History rightly remembers Abraham Lincoln and his struggle to abolish slavery in the United States. Yet that same history often leaves in the shadows those who stood on the opposite side of that struggle and the ideas they used to defend slavery. To truly understand the American Civil War—the bloodiest conflict in American political history, one that claimed hundreds of thousands of lives—we must also examine the thinkers, politicians, and religious arguments that sought to legitimize slavery. For this war was ultimately a great civilizational and ideological conflict between the belief that all human beings are created equal and the claim that some people are, by their very nature, inferior to others.
One of the most influential figures on that ideological front was John C. Calhoun, the Senator from South Carolina and Vice President of the United States. Calhoun rejected the earlier view that slavery was merely a “necessary evil” and instead described it as a “positive good.” In his view, slavery was part of the natural social order ordained by both God and nature. In doing so, he transformed slavery from a temporary and unavoidable institution into one that deserved moral and religious defense.
The man who carried Calhoun’s argument even further was Jefferson Davis, the Senator from Mississippi who would later become the first—and only—President of the Confederate States of America. Davis maintained that the inequality between Black and White people was not simply historical or economic but part of the divine order established at creation. To him, slavery was not a human invention but a reflection of the natural hierarchy God had ordained for humanity.
These ideas, however, did not emerge overnight. They were constructed gradually over nearly four centuries through mutually reinforcing religious interpretations, pseudoscientific theories, and political propaganda.
The Economic Origins of Racism
The first link in this ideological chain appeared in the fifteenth century with the rise of the Atlantic slave trade. Through expeditions financed by Prince Henry of Portugal, Africans captured in West Africa began to be sold in European markets. Until then, Europe’s primary source of slaves had been the Slavic peoples of Eastern Europe. Indeed, the English word slave is derived directly from the word Slav.
Africans, however, came to be regarded as economically more valuable. Because of their physical appearance, they were far less able to blend into European societies and therefore much less likely to escape. For perhaps the first time on such a systematic scale, human life itself became a commercial calculation.
How Africans Were Stripped of Their Humanity
It was at this point that the Portuguese chronicler Gomes Eanes de Zurara entered the story. In his account of Prince Henry’s activities along the African coast, Zurara portrayed Africans as people “devoid of reason,” “living like animals,” and “ignorant of civilization.” As a result, the slave trade came to be presented not merely as the kidnapping and sale of human beings but as a supposedly noble mission to civilize and Christianize “savages.”
Modern biological racism had not yet emerged. Nevertheless, the idea that Africans were not fully human had already become a written ideology.
Reinterpreting Scripture: The Curse of Ham
Economic interests alone were not enough. Slavery also required religious legitimacy.
Attention therefore turned to the biblical account of Noah and his sons in the Book of Genesis. In Genesis chapter 9, Noah curses his grandson Canaan, whom he believes has dishonored him. The text neither curses Ham himself nor makes any reference to skin color.
Yet for centuries, certain clergymen and pro-slavery writers reinterpreted this passage to argue that Ham’s descendants were Black Africans and that they had been divinely condemned to perpetual servitude.
The biblical text, however, contains no such connection. The curse is directed at Canaan, not Ham, and there is not a single reference to Africans or to skin color anywhere in the passage.
When Scripture Was No Longer Enough, a New History Was Invented
By the nineteenth century, even these interpretations were no longer sufficient. The Bible clearly teaches that all human beings descend from Adam and Eve. If all people belonged to the same human family, defending the idea of innate racial superiority became increasingly difficult.
In response, some writers developed what became known as the Pre-Adamite Theory—the belief that there had been human beings before Adam. According to this theory, God had created other human populations long before Adam, and Black people supposedly descended from this earlier, inferior race. In this way, without openly contradicting the biblical narrative, they effectively inserted an invisible history into it.
Jefferson Davis and the Myth of the Land of Nod
Jefferson Davis and other Confederate leaders represented the final stage of this long ideological tradition. Davis’s claim that Cain encountered dark-skinned people created before Adam in the Land of Nod was, in essence, the Pre-Adamite theory translated into the language of political propaganda.
Supporters of this claim pointed to the following passage from the Book of Genesis:
“So Cain went out from the Lord’s presence and lived in the land of Nod, east of Eden. Cain made love to his wife, and she became pregnant and gave birth to Enoch.” (Genesis 4:16–17)
For centuries, these verses have prompted two recurring questions: Who was Cain’s wife? Who lived in the Land of Nod?
Mainstream Jewish and Christian tradition offers a straightforward answer. Later chapters of Genesis explain that Adam and Eve had many sons and daughters besides Cain and Abel. Cain’s wife was therefore most likely one of his sisters or a close relative. Scripture simply does not consider this detail important enough to explain.
Pro-slavery writers, however, seized upon this silence. They argued that the Land of Nod was not inhabited by Adam’s descendants but by primitive beings created before Adam—creatures supposedly existing somewhere between humans and animals. According to this interpretation, Cain encountered these people during his exile, married among them, and the Black race descended from that union.
Yet neither Genesis itself nor the mainstream traditions of Jewish and Christian interpretation contain any suggestion that the Land of Nod was inhabited by pre-Adamic humans. This idea did not arise from Scripture but from an ideological need to justify slavery.
Dehumanization: The First Step Toward Genocide
What we see here is not merely the intellectual foundation of American slavery but a recurring mechanism underlying many of history’s greatest atrocities. Before a people can be enslaved, expelled, or exterminated, they must first be stripped of their full humanity. Contemporary social psychology and genocide studies refer to this process as dehumanization.
Zurara’s portrayal of Africans as “creatures living like animals,” the reinterpretation of the Curse of Ham to claim that certain peoples had been divinely condemned to perpetual servitude, the Pre-Adamite theory’s exclusion of Black people from Adam’s lineage, and Jefferson Davis’s incorporation of these ideas into mainstream politics were simply successive stages of the same mindset. At every stage, the objective remained the same: to make the humanity of the targeted group appear questionable.
The same logic has appeared repeatedly throughout history. It can be seen in the caste system of India, where certain communities were considered inherently inferior by birth; in colonial ideology, which portrayed Indigenous peoples as “savages” in need of civilization; in Nazi Germany, where Jews and Roma were described as “vermin” and “parasites”; and in contemporary genocidal campaigns, where targeted populations are systematically stripped of their humanity. The contexts differ, but the psychological and ideological mechanism remains remarkably consistent.
In today’s Turkey, girls as young as fourteen and fifteen have been prosecuted on terrorism charges simply for studying together and ordering meals together.
The rhetoric directed at the Hizmet Movement in recent years deserves attention in this regard. Official reports issued by state institutions, as well as the writings and public statements of certain theologians, have frequently described the movement using terms such as “deviant,” “traitorous,” “virus,” “cancer cell,” or “a structure that must be eradicated.” Such language has made harsh measures against the group more acceptable in the eyes of the public. This is precisely why dehumanizing rhetoric serves as one of the earliest warning signs of impending human rights violations.
The methods may change, but the logic remains the same. The easiest way to deprive people of their rights is first to persuade society that they are not fully human.
We often imagine that slavery began with chains. In reality, the chains came last. The first link in the chain was convincing society that certain people were no longer “one of us.” Dehumanization is the common starting point of slavery, ethnic cleansing, and genocide alike. History changes. The actors change. Sacred texts, political ideologies, and justifications change. But the mechanism remains the same. Once one society ceases to regard another as fully human, what follows differs only in form—not in essence.
