Codified Racism: Papal Bull "Dum Diversas" 1452
Dum Diversas (Latin for "While different") is a papal bull issued by Pope Nicholas V on June 18, 1452. This document granted King Afonso V of Portugal sweeping authority to "invade, search out, capture, vanquish, and subdue" Saracens (Muslims), pagans, and any other "unbelievers and enemies of Christ" wherever they were found. It explicitly authorized the Portuguese to reduce these non-Christians to perpetual slavery, seize their kingdoms, lands, possessions, and goods, and convert them to the king's (and his successors') use and profit. This bull provided religious and moral justification for Portugal's early expansion along the African coast, laying groundwork for the transatlantic slave trade and European colonization.
Often paired with the follow-up bull Romanus Pontifex (1455) and later Inter Caetera (1493), Dum Diversas formed part of the so-called Doctrine of Discovery — a set of papal decrees that sanctioned the seizure of non-Christian lands and the enslavement of Indigenous and African peoples. These documents framed non-Europeans as "enemies of Christ" whose subjugation served the spread of Christianity, effectively giving Catholic powers a divine mandate for conquest, forced conversion, and chattel slavery. Historians see it as a key legal-theological foundation for centuries of racialized violence, land theft, and the transatlantic slave trade that devastated millions of lives.
The bull's legacy is still debated today. In 2023, the Vatican formally repudiated the Doctrine of Discovery, stating these 15th-century decrees "did not adequately reflect the equal dignity and rights of indigenous peoples" and were never expressions of Catholic faith — though critics note no formal rescission occurred. For many, Dum Diversas remains a stark example of how religious authority was weaponized to justify colonialism, slavery, and white supremacy. A chilling reminder of how power dressed in piety shaped the modern world. 📜⚔️
