In an apostolic letter dated December 11, 2025, Pope Leo XIV has placed Christian archaeology at the core of the Church’s intellectual and pastoral mission. Issued for the centenary of the Pontifical Institute of Christian Archaeology, the text is less a commemorative document than a programmatic statement: Memory, the Pope argues, is essential for hope — especially in a fractured world marked by war, technological acceleration, and cultural amnesia.
Founded in 1925 during the “Jubilee of Peace” proclaimed after World War I, the Institute was created to study the material traces of early Christianity with scientific rigor. The timing matters. As Pope Leo notes, the centenary coincides with another Jubilee year, once again unfolding amid global conflict. Archaeology, he suggests, offers the Church a way to speak credibly to a wounded humanity by grounding faith in history rather than abstraction.
“Christianity was not born from an idea,” the Pope writes, but through “a womb, a body, and a tomb.”
This insistence on physicality runs throughout the letter. Archaeology is presented not as an elite academic specialty, but as a discipline that helps believers — and skeptics — grasp how faith takes shape in places, gestures, and communities. Stones, inscriptions, burial sites, and basilicas all testify that the Gospel entered real cities and real lives.
The Pope traces the Institute’s legacy from its founding by Pius XI through its international impact today. Over the past century, it has trained scholars from every continent, supported excavations from Rome to the wider Mediterranean, and fostered cooperation even during moments of political instability, such as its decision to hold an international congress in Split during the Balkan wars. Archaeology, the letter suggests, can serve peace because it safeguards shared memory.
Going deeper
Yet the document is not nostalgic. Pope Leo explicitly situates archaeology within contemporary debates, from artificial intelligence to sustainability. Archaeologists, he notes, are trained not to discard but to preserve; not to consume but to contemplate. In a culture shaped by speed and disposability, this patient attention to detail becomes a form of cultural and even spiritual ecology.
Theologically, the Pope anchors archaeology in the mystery of the Incarnation. Revelation unfolds in history, and theology risks becoming disembodied if it ignores material evidence. Citing Veritatis Gaudium, he reiterates that archaeology belongs among the core disciplines of priestly and theological formation, alongside church history and patrology. To study early Christian homes, tombs, and liturgies is to encounter not relics, but people — their fears, hopes, and prayers.
Memory, Pope Leo argues, has always been central to evangelization. From the catacombs to the shrines of the martyrs, the Church has preserved places as witnesses — not “museums.” These sites still speak, especially to younger generations seeking authenticity rather than ideology.
The letter closes with a clear call to action. Bishops, educators, and cultural leaders are urged to encourage young people — lay and ordained — to study archaeology, not only as an academic pursuit but as a service to the Church and society. Christian archaeology, Pope Leo concludes, gives voice to forgotten lives and makes visible the “Word of life” inscribed in history.
