The Apology That Took Centuries
In a landmark move that reshapes the moral contours of the modern papacy, Pope Leo XIV issued on May 16, 2006 a historic, unflinching apology for the Holy See’s direct role in legitimising slavery, calling the Vatican’s centuries long failure to condemn the practice a “wound in Christian memory” [1]. Delivered in the pope’s first encyclical, Magnifica Humanitas (“Magnificent Humanity”), the apology marks the first time a pontiff has explicitly acknowledged, and asked forgiveness for, the past Vatican’s complicity in giving European sovereigns explicit authority to subjugate and enslave “infidels” [2].
Shannen Dee Williams, historian at the University of Dayton and author of the 2022 landmark study Subversive Habits: Black Catholic Nuns in the Long African American Freedom Struggle [3], welcomed the apology. “The Catholic Church has never been an innocent bystander in the history of slavery,” Williams said in a statement that has since echoed across Catholic and secular media [2]. “Black Catholics have waited a long time to hear the Vatican speak honestly about the church’s leading roles in the trans Atlantic slave trade and chattel slavery, and thus, by extension, the enduring systems of anti Black racism in the world today” [2].
The pope’s own biography adds a poignant layer to the announcement. The first U.S. born pontiff, whose own family tree includes both enslaved people and slave owners [1], chose to include the apology not as a secondary footnote but as a central element of his first major teaching document.
The Long Hidden Record of Papal Complicity
Magnifica Humanitas is a sweeping, encyclical whose primary focus is the ethical governance of artificial intelligence. Yet within its pages, Pope Leo XIV confronts a darker chapter of Catholic history that the Vatican had long acknowledged only in vague, collective terms. What had never been done was to admit that the papacy itself, through a series of 15th century papal bulls, granted European monarchs the religious and legal authority to conquer, enslave and dispossess non Christian peoples [2].
The encyclical specifically cites the 1452 bull Dum Diversas, issued by Pope Nicholas V, which gave the Portuguese king the right “to invade, conquer, fight and subjugate … Saracens and pagans and other infidels … and to reduce their persons to perpetual slavery” [1]. Subsequent popes, including Callixtus III, Sixtus IV and Leo X, confirmed or renewed those permissions [4]. In his encyclical, Pope Leo XIV acknowledged this history directly: “As early as the early modern period, the Apostolic See of Rome, at the behest of European sovereigns, repeatedly intervened to regulate and legitimize forms of subjugation, including, in certain cases, the enslavement of ‘infidels’” [1].
“It is impossible not to feel deep sorrow when contemplating the immense suffering and humiliation endured by so many,” Leo XIV wrote [1]. “For this, in the name of the Church, I sincerely ask for pardon.”
Criticism Over Timing
Even as the apology was praised, questions immediately arose about its timing. Critics noted that Pope Leo XIV had just completed an 11 day, four nation tour of Africa, his first visit to the continent as pontiff. In several public addresses during that trip, he spoke forcefully against neo colonialism and the exploitation of Africa’s resources, but he did not deliver the slavery apology on African soil.
“Timing is important,” said one senior Vatican observer who spoke on condition of anonymity. “The pope spoke powerfully in Africa, but the apology for the Vatican’s own role in slavery would have carried even greater weight if it had been uttered from Ghana, which was a major hub of the trans Atlantic slave trade.”
Ghana, which had pushed for a UN resolution declaring the enslavement of Africans “the gravest crime against humanity,” nevertheless welcomed the apology as an “act of moral courage … important in the global pursuit of truth, human dignity and justice” [5].
The encyclical’s call for repentance is not grounded in mere political correctness but in a long biblical tradition of acknowledging collective sin. The Old Testament repeatedly instructs communities to confess past transgressions and seek forgiveness, as in Psalm 51: “For I know my transgressions, and my sin is ever before me … Wash me thoroughly from my iniquity” (Psalm 51:3 4).
By framing the apology as an act of Christian obedience, Pope Leo XIV implicitly recalls the teaching of Jesus in the Gospel of Luke: “If he sins against you seven times a day, and turns to you seven times and says, ‘I repent,’ you must forgive him” (Luke 17:4).
Williams and other historians have long documented the brutal conditions of chattel slavery, pointing out that enslaved Africans were systematically stripped of names, language, religion and dignity in ways that far exceeded the treatment of captive animals.
“The trans Atlantic slave trade treated human beings as cargo, not persons,” Williams noted in a recent interview. “The Catholic Church not only tolerated this system; in some cases, it provided the legal and theological justification for it” [3].
While the apology is historic, some critics argue it stops short of concrete action. They call for the Vatican to open its archives fully, to fund educational programmes, and to support reparative initiatives for the descendants of the enslaved.
Nevertheless, Pope Leo XIV has done what none of his predecessors dared: he has looked directly at the Vatican’s own past and, in the name of the Church, said “Forgive us.”
“Black Catholics have prayed and worked to witness this moment,” Williams said [2]. Whether the apology will be followed by structural change remains to be seen, but one thing is now certain: the “wound in Christian memory” has been named, and the healing has, at last, begun.
References
[1] Leo XIV. (2026). Magnifica Humanitas [Magnificent Humanity] (encyclical). Vatican Publishing House. Available at: https://www.vatican.va/content/leo-xiv/en/encyclicals/documents/20260515-magnifica-humanitas.html
[2] AP News. (2026, May 25). Pope makes historic apology for Vatican’s role in legitimizing slavery. Available at: https://apnews.com/article/pope-apologizes-slavery-role-holy-see-vatican-78df993c5604eb098b19f255b89b3155
[3] Williams, S. D. (2022). Subversive Habits: Black Catholic Nuns in the Long African American Freedom Struggle. Duke University Press. Available at: https://doi.org/10.1515/9781478022817
[4] Kellerman, C. J. (2019). All Oppression Shall Cease: A History of Slavery, Abolitionism, and the Catholic Church. Orbis Books.
[5] Government of Ghana – Ministry of Foreign Affairs. (2026, April 1). Available at: https://mfa.gov.gh/index.php/minister-for-foreign-affairs-holds-press-conference-on-the-adoption-of-un-resolution-on-the-declaration-of-the-trafficking-of-enslaved-africans-and-racialised-chattel-enslavement-of-africans-as-the-gr/
The papal bulls Dum Diversas and Romanus Pontifex have frequently been cited by race baiters as proof that the Vatican and the Catholic Church approved of slavery. But as I explained in an August 11, 2022 article here at CS, “Apologizing for Slavery and Other Misdeeds of our Forebears,” these documents do not support this notion. It’s too bad Pope Leo’s knowledge of history, and especially Church history, is lacking. His apology was not necessary. It will only encourage the race baiters to throw more darts at the Catholic Church.