Bartolomé de las Casas: Defender of the Indigenous Peoples of the Americas

Bartolomé de las Casas stands as one of the most remarkable and paradoxical figures in the history of the European encounter with the Americas. Born into a Seville merchant family that participated in the earliest voyages of discovery, he arrived in the New World as a young man fully prepared to benefit from the colonial system then being established across the Caribbean. He received an encomienda — a grant of land and indigenous labor — and participated in military expeditions against the native peoples of Cuba and Hispaniola with little apparent moral discomfort. Then, in middle age, he underwent one of the most dramatic conversions in the history of European colonialism, renounced his encomienda, returned his indigenous laborers to colonial authorities, and devoted the remaining five decades of his long life to an unrelenting campaign on behalf of the rights and dignity of the peoples whose subjugation he had once helped to facilitate.

The trajectory of his life — from participant to critic, from encomiendero to defender, from colonial insider to its most implacable enemy — makes him a figure of enduring historical importance. His writings, especially the Brief Account of the Destruction of the Indies, shocked European audiences with their graphic depictions of Spanish atrocities and helped to ignite one of the earliest public debates about the morality of colonial conquest. His arguments at the great Valladolid debate of 1550 to 1551 established foundational principles about the natural rights of indigenous peoples that echo through the history of human rights thought to the present day. His advocacy contributed directly to the promulgation of the New Laws of 1542, which attempted — with very limited success — to reform the most brutal aspects of the encomienda system.

He was also a man of his time and of his limitations. His early advocacy of African slave labor as a substitute for indigenous forced labor — a position he later repudiated with evident remorse — stands as a permanent moral stain on his record. His methods were sometimes intemperate, his rhetoric sometimes extreme, and his practical proposals for reform sometimes naive or even counterproductive. He could be arrogant, inflexible, and politically tone-deaf. But these flaws do not diminish the essential importance of what he did and what he stood for. In an age when the standard European view of indigenous peoples held them to be subhuman or at best permanent children requiring European tutelage and discipline, Bartolomé de las Casas argued consistently and forcefully that they were fully rational human beings endowed with the same natural rights as any European — and that the colonial system that was destroying them was a crime against God and humanity.

Early Life in Seville and the World of the First Voyages

The city into which Bartolomé de las Casas was born in 1484 was one of the most dynamic and consequential places in the late fifteenth-century Mediterranean world. Seville stood at the intersection of Atlantic and Mediterranean trade networks, its merchants connected to the wool and textile trades of Castile, the slave and gold trades of West Africa, and the commercial circuits that linked Spain to the Italian city-states, Portugal, Flanders, and England. The city's population was diverse — home to Castilians, Genoese merchants, converted Jews whose families had accepted baptism under pressure in 1391 or compulsion in 1492, and the enslaved Africans who increasingly appeared in its markets and households as the Portuguese slave trade from West Africa expanded through the fifteenth century.

Into this world, Pedro de las Casas, Bartolomé's father, was a prosperous merchant of no particular distinction — a man of the middle ranks of Sevillian commercial society, ambitious for his family and connected enough to the circles around Columbus to secure a place on the second voyage in 1493. Bartolomé, as a child of nine in 1493, reportedly witnessed Columbus's triumphant return through the streets of Seville, watching the exotic peoples and objects that the admiral displayed as proof of his discoveries. This early encounter with the New World — mediated through the spectacle of Columbus's pageantry and the implicit promise of wealth and adventure — shaped the imagination of the young Bartolomé in ways that neither he nor anyone else could have predicted.

Pedro de las Casas returned from the Caribbean with a young indigenous person whom he gave to his son as a companion. Accounts of this episode suggest that Bartolomé was uncomfortable with this arrangement and that the indigenous companion was eventually returned to Spanish authorities. Whether this early discomfort reflected genuine moral unease or simply the awkwardness of a privileged child with an unexpected gift is difficult to determine from the distance of five centuries, but it is part of the biographical tradition that Las Casas himself helped to construct in his later writings.

Bartolomé received an education appropriate to his social station and his father's ambitions for him. He studied Latin, theology, and law — the curriculum that prepared young men of his class for careers in the church, the royal bureaucracy, or the legal professions. He received the tonsure, the ceremonial haircut that marked admission to the clerical state, before departing for the New World, but he was not yet ordained as a priest when he made his first transatlantic voyage.

Hispaniola and the Encomienda Years

In 1502, at approximately eighteen years of age, Bartolomé de las Casas sailed for Hispaniola with the fleet commanded by Nicolás de Ovando, the new governor appointed to replace Francisco de Bobadilla. The fleet carried some 2,500 colonists — the largest single contingent of Europeans yet to cross the Atlantic — and its arrival marked the beginning of a new phase in the colonization of the Caribbean, one focused less on exploration and initial plunder and more on the systematic exploitation of the island's indigenous Taíno population through forced labor.

The Taíno of Hispaniola, who had numbered perhaps several hundred thousand when Columbus first arrived in 1492, were already in rapid demographic collapse by the time Las Casas landed. Epidemic disease, brutal labor demands, famine caused by the disruption of traditional agriculture, and direct violence had killed them in staggering numbers. The encomienda system that Ovando was institutionalizing — under which Spanish settlers received grants of indigenous laborers who were theoretically being Christianized and protected but in practice were being worked to death in mines and fields — was the primary mechanism through which this destruction was being accelerated.

Las Casas received an encomienda allocation and participated in the economic life of the colony as an encomendero. He also participated, at least peripherally, in military expeditions against indigenous communities that resisted Spanish authority. His role in these early years was not that of an observer or a critic but of a participant in the colonial enterprise, indistinguishable in his behavior from the hundreds of other young Spaniards who had come to the Caribbean seeking fortune and advancement.

He was ordained as a priest in Hispaniola — he would later claim to have been the first person ordained in the New World, though this claim is disputed — and began conducting religious services for the Spanish colonists. But in these early years his priesthood sat lightly upon him; he performed his religious duties without apparent awareness that those duties might conflict with his participation in a system of forced labor that was destroying the very people he was nominally charged with converting and protecting.

The contradiction was pointed out to him in an incident that Las Casas later recounted with evident shame. When he sought confession from a Dominican friar before celebrating Mass at Pentecost in 1512 or 1513, the friar refused to absolve him because he held an encomienda — because, that is, he was participating in what the Dominicans had already condemned as a gravely sinful system. Las Casas was initially outraged by this refusal, convinced that the Dominicans were wrong and that his participation in the encomienda system was entirely consistent with his obligations as a Christian. It would be another year or two before he came to understand that they were right.

The Dominicans and the First Voices of Criticism

To understand Las Casas's conversion, it is necessary to understand the prior history of Dominican criticism of the encomienda system in Hispaniola. The Dominicans who arrived in the colony in 1510 had been shocked by what they found: a system of labor exploitation that was killing indigenous people at an extraordinary rate, maintained by settlers who showed no interest in the conversion or welfare of their laborers and who treated any religious criticism of the system as an intolerable interference with their economic interests.

The confrontation came to a head in a famous sermon preached by the Dominican friar Antonio de Montesinos on the fourth Sunday of Advent in 1511. Standing before the assembled colonists of Hispaniola — including the governor Diego Columbus, Christopher's son — Montesinos delivered a thundering denunciation of the encomienda system and its practitioners. He asked the congregation, on behalf of all the Dominicans on the island, by what right they held their indigenous laborers in such a condition of servitude; by what authority they conducted wars against people who had harmed them in nothing; by what right they left these people dying without proper religious instruction or sacraments. The sermon caused an uproar. The colonists demanded that the Dominicans recant their position. The Dominicans refused.

News of the controversy reached King Ferdinand in Spain, who summoned theologians and legal scholars to deliberate on the question. The result was the Laws of Burgos in 1512 — Spain's first formal legislation regarding the treatment of indigenous peoples in the colonies. These laws acknowledged the legitimacy of the encomienda system while imposing requirements for religious instruction and minimum standards of treatment that were largely unenforceable and mostly unenforced. They satisfied neither the colonists, who resented any interference, nor the Dominicans, who regarded them as an inadequate response to a fundamental injustice.

This controversy unfolded around Las Casas in the years before his own conversion. He was aware of Montesinos's sermon and its aftermath, aware of the Dominican position, and still unconvinced that it applied to him. His conversion, when it came, was therefore not the result of encountering new information — he had been living among the evidence of the system's destructiveness for years — but of a shift in his moral and religious vision that allowed him to see what had always been in front of him.

The Massacre of Caonao and the Awakening Conscience

In 1513, Las Casas participated in the conquest of Cuba under the command of Diego Velázquez, serving as a chaplain to the military expedition while also holding an encomienda allocation in the conquered territory. The Cuba expedition was a systematic military campaign aimed at subjugating the island's indigenous Taíno population — a campaign conducted with the same mixture of violence, terror, and forced labor that had already devastated Hispaniola.

The event that seems to have accelerated Las Casas's moral crisis came near the town of Caonao, where the Spanish force encountered a large group of indigenous people who had gathered peacefully with no hostile intent. Without provocation and without orders, Spanish soldiers began massacring the assembled crowd. Las Casas watched in horror as men, women, and children were cut down by Spanish swords. He attempted to intervene, appealing to the commander Pánfilo de Narváez to stop the killing, but Narváez sat on his horse and watched without acting. The killing went on until the Spaniards had exhausted themselves or their bloodlust.

Las Casas described this event in vivid and horrifying detail in his later writings, and it clearly occupied a central place in his memory as a moment of moral awakening. But his transformation was not instantaneous. He continued to serve as a chaplain with the Cuba expedition after Caonao, continued to hold his encomienda allocation, and continued to participate in the colonial system for another year or more after witnessing the massacre.

The decisive moment came in 1514 as Las Casas was preparing a sermon for Pentecost. He was reading the book of Ecclesiasticus, the Jewish wisdom text also known as the Book of Ben Sira, and came upon a passage that stated that the offering of one who kills a poor man is like a sacrifice of one slaughtered in the presence of his father — that is, an abomination. The text struck him with the force of revelation. Suddenly, the years of accumulated evidence, the Dominican arguments he had rejected, the memory of Caonao and of the thousands of deaths he had witnessed across Hispaniola and Cuba, coalesced into a single, inescapable moral verdict: the encomienda system was not merely inefficient or cruel in its practices; it was fundamentally sinful, and his participation in it made him complicit in that sin.

A few months later, on August 15, 1514, Las Casas preached a sermon in which he announced to his congregation that he was releasing his indigenous laborers and returning them to the governor. He denounced the encomienda system in its entirety, condemned the violence of the conquest, and declared his intention to dedicate his life to the defense of the peoples he had spent years helping to exploit. The response from his fellow colonists was hostile. Many regarded him as a troublemaker, a naive idealist who had no appreciation of the practical realities of colonial life. A few were moved by his example. The governor accepted the return of his laborers with bemused tolerance.

Las Casas was forty years old. He had half a century of advocacy ahead of him.

The Campaign for Reform: the First Years

The conversion of Las Casas transformed him not into a passive observer but into an intensely active political operator who understood that the defense of indigenous peoples required not merely moral condemnation of the colonial system but concrete political reform that changed the legal structures through which that system operated. He returned to Spain in 1515 with a detailed plan for reforming the colonial system — a plan that, while radical in its condemnation of the existing encomienda, was in some respects quite conservative in its assumptions about the necessity of Spanish colonial control.

His first significant ally was Cardinal Francisco Jiménez de Cisneros, the regent of Castile following the death of Ferdinand in January 1516. Cisneros was a reforming churchman who was genuinely troubled by reports of the destruction of indigenous peoples in the Caribbean, and he was willing to listen to Las Casas's proposals. The result was an unusual experiment: Las Casas was appointed, along with a team of Hieronymite friars, as one of a group charged with overseeing a new approach to governing the indigenous peoples of Hispaniola. The experiment was a failure. The Hieronymite friars who were sent to implement the reforms were not sympathetic to Las Casas's positions, the colonists resisted any diminution of their labor rights, and Las Casas himself found himself outmaneuvered by the very bureaucratic structures he was trying to reform.

A more ambitious proposal followed. Las Casas advocated for an experiment in peaceful colonization on the coast of Venezuela, in a region then called Cumaná, where he proposed to demonstrate that indigenous peoples could be converted to Christianity and incorporated into the colonial order through peaceful persuasion rather than military force. He received a grant of territory and began recruiting Spanish peasant settlers who would model a different kind of colonial relationship with the indigenous population. The experiment collapsed catastrophically. In 1520, a Spanish slave-raiding expedition attacked indigenous communities in the area, triggering a retaliatory attack in which Spanish settlers and several Dominican friars were killed. Las Casas returned to Hispaniola in disgrace, his practical proposal in ruins.

The Dominican Order and the Years of Reflection

The failure of the Cumaná experiment drove Las Casas into a period of intense self-examination and spiritual retreat. In 1522, he entered the Dominican Order, the same order whose criticism of the encomienda had first challenged his complacency a decade earlier. He spent the next decade in study, prayer, and the writing of his major historical work, the Historia de las Indias, which he began composing in the 1520s and continued to work on for decades.

His years in the Dominican Order gave him the institutional base and the theological grounding from which to mount a more systematic challenge to the colonial order. The Dominicans were the intellectual powerhouses of the Spanish church, the order of Thomas Aquinas, of the great scholastic tradition, and of the University of Salamanca where theologians were developing what would become known as the School of Salamanca — one of the first systematic attempts to work out a theory of natural law and human rights that applied universally to all peoples regardless of their religion or cultural background. Figures like Francisco de Vitoria at Salamanca were contemporaneously asking the same questions that Las Casas raised from his field experience: did indigenous peoples have natural rights that Europeans were bound to respect? Could war against them be justified? What were the conditions under which they could be incorporated into the colonial order without violation of their fundamental dignity?

These questions occupied Las Casas's mind through the 1520s and 1530s as he moved between Hispaniola, New Spain (Mexico), and Spain, gathering evidence, writing, organizing, and lobbying for reform. He was present in New Spain in the early 1530s and witnessed the early stages of the conquest of that territory — seeing firsthand the patterns of violence and exploitation that had characterized the Caribbean conquest being replicated on a larger scale on the mainland.

The Brief Account of the Destruction of the Indies

The work that made Las Casas famous across Europe and notorious among Spanish colonists was the Brevísima Relación de la Destrucción de las Indias — the Brief Account of the Destruction of the Indies — which he composed in 1542 and presented to Prince Philip (later Philip II) as a memorial intended to persuade the royal court to adopt dramatic reforms of the colonial system. The work was not published until 1552, but once published it spread across Europe with extraordinary speed.

The Brief Account is a catalogue of atrocities. Working region by region through the Caribbean and mainland Spanish territories, Las Casas described in precise and graphic detail the killings, enslavements, mutilations, and other horrors committed by Spanish conquistadors and settlers against indigenous peoples. His prose was controlled and clinical in its specificity, making it more disturbing rather than less: he described precise numbers of people killed, specific methods of torture and execution, the systematic destruction of food supplies to starve populations into submission, the feeding of indigenous people to Spanish hunting dogs.

The accuracy of specific claims in the Brief Account has been debated by historians for centuries. Some of the numbers Las Casas cited — particularly his estimates of indigenous population losses — are now considered exaggerated, though modern demographic research suggests that the actual death tolls were also catastrophic, if somewhat lower than his figures. Some historians have argued that his polemical purpose led him to select and arrange evidence in ways that distorted the overall picture. Others maintain that even his most controversial claims are substantially accurate.

What is beyond dispute is the work's historical impact. Translated into Dutch, French, English, German, and other languages within decades of its publication, the Brief Account became the foundational text of what is now called the Black Legend — the body of Protestant and anti-Spanish propaganda that portrayed Spanish colonialism as uniquely and exceptionally cruel. This appropriation of Las Casas's work for anti-Spanish purposes was deeply ironic, since Las Casas himself never argued that Spanish colonialism was worse than other forms of European expansion; he argued that colonialism as such was a moral catastrophe that required fundamental reform. But the Black Legend had its own logic and its own utility for the European powers competing with Spain for colonial territory, and it made Las Casas famous in ways that he had not intended.

The New Laws of 1542: Reform and Resistance

The work of Las Casas as a political lobbyist and moral advocate reached its legislative peak in 1542 with the promulgation of the New Laws of the Indies for the Good Treatment and Preservation of the Indians. These laws represented the most ambitious attempt by the Spanish Crown to reform the colonial system and limit the exploitation of indigenous labor in the first century of Spanish colonialism. They owed a great deal to Las Casas's persistent advocacy, though they were also the product of broader concerns about the consolidation of royal authority in the colonies and the fear that the encomendero class was becoming too powerful and independent.

The New Laws contained several provisions of genuine significance. They prohibited the enslavement of indigenous peoples under any circumstances, including as punishment for rebellion or apostasy. They prohibited the granting of new encomiendas and decreed that existing encomiendas would revert to the Crown upon the death of their current holders, rather than passing to heirs. They established that indigenous peoples who had been illegally enslaved were to be freed immediately. They placed restrictions on the use of indigenous labor in the pearl fisheries, which were particularly deadly. They required that royal officials investigate abuses and prosecute violators.

The response from the colonial establishment was ferocious. In Peru, the encomenderos under Gonzalo Pizarro mounted an armed rebellion against the viceroy Blasco Núñez Vela, who was attempting to implement the New Laws, and killed him in battle in 1546. In New Spain, the threat of rebellion was credible enough that the viceroy Antonio de Mendoza moved cautiously in implementing the provisions regarding encomienda succession. Across the colonies, encomenderos petitioned, lobbied, and threatened until the Crown backed down. By 1545, some of the most significant provisions — particularly those dealing with encomienda succession — had been suspended or repealed.

Las Casas understood the suspension of the New Laws as both a personal defeat and a revelation about the limits of reform achieved through the legislative process alone. The colonial establishment had demonstrated that it could resist reform even when that reform came from the highest authority in the Spanish world. The encomenderos were simply too powerful, too entrenched, and too numerous for the Crown to override without risking the stability of the entire colonial enterprise. The structural forces that maintained the colonial system were stronger than any law that the Crown could promulgate.

This recognition pushed Las Casas toward a more fundamental critique of the colonial system itself — not merely of its abuses but of its foundations. The argument he developed, and that he would advance most powerfully at the Valladolid debate, was not simply that the encomienda was badly managed but that the entire premise of the conquest was illegitimate: that Spain had no valid legal or moral title to the territories it had seized, and that the indigenous peoples of the Americas retained their sovereignty and their rights over their own lands and persons regardless of papal bulls or royal decrees.

The Bishop of Chiapas: Pastoral Failure and Moral Clarity

In 1543, Las Casas was appointed as the first Bishop of Chiapas, a remote diocese in southern New Spain that included territories populated by indigenous Maya peoples, many of whom had only recently been brought under Spanish colonial authority. The appointment was partly a recognition of his advocacy work and partly an attempt by the Crown to use his moral authority to ease the implementation of the New Laws in a particularly turbulent region.

His tenure as bishop was, by most measures, a failure as practical administration. He arrived in his diocese in 1545 to find that the Spanish colonists and encomenderos had no intention of accepting episcopal authority over their treatment of indigenous laborers. He attempted to enforce the New Laws by ordering confessors not to grant absolution to any person who held indigenous people in illegal servitude — a tactic that caused an uproar and that his successor bishops quickly reversed. The colonists complained bitterly to the Crown about his inflexibility. His relations with the civil authorities were hostile and unproductive.

He resigned the bishopric in 1550, after less than five years in the post, and returned to Spain — where, paradoxically, he was able to exercise more influence over colonial policy as an advocate and writer than he had been able to achieve as a bishop on the ground. His resignation was not a defeat so much as a strategic reorientation: understanding that the seat of power lay in Spain and not in the colonies, he returned to make his case where it could do the most good.

What his brief tenure in Chiapas did produce was one of his most important practical contributions to the defense of indigenous peoples: a confessional, or handbook for confessors, that he distributed to the priests of his diocese. This document instructed confessors to refuse absolution to any encomendero who had not first made full restitution for all wrongs done to indigenous people — meaning not just the release of illegally held laborers but the return of property wrongfully taken, payment for labor wrongfully extracted, and acknowledgment of all harm caused. This was an extraordinarily radical standard that went far beyond what the colonial establishment would accept, and it was quickly condemned by church authorities outside his diocese. But as a statement of principle, it was uncompromising and precise.

The Guatemala Experiment: the Land of True Peace

Alongside his lobbying and writing activities in the late 1530s and early 1540s, Las Casas made one more attempt at practical demonstration that peaceful conversion was possible without military conquest. Working with his Dominican colleagues, he negotiated an agreement with the colonial authorities in New Spain by which a region of Guatemala that the Spanish had been unable to conquer militarily — a highland region they called the Land of War — would be turned over to Dominican missionary work under conditions that excluded armed Spanish settlers.

The Dominicans spent several years composing songs and poems in indigenous languages that transmitted basic Christian teachings, training indigenous merchants who traveled into the interior and introduced the songs to the local population, and gradually building relationships of trust with communities that had successfully resisted every Spanish military expedition. By the late 1530s, Las Casas was able to report that the Dominicans had established peaceful relations with the indigenous population of the region and that conversions were proceeding without violence.

In 1537, the chief of the region came to the colonial capital and was baptized, along with a number of his followers. The region was renamed Verapaz — True Peace — in recognition of the method by which it had been brought into the colonial order. Las Casas cited the Verapaz experiment repeatedly in his later advocacy as proof that his thesis was correct: that indigenous peoples were rational, peaceful, and fully capable of accepting Christianity voluntarily when it was presented to them without violence and coercion.

The success of Verapaz was real but limited. The region was eventually integrated into the broader colonial administrative structure, and the conditions that had made the experiment possible — the exclusion of armed settlers and encomenderos — proved impossible to maintain indefinitely. Within decades, the indigenous peoples of Verapaz were experiencing the same pressures from the colonial system as those everywhere else. But as a demonstration of principle, Verapaz remained Las Casas's most successful practical achievement — proof that his approach was not merely theoretical but could work in practice under the right conditions.

The Valladolid Debate: the Most Important Argument of the Colonial Era

The Valladolid debate of 1550 to 1551 represents the high point of Las Casas's intellectual career and one of the most remarkable events in the history of European thinking about human rights. Called by Emperor Charles V to address the fundamental question of whether wars of conquest against indigenous peoples were just, the debate pitted Las Casas against Juan Ginés de Sepúlveda, the most distinguished Spanish humanist of his generation and the author of a learned treatise arguing that indigenous peoples were natural slaves in the Aristotelian sense and that the Spanish conquest was therefore morally justified and even beneficial to those it subjected.

Sepúlveda's argument drew on classical, theological, and empirical sources. Invoking Aristotle's theory that some people are by nature suited only for servitude and require direction by those more rational than themselves, Sepúlveda argued that indigenous peoples' demonstrated practices — including human sacrifice, idolatry, and what he characterized as their general irrationality and barbarity — proved them to be natural slaves. He argued further that war against them was justified on four grounds: as punishment for their crimes against natural law; to prevent the sacrifice of innocent victims; to open the way for the preaching of the Gospel; and as a benefit to the indigenous themselves, who would be liberated from tyranny and introduced to civilization and Christianity.

Las Casas's response was one of the most comprehensive and devastating refutations in the history of European debate. He argued that Sepúlveda had fundamentally misread Aristotle, whose doctrine of natural slavery was about individual human beings and could never be applied to entire peoples. He marshaled an enormous body of evidence, drawing on his decades of experience in the Americas and on a vast range of classical and theological authorities, to demonstrate that indigenous peoples were fully rational, politically sophisticated, and culturally accomplished — that they had complex legal systems, elaborate religious practices, impressive artistic and architectural achievements, and forms of governance that compared favorably with those of ancient Greece and Rome. He argued that the crimes Sepúlveda cited — human sacrifice and idolatry — were religious errors committed in good faith by people who had not yet received the Gospel, and that they could not justify military conquest any more than the religious errors of ancient Europeans had justified conquest of them.

Most fundamentally, Las Casas argued that the Gospel itself could not be spread by the sword. Faith had to be accepted freely to be genuine. Compelled conversion was theologically worthless and morally monstrous. The only legitimate method of evangelization was peaceful persuasion — the very method he had demonstrated at Verapaz. The conquest, on this analysis, was not merely unjust in its methods; it was self-defeating in its religious purposes, because it could not produce genuine Christian converts but only terrified and resentful people who mouthed Christian formulas under duress.

The panel of theologians who heard the debate reached no formal verdict, and the debate itself was not conclusive in the sense of producing a decisive policy change. Sepúlveda's treatise was never officially licensed for publication in Spain. Las Casas's arguments were not formally adopted as the basis of royal policy. Both sides claimed moral victory. But the debate had lasting consequences for European thinking about indigenous peoples, establishing the terms of a controversy that would echo through later centuries of colonial and post-colonial history.

Las Casas and the African Slave Trade: a Troubling Chapter

No honest account of Bartolomé de las Casas can avoid the most troubling episode in his career: his early advocacy, in the period between roughly 1516 and 1520, for the importation of African slaves to the Caribbean as a substitute for indigenous forced labor. During this period, Las Casas proposed that Spanish colonists should be permitted to import enslaved Africans to do the work then being performed — and destroying — indigenous laborers. His reasoning was pragmatic and, by his later standards, deeply callous: indigenous peoples, he then believed, were too fragile physically and spiritually to survive the labor demands of the colonial economy, while Africans were, he claimed, more robust and better suited to tropical labor.

Las Casas later repudiated this position with evident anguish, acknowledging in his Historia de las Indias that he had been wrong and that his proposal had contributed to the expansion of the Atlantic slave trade. He came to understand that the enslavement of Africans was as great a moral evil as the enslavement of indigenous Americans — that the arguments he made about the natural freedom and dignity of all human beings applied with equal force to Africans and to indigenous Americans. His late-life condemnation of African slavery was clear and unequivocal.

But the damage was done. His early advocacy had provided a morally respectable cover for a practice that would inflict incalculable suffering on millions of enslaved Africans and their descendants over the following three centuries. It is one of the most painful ironies of his career that the man who did more than anyone else in his century to challenge the moral foundations of indigenous American slavery was also, in his early years, a contributor to the expansion of African American slavery.

Historians have interpreted this episode in various ways. Some emphasize the context — that Las Casas shared the widespread early sixteenth-century assumption, common even among critics of indigenous slavery, that Africans were legitimately enslaved as captives of just war under the laws of the time. Others argue that this context, while important for understanding, does not excuse the failure of moral imagination that Las Casas himself later recognized and condemned. What all serious historians agree is that this episode must be acknowledged honestly as part of the full account of Las Casas's life and legacy — neither minimized in deference to his overall record as a defender of human rights nor used to dismiss the genuine importance of what he did and argued over the course of his long career.

His Final Decades: Writing, Advocacy, and Continued Struggle

Las Casas spent his final decades in Spain, operating from the Convent of San Gregorio in Valladolid, continuing to write, lobby, and advocate on behalf of indigenous peoples with an energy remarkable in a man of his advancing years. He completed his enormous Historia de las Indias and his Apologética Historia Sumaria, both left unpublished at his death but representing major contributions to knowledge about indigenous cultures and to the early history of the Spanish colonial enterprise. He continued to correspond with royal officials, to submit memorials to the Council of the Indies, and to advise anyone who would listen on the proper governance of Spain's American territories.

He was involved in one final controversy that illustrated both the consistency of his principles and the limits of his political influence. When news reached Spain of the Peruvian civil wars of the 1540s and the resistance to the New Laws, Las Casas produced his most radical political document: a treatise arguing that the indigenous lords of the Americas had never validly surrendered their sovereignty and that their lands and people could not legitimately be held by Spain without their consent. This was a position that, if adopted as policy, would have implied the dissolution of the entire colonial enterprise — and it was too radical even for the reforming tendency within the Spanish church and royal administration. It remained unpublished in his lifetime.

He died in Madrid in July 1566, at approximately eighty-two years of age. His death came quietly, in the city where he had spent so much of his long campaign for indigenous rights, surrounded by his Dominican brothers. He had not achieved the fundamental reform of the colonial system that he had devoted his life to pursuing. The encomienda system continued. Indigenous populations continued to decline. The labor exploitation he had condemned continued under various legal forms. By any practical measure, the colonial system he had opposed was more powerful at his death than when he had begun his campaign.

But the measure of his legacy cannot be taken by counting his practical victories, which were few, against his practical defeats, which were many. His importance lies elsewhere: in the arguments he made, the evidence he gathered, the questions he forced European civilization to confront, and the principles he articulated that would take centuries to bear their full fruit. He was the first person in European colonial history to argue, systematically and in public, that indigenous peoples had rights that colonial powers were bound to respect — that their sovereignty was real, their humanity was full, and the destruction of their cultures was a crime.

The Legacy of Bartolomé de las Casas in the History of International Law

The most lasting and consequential dimension of Las Casas's legacy is his contribution to the development of international law and the theory of human rights. This contribution was not made in isolation: it was part of a broader intellectual movement centered at the University of Salamanca in the sixteenth century, where theologians and jurists were working out, for the first time in European history, a systematic theory of natural law and rights that applied universally to all human beings regardless of their religion, culture, or political organization.

The leading figure of this movement was Francisco de Vitoria, whose lectures on the rights of the Indians, delivered at Salamanca in 1539, established foundational principles of what would later develop into international law. Vitoria argued that indigenous peoples had genuine sovereignty over their territories and could not be deprived of that sovereignty simply because they were not Christian. He challenged the validity of the papal donations by which Alexander VI had purported to grant the Americas to Spain, arguing that the pope had no temporal authority over non-Christian peoples and therefore could not validly assign their territories to European monarchs. He identified a limited set of grounds on which war against indigenous peoples might be just — primarily the defense of Spanish subjects in indigenous territories and the punishment of violations of natural law — while denying most of the grounds conventionally advanced to justify the conquest.

Las Casas's contribution was different from Vitoria's but complementary. Where Vitoria was primarily a theorist working from classical and theological sources, Las Casas was an empiricist as well as a theorist — a man who had spent decades in the Americas gathering evidence about indigenous cultures, capabilities, and political institutions. His arguments at Valladolid were grounded in an enormous body of specific knowledge that Sepúlveda, working from his library in Spain, could not match. Las Casas knew what he was talking about in a way that few European theorists of his time could claim.

The international law tradition that grew from the School of Salamanca eventually produced Hugo Grotius, Samuel Pufendorf, and Emer de Vattel — the major theorists of the law of nations in the seventeenth and eighteenth centuries. Their work established principles of state sovereignty, the laws of war, and the rights of peoples that became foundational for modern international law. Las Casas's influence on this tradition was indirect but genuine: the questions he raised, the evidence he marshaled, and the principles he articulated helped to create the intellectual climate in which the Salamanca theorists worked and helped to ensure that the treatment of indigenous peoples remained a question of active moral and legal debate rather than a settled matter of European self-interest.

The connection between Las Casas's arguments and later human rights thought is both real and complex. The Universal Declaration of Human Rights, adopted in 1948, rests on assumptions about the universality of human dignity that Las Casas would have recognized and endorsed. The principle that all human beings possess fundamental rights by virtue of their humanity alone, regardless of their cultural, religious, or political status, is precisely what Las Casas was arguing against Sepúlveda at Valladolid. He was working within a theological framework very different from the secular human rights discourse of the twentieth and twenty-first centuries, but the underlying moral intuition — that there is a universal human dignity that no political authority can legitimately override — connects his work to the modern human rights tradition in ways that are more than merely rhetorical.

The Black Legend and Its Consequences

The use of Las Casas's Brief Account by Protestant propagandists in the sixteenth and seventeenth centuries to attack Spain created what historians call the Black Legend — the narrative of Spanish colonial rule as uniquely and comprehensively brutal, contrasted with an implicit or explicit claim that northern European colonialism was more humane and enlightened. This appropriation of Las Casas's work for anti-Spanish propaganda had consequences that Las Casas himself neither intended nor would have endorsed.

The Black Legend served the commercial and geopolitical interests of Protestant England and the Dutch Republic in their competition with Catholic Spain for colonial territory and trade. By portraying the Spanish as incomparably savage colonizers, English and Dutch propagandists could cast their own colonial projects as liberating rather than exploitative — as rescuing indigenous peoples from Spanish tyranny rather than subjecting them to a different but equally brutal form of domination. The reality was that English colonialism in North America and Dutch colonialism in the Caribbean and East Indies were no less destructive for indigenous peoples than Spanish colonialism; they were simply organized around different economic models and justified by different ideologies.

The Black Legend thus served to obscure the systemic nature of European colonialism and to focus attention on the particular characteristics of Spanish rule. Las Casas's work was selectively weaponized: his evidence of Spanish atrocities was highlighted and reproduced, while his broader argument — that colonialism as such was a moral catastrophe, and that all colonial powers had an obligation to respect the sovereignty and rights of indigenous peoples — was ignored. The man who had argued that no European power had a legitimate right to conquer and colonize indigenous peoples became, in the Black Legend tradition, simply a witness to Spanish wickedness.

This distortion of Las Casas's legacy has taken centuries to correct, and the correction is still incomplete. Modern scholarship has done much to restore the full complexity of his arguments and to place them in proper context, acknowledging both their genuine importance for human rights thought and their limitations and contradictions. But the image of Las Casas as primarily a producer of anti-Spanish atrocity propaganda — an image reinforced by every new edition of the Brief Account published with this frame — remains influential in popular consciousness.

Las Casas's Writings: a Rich and Complex Body of Work

The Brief Account, for all its historical importance and notoriety, is only the most famous of a large body of writings that Las Casas produced over his long career. His complete works, if assembled, would constitute one of the most substantial individual contributions to the literature of colonial Latin America in the sixteenth century.

The Historia de las Indias, his major historical work, is a vast chronicle of the European encounter with the Americas from Columbus's first voyage through the early decades of the sixteenth century. Written over a period of decades and completed by the 1560s, it was left unpublished at Las Casas's death and not printed until the nineteenth century, when it became an invaluable primary source for historians. The Historia is neither objective nor dispassionate — Las Casas never pretended to those virtues — but it is based on an extraordinary range of first-hand knowledge, personal observation, and documentation that makes it essential for understanding the early history of the Caribbean and the beginnings of Spanish colonialism on the mainland.

The Apologética Historia Sumaria is an even more ambitious work — an encyclopedic account of indigenous cultures across the Americas intended to demonstrate that indigenous peoples met every criterion that classical and Christian thought had established for fully rational, civilized humanity. Las Casas worked through Aristotle's criteria for civilized life — the possession of marriage, family life, agriculture, cities, crafts, religion, and government — and systematically demonstrated that indigenous American peoples satisfied every one of them. The work was also left unpublished at his death and remained in manuscript until the twentieth century, but it represents one of the first systematic attempts by a European writer to present indigenous cultures on their own terms and as genuine civilizations rather than curiosities or aberrations.

His legal and theological treatises — including his De Regia Potestate and various memorials to the Council of the Indies — worked out the legal and philosophical implications of his arguments in more technical terms, engaging with the sophisticated jurisprudence and theology of his time. These works are less accessible to the modern reader but were crucial to his influence within the Spanish intellectual and political establishment, demonstrating that his positions were not merely the emotional reactions of a man horrified by what he had witnessed but carefully reasoned arguments grounded in the best learning of his age.

The Indigenous Peoples in las Casas's Thought: Strengths and Limitations

Las Casas's advocacy on behalf of indigenous peoples was comprehensive and sincere, but it was also shaped by the assumptions and limitations of his time and place. His primary argument for indigenous rights rested on the claim that indigenous peoples were fully rational — that they had all the intellectual and moral capacities that European philosophy associated with genuine humanity. This was a powerful argument against Sepúlveda's natural slavery thesis, but it rested on a framework that measured indigenous humanity by its correspondence to European standards of rationality and civilization.

Las Casas never questioned the ultimate goal of the colonial enterprise as he conceived it: the conversion of indigenous peoples to Christianity and their incorporation into a Christian civilization. His argument was about method, not about the legitimacy of the mission itself. He believed that indigenous peoples had the right to maintain their sovereignty and their cultural practices until they voluntarily accepted Christianity through peaceful persuasion, but he did not question whether they should ultimately become Christian. In this respect, his vision was genuinely paternalistic even as it was genuinely protective.

His descriptions of indigenous cultures, while far more respectful and detailed than those of most of his contemporaries, were also selective and sometimes idealized. He was drawn to evidence that supported his thesis of indigenous rationality and civilization, and he sometimes downplayed or rationalized practices that conflicted with his framework. His treatment of human sacrifice in particular was nuanced — he acknowledged it as an error but argued that it reflected a sincere, if misdirected, religious devotion — but it was not without its difficulties.

These limitations do not invalidate his contribution but they do contextualize it. He was not an anthropologist in any modern sense, and he was not arguing for cultural relativism or indigenous sovereignty in the terms that those concepts would be understood today. He was arguing, within the framework of sixteenth-century Spanish Catholic thought, for the most expansive possible recognition of indigenous humanity and rights. That this framework had its own constraints and blind spots is unsurprising; the remarkable thing is how far he pushed beyond those constraints.

The Enduring Significance of Bartolomé de las Casas

The five hundredth anniversary of Las Casas's conversion — if we date it to 1514 — has come and gone without the kind of global commemoration that such an event might seem to warrant. This relative neglect reflects something about the uncomfortable position he occupies in the historical memory of the Americas. He is too critical of colonialism to be entirely comfortable for those who celebrate the colonial heritage; too embedded in the colonial enterprise himself — as a priest, as an advocate for Christian conversion, as a former encomiendero — to serve as an uncomplicated hero for anti-colonial movements. His position in history is genuinely difficult and genuinely important, and it resists the simplifications that historical commemoration usually demands.

What can be said with confidence is that the questions he raised have not yet been fully answered, and in some respects they have not even been fully acknowledged. The dispossession of indigenous peoples that he documented and condemned continued long after his death, through centuries of colonial and post-colonial history, producing patterns of inequality and marginalization that persist in the Americas today. The argument he made at Valladolid — that indigenous peoples had rights of sovereignty and self-determination that no colonial power could legitimately override — is an argument that indigenous peoples and their advocates are still making in the twenty-first century, in international forums, in national courts, and in the streets.

Las Casas did not win his argument in his lifetime. The colonial system he condemned continued and expanded after his death, reaching its full destructive potential in the centuries that followed. But he formulated the argument with a clarity and force that made it impossible to ignore, and he did so at the very beginning of the colonial era, before the systems he opposed had fully consolidated. He showed that the critical consciousness necessary to challenge colonialism from within European civilization existed from the very earliest moments of colonial expansion — that the moral resources for a different relationship with the peoples of the Americas were available even to those who were themselves participants in the colonial enterprise, if they were willing to use them.

That willingness — to see what was in front of him, to acknowledge his own complicity, to change course at great personal cost — is perhaps the most important thing about Bartolomé de las Casas. It was not inevitable that a man of his background and initial commitments would become what he became. Many of his contemporaries faced the same evidence and drew different conclusions, or drew no conclusions at all. He chose differently, and in choosing differently he helped to create the possibility that human beings could reckon seriously with the costs of their civilization's expansion — a reckoning that remains unfinished.