What was the popes position on slavery Europeon exploration?

During the European exploration era, popes issued various bulls that both sanctioned and criticized aspects of slavery. For instance, Pope Nicholas V's 1452 bull "Dum Diversas" granted Portugal the right to enslave non-Christian peoples, reflecting an endorsement of colonial practices. However, later popes, such as Paul III in the 16th century, condemned the enslavement of indigenous peoples, emphasizing their humanity and the need for evangelization rather than exploitation. Overall, the papal stance on slavery was complex and evolved over time, balancing the interests of Christian expansion with moral considerations.