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Christianity in Pompeii

In Pompeii, like its nearest neighboring town, Herculaneum, there was a Christian community until the fatal eruption of 79 AD. This could happen quite early. So in one of the books of the New Testament, namely in the book of Acts, the visit of the Apostle Paul to the small town of Puteoli on the road to Rome is mentioned.

Acts 28
13 From there we set sail and arrived at Rhegium. The following day we reached Puteoli.
14 I spent a week with them. And so we came to Rome.

The town of Puteoli is located on the north coast of the Gulf of Naples, to the west of modern Naples. It is possible that Christianity in this region originated precisely from this city. Although of course it could come here and from Rome a little later than the journey of the Apostle Paul.

Historical and Religious Context

Christianity originated in the 30s CE in Judea following the crucifixion of Jesus (c. 30–33 CE) and spread rapidly through the Roman Empire via trade routes, travelers, and missionaries like Paul. By the 60s CE, there was a documented Christian community in nearby Puteoli (modern Pozzuoli, about 19 miles/30 km away), as referenced in Acts 28:13–14 when Paul stopped there en route to Rome. Pompeii, a bustling port and resort town with a population of 10,000–20,000, had strong commercial ties to Puteoli and Rome. It was a cosmopolitan place with temples to Roman gods (e.g., Jupiter, Venus, Apollo), Egyptian cults (Isis), and household shrines (lararia). Paganism dominated public and private life, with rituals involving sacrifices, festivals, and apotropaic (evil-warding) symbols.
Key events affecting potential Christian spread:

Nero’s persecution of Christians in Rome (64 CE), which Tacitus describes as targeting a “hated” group accused of “abominations.”
The 62–63 CE earthquake that severely damaged Pompeii, possibly creating openness to new faiths amid disaster (similar to the rise of Isis worship).
A relatively calmer period for Christians from ~68–79 CE under Vespasian and Titus, before the eruption.

Early Christians met in homes or workshops for meals, prayer, and teaching—no dedicated churches existed yet, and the cross was not a widespread public symbol (it became prominent later, in the 3rd–4th centuries). Symbols like the fish (ichthys) or chi-rho were more common where they appeared. Christians were often viewed pejoratively as a superstitious Jewish sect.

Examples

One compelling piece of evidence for a Christian community living in Pompeii before the catastrophic eruption of Mount Vesuvius in 79 AD was discovered in 1962. Archaeologists found ancient graffiti scrawled in charcoal on the exterior wall of a building now commonly called the “Hotel of the Christians” (or Christian Inn). While it remains uncertain whether the structure actually functioned as a lodging owned or operated by Christians, the inscription itself is clearly anti-Christian in tone and points to the existence of believers in the city.

The charcoal graffiti reads roughly:
“Strange ideas have captured the mind of A——, who is now a prisoner of the Christians.”

The writer (likely a family member, friend, or neighbor) appears shocked and dismayed by the conversion of this person whose name began with “A.” The message carries a clear intent to shame and warn the convert, reflecting the social tension and stigma attached to Christianity at the time. Although Emperor Nero’s brutal persecutions had ended by the late 60s AD, Christianity was still an illegal and socially suspect religion under Roman law. Openly professing it could result in loss of social status, property, freedom, or even life.
Some scholars have proposed an alternative context: the building stands directly across from a well-known brothel (lupanar). They suggest that “A” may have been a frequent client of the establishment. After converting to Christianity, he presumably stopped visiting, causing financial harm to the brothel owners. The graffiti would then be an angry complaint from those whose business suffered. However, this remains speculative. Sadly, much of the charcoal inscription has since faded or been washed away by the elements and time.

House of Paquius Proculus

Another intriguing hint of hidden Christian presence comes from the grand House of Paquius Proculus (also known as the House of the Baker), a large residence with an attached bakery in Pompeii. Paquius Proculus was a prominent local figure—possibly a magistrate or successful businessman—yet his home and workplace contain several unusual features that some historians interpret as signs of covert Christian faith.
In the bakery area, pagan religious symbols and decorations were deliberately damaged or removed. Phallic emblems (common protective symbols in Roman culture) were carefully plastered over, and other pagan motifs appear to have been torn down. In their place, a mysterious symbol resembling a Christian cross was found. Additionally, during excavations of the private living quarters, archaeologists discovered a famous Sator Square (or Sator Rotas square) scratched into a door jamb.
The Sator Square is a five-word Latin palindrome that can be read forward, backward, up, or down:

Possible translations/meanings of the words:
SATOR – sower, planter, creator, founder (often with divine connotations)
AREPO – likely a proper name or invented word; some suggest Egyptian or Aramaic roots
TENET – holds, possesses, masters, preserves
OPERA – works, deeds, effort, care
ROTAS – wheels (from rota)

When the letters are rearranged, they form a cross-shaped pattern with the words PATER NOSTER (“Our Father”) running both vertically and horizontally, along with the Greek letters A and Ω (Alpha and Omega) — powerful early Christian symbols representing Christ as the beginning and the end. This interpretation, while debated, is widely accepted by many scholars as a discreet Christian cryptogram used by believers to signal their faith without openly provoking authorities.
The presence of such a sophisticated Christian symbol in a wealthy Pompeian home suggests that at least some residents practiced their faith privately while outwardly maintaining Roman social norms.

By the way, in the neighboring Herculaneum, there were also found possible traces of the presence of Christians in the Roman region of Campania in antiquity.

Similar traces of early Christianity have been identified in the neighboring town of Herculaneum, also buried by Vesuvius. Together, these finds from the Bay of Naples region provide valuable insight into the spread of Christianity in Roman Italy during the first century AD—decades before it became more widely documented.
These artifacts remain subjects of scholarly discussion, but they collectively paint a picture of a small yet resilient Christian community quietly existing amid the vibrant, pagan-dominated cities of Pompeii and Herculaneum right up until the fateful day in 79 AD.

House of the Bicentary (Casa del Bicentenario)

The House of the Bicentennial (Casa del Bicentenario) in Herculaneum is one of the most fascinating and historically significant discoveries from the ancient Roman world. It was unearthed in 1938—exactly 200 years after systematic excavations of the buried city began following the catastrophic eruption of Mount Vesuvius in 79 AD. Many scholars consider it possibly the earliest known Christian prayer house or private chapel anywhere in the Roman Empire.
In a small, secluded room of the house, archaeologists found a striking feature: a cruciform (cross-shaped) depression carved into the wall, complete with visible nail holes where a wooden cross had once been securely fastened. On either side of this niche, traces of metal hinges or buttonholes remain, indicating that wooden shutters were installed to completely cover the cross. This setup suggests the symbol of Christian faith was deliberately hidden from casual view and revealed only during private prayer or worship. The room itself was tucked away like a discreet closet, positioned so that outsiders and casual visitors would have had no access to it—emphasizing the need for secrecy in a potentially hostile environment.
This cautious approach is understandable given the religious climate of the Roman Empire. While Romans were generally tolerant of foreign gods and cults—allowing worship of deities like Mithras, Isis, or Osiris—the empire demanded public recognition of the supremacy of the traditional Roman pantheon, especially Jupiter and the state gods. Household religion was particularly important: when visiting a Roman home, social etiquette required guests to present small gifts not only to the host, his wife, and children, but also to the genius (protective spirit or deity) of the household. Failing to honor the genius was seen not merely as rudeness, but as a dangerous affront that could invite divine wrath upon the entire family. Similar expectations applied across the empire. Any religion that refused to acknowledge the Roman gods was viewed with suspicion, as it risked angering those gods and undermining the pax deorum—the peace between gods and Rome that was believed essential for the empire’s prosperity and military success.
Judaism received limited accommodations due to its ancient status and ethnic character. Jews were generally permitted to practice their faith, but social interaction was discouraged; forming close friendships with Jews was often seen as risky, potentially offending one’s own patron deities. This cultural wariness contributed to the deep roots of European anti-Semitism, which long predates Christianity. However, because Judaism remained largely confined to its own ethnic and cultural boundaries and did not actively seek Roman converts, it posed less of a perceived threat to the social and religious order.
Christianity, by contrast, was treated far more harshly. As a new faith without strict ethnic limits, it appealed to a broad cross-section of Roman society—including citizens, slaves, and the elite—drawing people away from traditional worship. Its missionary zeal and emphasis on exclusive devotion to one God directly challenged the Roman religious framework. As a result, Roman authorities responded with intense persecution: Christians were scapegoated, tortured, burned alive, thrown to wild beasts in amphitheaters, and executed in increasingly creative ways. Despite these brutal efforts to stamp it out, the faith continued to spread underground until it eventually transformed the empire itself.
The House of the Bicentennial offers a rare, intimate glimpse into the hidden lives of early Christians—ordinary people quietly practicing their beliefs in the shadow of Vesuvius, long before Christianity became the dominant religion of the West.

Scholarly Debate and Consensus

The topic is polarized:
Optimistic views (e.g., Longenecker, some 19th–20th-century Italian excavators like Matteo Della Corte): A small but recognizable Christian presence existed, using crosses devotionally and engaging in teaching. The eruption may even have been interpreted by some as divine judgment (echoed in later Jewish/Christian texts like Sibylline Oracles Book 4, likening it to Sodom).
Skeptical/mainstream views (e.g., Mary Beard, Robyn Faith Walsh, Wayment/Grey): The evidence is too ambiguous or non-specific. Graffiti shows awareness (possibly negative), but crosses are mundane. No definitive proof of organized activity. “Absence of evidence is not evidence of absence,” but the archaeological record currently points to no clear Christian community.

Most experts conclude any Christian presence was tiny, individual or household-based, and low-profile—travelers, merchants, or slaves influenced by Puteoli/Rome networks—rather than a visible group. Pompeii remained overwhelmingly pagan.