And the date is significant.
From Aleteia:
The first encyclical of Pope Leo XIV is expected to be signed next week, on May 15, Germany’s KNA news agency has reported, citing “various Vatican sources.” The date places the new Pope in direct continuity with a tradition of social encyclicals that helped define the Church’s engagement with the modern world.
The precedent begins with Pope Leo XIII and his 1891 encyclical Rerum Novarum, released May 15 that year. That document marked the Church’s first systematic response to the upheavals of the industrial revolution, addressing labor rights, private property, and the moral responsibilities of both workers and employers. From it emerged what is now known as Catholic social teaching (or Catholic social doctrine).
The handful of social encyclicals that have been released in the decades since 1891 have often been released on anniversaries of Leo XIII’s encyclical. This year, of course, is the 135th anniversary.
Leo XIV indicated from the beginning that his pontificate was inspired by Pope Leo XIII and that he would continue to address the great changes coming to our world, especially through AI, so it seemed that an encyclical on a May 15 was somehow pre-ordained….
…Reports — and his own comments — suggest that Leo XIV’s encyclical, provisionally titled Magnifica humanitas (Magnificent humanity), will take up questions that are no less consequential today. Artificial intelligence, in particular, raises pressing concerns about human agency, work, and responsibility. The fragility of international law and ongoing conflicts add further urgency.
What distinguishes this moment is not only the subject matter, but the deliberate invocation of history. If he indeed chooses a May 15 release date, Leo XIV signals that the Church’s social teaching is not static. It develops in response to new realities while remaining anchored in enduring principles: the dignity of every person, the priority of the common good, and the moral limits of power.
