinion, the Privy Council effectively echoed the logic of Johnson v. M’Intosh. Watson identified the 1763 Royal Proclamation as the source of whatever legal title Indigenous peoples in Canada possessed, but he emphatically rejected the idea that Indigenous nations retained full ownership. Ontario’s lawyers had argued that since the Proclamation acknowledged those western lands had never been purchased by the Crown, perhaps “the entire property of the land remained with [the Indians]” until treaty cession. Watson disagreed, stating that such an inference was “at variance with the terms of the [Proclamation], which show that the tenure of the Indians was a personal and usufructuary right, dependent upon the good will of the Sovereign.” In other words, Indigenous peoples had only a use-right in the land – the right to live on it and benefit from it – but not full ownership in fee simple. The land itself was considered “part of the Crown’s dominions” from the outset of British claim. The Proclamation reserved these lands for Indigenous use “for the present” under the Crown’s protection, implying a temporary and limited right, not permanent independent ownership. Watson concluded that “a substantial and paramount estate, underlying the Indian title, has been all along vested in the Crown, which became a plenum dominium (full ownership) whenever that title was surrendered or otherwise extinguished.”

This 1888 ruling cemented in Canadian jurisprudence the same fundamental principle Marshall had laid down in 1823: the Crown holds the underlying title to all land by virtue of discovery (and assertion of sovereignty), while Indigenous nations hold only a burden or encumbrance upon that title (Aboriginal title) that amounts to a right of occupancy and use. Upon surrender (through treaty) or extinguishment of the Aboriginal title, the Crown’s title becomes absolute (plenum dominium). The St. Catharine’s Milling decision thus firmly wove the Discovery Doctrine into Canadian common law. Indeed, contemporary commentators note that “the doctrine was imported into Canadian law through the St. Catherine’s Milling decision” and became the basis for the Crown’s claimed sovereignty over Indigenous lands in Canada. For more than 80 years after 1888, this case was the leading precedent on Aboriginal title in Canada, frequently cited to deny or circumscribe Indigenous land rights. Canadian courts routinely repeated that First Nations had no beneficial title to land – only a permissive occupancy that could be revoked by the Crown.

The Case of British Columbia: “No Conquest, No Treaty”

The westernmost region of Canada, British Columbia (B.C.), provides a revealing example of how the Discovery Doctrine operated in practice via the common law. Unlike many parts of Canada, British Columbia was never formally conquered by military force from another colonial power, nor was it broadly ceded by treaties with Indigenous peoples (with a few limited exceptions). When the British began settling and asserting authority in what is now B.C. in the mid-19th century, they did so largely unilaterally. Sir James Douglas, governor of the Colony of Vancouver Island, made a handful of small treaties (the “Douglas Treaties” of 1850–1854) on Vancouver Island, purchasing village sites and fields from some First Nations. But over 95% of the vast mainland and northern territories of B.C. were taken without any treaty or purchase. Nor was there a war of conquest against the First Nations of the B.C. interior and north – the region was simply claimed by the British Crown through discovery, occupation and declaration (a process formalized by the extension of British law and the establishment of colonial government in 1858 and 1866).

This absence of a clear legal event (treaty or conquest) transferring Indigenous lands to the Crown in B.C. meant that, in theory, Aboriginal title to the land was never extinguished prior to the modern era. Nevertheless, British and later Canadian authorities proceeded on the assumption of Crown sovereignty and underlying title, consistent with the Doctrine of Discovery. Colonial officials like Joseph Trutch (B.C.’s first Chief Commissioner of Lands after confederation) flatly denied that Indigenous peoples had ever owned the land, describing it as Crown land occupied by Indians at the Crown’s sufferance. B.C. allotted small reserves to First Nations, but recognized no Aboriginal title to the rest – reflecting the doctrine that, by virtue of discovery and assertion, the Crown already “owned” the territory, notwithstanding the lack of conquest or purchase. In legal disputes, Canadian courts upheld this view. For example, in R. v. White and Bob (1964), a case about an Aboriginal hunting right in B.C., the judges reiterated that under St. Catharine’s Milling and the Proclamation, Indigenous peoples did not hold full title to land – only a royal-permission-type right, “not a fee simple” estate in their lands. The Supreme Court of Canada affirmed that understanding in the mid-20th century, entrenching the doctrine that all of B.C., though never ceded by treaty, was Crown land subject at most to Aboriginal use rights.

It was not until 1973 (in the Calder case) that a Canadian court formally acknowledged the potential existence of “Aboriginal title” in B.C. at all – and even then, the Court split on whether that title had been extinguished. In subsequent decades, Canadian jurisprudence evolved: the Constitution Act 1982 recognized and affirmed existing Aboriginal and treaty rights (Section 35), and cases like Delgamuukw v. British Columbia (1997) and Tsilhqot’in Nation v. British Columbia (2014) elaborated the legal content of Aboriginal title (a beneficial interest in the land, including the right to decide how it is used). In Tsilhqot’in (2014), the Supreme Court of Canada made history by issuing the first declaration of Aboriginal title on a specific tract of land, confirming the Tsilhqot’in people’s ownership of 1,700 km² of their traditional territory. Notably, the Tsilhqot’in judgment took pains to clarify that “the doctrine of terra nullius (that no one owned the land prior to European assertion of sovereignty) never applied in Canada”. In other words, Canadian law now formally rejects any notion that the land was legally empty when Europeans arrived or that Indigenous peoples had no property rights. This marked a partial repudiation of the reasoning underpinning the Discovery Doctrine. The Court recognized that Indigenous nations held title to the land at the time of assertion of European sovereignty – a title that survives today unless validly extinguished or surrendered.

However, it is critical to note that even as Canada’s highest court affirms the existence of Aboriginal title, it has not questioned the Crown’s underlying sovereignty or ultimate title. In Tsilhqot’in, the Supreme Court was clear that its decision did not overturn the basic principle that Crown radical title underlies Aboriginal title (a principle going back to St. Catharine’s Milling). The Court also held that Aboriginal title, while giving Indigenous groups robust rights to use and manage land, is not absolute – the Crown can infringe upon or override Aboriginal title for a compelling public purpose, provided it meets a strict justification test. This means that the colonial framework recognized in Johnson and St. Catharine’s is still operative: the Crown’s sovereignty is assumed to be valid (thanks to “discovery” and historical assertion, not conquest or treaty in B.C.), and Indigenous rights, including title, exist within that sovereignty and are subject to limitation. Many First Nations in British Columbia continue to press for the negotiation of modern treaties or other agreements to reconcile their pre-existing sovereignty with that of the Crown. Until then, the legal status quo – a product of the Doctrine of Discovery – is that, despite the lack of conquest or cession, the Crown’s claim to B.C. is de facto accepted, with unextinguished Aboriginal title viewed as a burden on the Crown’s title that must now be defined and resolved by courts or negotiations.

Doctrine of Discovery vs. Doctrine of Conquest: A Legal Contrast

It is helpful to contrast the Doctrine of Discovery with its counterpart, the Doctrine of Conquest, to understand how each was applied and the different legal consequences for Indigenous peoples or prior inhabitants. Both doctrines were historically recognized means of acquiring territory, but they operated in distinct contexts:

• Discovery Doctrine: applied when European explorers encountered lands not under the sovereignty of any Christian (or “civilized”) state. It presumed the indigenous inhabitants had no recognized government that Europeans were bound to respect in international law. Thus, the first European power to discover and occupy such territory could claim sovereignty. The native inhabitants, in this framework, were not treated as sovereign owners of the land; at best, they were deemed occupants with limited rights. European discovery, in effect, nullified any other claims to ultimate title. This was justified by characterizing the land as “empty” (terra nullius) or the people as uncivilized heathens lacking proper law. The legal effect: Indigenous polities lost independence and the power to dispose of land, which became vested in the colonizing empire (subject to whatever occupancy rights or treaties the empire chose to allow).
• Conquest Doctrine: applied when a territory was acquired by defeating an existing sovereign power (typically another European or organized state) through war. In classical international law, conquest followed by a peace treaty could transfer sovereignty from the vanquished to the victor. However, unlike discovery, conquest implicitly recognized the prior existence of a sovereign and a legal order among the conquered people. Under British and European practice, a conquered territory did not automatically become a legal blank slate. Rather, the general rule was that the pre-existing laws and property rights of the conquered land’s inhabitants remained in force until the new sovereign chose to change them. Conquest did not inherently strip individuals of land ownership; it mainly changed who wielded ultimate political authority.

Historical examples illustrate these differences:

• The British conquest of Quebec (New France) in 1759–1760 (formally recognized by the Treaty of Paris in 1763) was a classic conquest scenario. France was a recognized sovereign power in Quebec, with its own legal system (French civil law, seigneurial land tenure) and a predominantly French settler population alongside Indigenous nations in the region. When Britain conquered and annexed Canada, it initially attempted to impose English common law and institutions on the new subjects. However, within little over a decade, Britain reversed course with the Quebec Act of 1774, which guaranteed French Canadians the restoration of their civil law and property rights, and free practice of the Catholic religion. This was done to assure the loyalty of the French populace. In other words, Britain chose to respect much of the existing social and legal order in the conquered territory – an acknowledgment that the French inhabitants had legitimate property and customs that would continue under British rule. Indigenous peoples in Quebec were addressed separately (via the 1763 Proclamation’s system of negotiated cessions), but importantly, Britain did not treat the French-settled parts of Quebec as terra nullius or French landowners as having no rights.
• By contrast, in regions acquired under the Doctrine of Discovery, European powers tended not to recognize any existing property rights beyond aboriginal occupancy, and often not even that for long. For example, when the British colonized Australia starting in 1788, they deemed it a settled colony on “unoccupied” land (despite the presence of Indigenous Australians). Under the discovery/settlement rationale, English law was imported entirely, and Indigenous Australians were not recognized as having sovereignty or property rights – a stark application of terra nullius. Similarly, in the Americas, discovery doctrine allowed colonial powers to largely ignore Indigenous peoples’ property systems. Colonizers considered the land to belong to the Crown from the start, aside from usage rights they might grant to Indigenous inhabitants.
• Another example of conquest can be seen in the Spanish Reconquista of the Iberian Peninsula. The fall of Granada in 1492 – the last Muslim-ruled kingdom in Spain – was achieved by force of arms. The Treaty of Granada (1491), which negotiated the terms of the Moorish surrender, initially promised the Muslim inhabitants certain protections: the right to continue practicing Islam, to be free from persecution, and to retain their property and laws. This is typical of conquest treaties – the conquering monarchs Ferdinand and Isabella granted guarantees to the conquered population to smooth the transition of power. Unfortunately, within a few years, these promises were broken: by 1499–1502, the Spanish authorities forced conversions and eventually expelled the unconverted Muslim population. The Treaty of Granada’s guarantees were nullified, showing that the conqueror could and did revoke the initial legal accommodations. But the need for a formal revocation highlights that, initially, the Moors’ rights were acknowledged under the conquest agreement. Spain did not claim to have “discovered” the Kingdom of Granada; they conquered it.

In summary, under the Doctrine of Conquest, because the conquered people were considered to have an organized society and title to their lands, the conquering power often acknowledged existing rights. Under the Doctrine of Discovery, European powers denied that the indigenous inhabitants had any comparable sovereignty or property rights in the first place – which made it easier, legally and morally, to dispossess them.

Enduring Legacy and Modern Implications

Marshall’s doctrine of 1823 may seem antiquated, but it continues to form the foundation of some property law today. In the United States, Johnson v. M’Intosh has never been overturned. It remains black-letter law that Native American tribes hold limited title (usufructuary rights) to their reservations, and ultimate ownership of all U.S. land traces back to the sovereign (federal or state) via the doctrine of discovery. This notion explicitly surfaced in modern Supreme Court decisions. For instance, in City of Sherrill v. Oneida Indian Nation (2005), Justice Ruth Bader Ginsburg, writing for the majority, opened with a footnote reminding that under the “doctrine of discovery” established in Johnson, “fee title to the lands occupied by Indians when the colonists arrived became vested in the sovereign – first the discovering European nation and later the original States and the United States.”

In Canada, the legacy is more complex due to constitutional and legal changes in the last half-century, yet the Discovery Doctrine’s imprint remains visible. The concept of Crown underlying title – that the Crown acquired radical title to all land, with Indigenous peoples having at most a burden of Aboriginal title – is still a pillar of Canadian law. Courts have increasingly recognized and affirmed that Aboriginal title exists and must be honored, but they do so within a framework that assumes the legitimacy of Crown sovereignty gained originally by European assertion. The Supreme Court of Canada’s 2014 statement that terra nullius never applied in Canada is a rejection of the most extreme form of the Doctrine of Discovery. However, Canada has not renounced the doctrine of discovery’s core legal consequence: that the Crown has ultimate title. In effect, Canadian law now says: Indigenous peoples did have prior territorial rights and even title, but these now exist subject to the Crown’s overall sovereignty and can be regulated or infringed for valid reasons. No Canadian court has openly repudiated Johnson or St. Catharine’s Milling; instead, they have tried to mold a more equitable common law doctrine (Aboriginal title) on top of the old foundation.

There is a growing movement to confront this question. Internationally, Indigenous peoples’ organizations and the United Nations have condemned the Doctrine of Discovery as a violative concept. The 2007 UN Declaration on the Rights of Indigenous Peoples (UNDRIP), which both Canada and the US have now endorsed, implicitly rejects colonial doctrines like discovery and terra nullius, affirming Indigenous peoples’ rights to lands and resources which they have traditionally owned or occupied. Canada’s own Truth and Reconciliation Commission in 2015 echoed this in Call to Action #45, urging the repudiation of concepts used to justify European sovereignty over Indigenous peoples and lands. In 2022, when Pope Francis visited Canada to apologize for the Church’s role in residential schools, Indigenous leaders specifically called on him to renounce the papal bulls underlying the Doctrine of Discovery. This culminated in March 2023 with a remarkable development: the Vatican formally issued a statement repudiating the Doctrine of Discovery. The Vatican acknowledged that those 15th-century decrees “did not adequately reflect the equal dignity and rights of Indigenous peoples” and that they were manipulated by colonial powers for unjust ends.

Yet, as Indigenous legal scholars observe, the Vatican’s statement may not lead to significant changes to Canadian law on its own. The hard work of decolonizing legal systems remains. In the U.S., some lawyers and judges have begun to question Johnson openly. In Canada, there is cautious progress in the courts, but more dramatic change might come from legislation or negotiated agreements. In 2021, the Canadian parliament passed legislation committing to align Canadian law with UNDRIP, which could eventually force a re-examination of doctrines incompatible with Indigenous self-determination – potentially including the remnants of Discovery Doctrine thinking.

The legal and moral implications of continuing to invoke the Doctrine of Discovery are profound. Legally, it means that Indigenous peoples are often stuck arguing within a framework defined by their colonizers. They must often frame claims in terms of Aboriginal rights granted or recognized by the Crown, rather than as inherent rights of independent nations. Morally, relying on the Discovery Doctrine or its assumptions perpetuates a legacy of racial hierarchy – the very idea that one group’s law and culture can nullify another’s rights to land and self-government. It stands at odds with modern values of human rights and equality. As courts and governments reckon with this legacy, they face a difficult balance. Dismantling the Doctrine of Discovery in law would call into question the validity of property titles and state sovereignty over vast areas – a revolutionary prospect that few states are willing to entertain. But incremental steps are being taken to at least repudiate the doctrine’s spirit and soften its consequences. These include court decisions acknowledging Indigenous title, government negotiations for land settlements and self-governance, and public acknowledgments that colonial claims were unjust.

The Doctrine of Discovery has traveled a long road: from papal edicts justifying crusades against “infidels,” to a doctrine of international law used by European empires, to a principle of constitutional law in the U.S. (via Johnson v. M’Intosh) and the British Commonwealth (via cases like St. Catharine’s Milling). It transformed from a religiously framed mandate into a secular legal rule – but at its core, it always served to elevate the rights of colonizers over the rights of Indigenous peoples. The doctrine’s twin, the Doctrine of Conquest, operated in parallel, but even conquest at least admitted the prior rights of the vanquished in a way “discovery” did not. The lasting influence of the Discovery Doctrine in American and Canadian law has been immense, shaping the very maps of these nations. Today, at long last, it is being openly questioned. The task for modern jurisprudence is how to disentangle our legal systems from this archaic doctrine of domination. Fully casting off the Doctrine of Discovery would involve not only rejecting its legitimacy in words, but also addressing its effects – the dispossession of Indigenous peoples – through restitution, compensation, and a new framework of relationship. That is a challenge still before us. As we rewrite our narratives and laws to reflect justice and equality, we must remember that doctrines, no matter how venerable, are not immutable. They were created by people and courts, and they can be changed by them. The story of the Doctrine of Discovery is a cautionary tale of how law can be used to entrench injustice – and, one hopes, an inspiration to reform those laws to uphold the dignity and rights of all peoples going forward.