During the Nerva-Antonine dynasty (96–192 AD), anti-Christian persecution operated through local, reactive legal proceedings rather than empire-wide extermination campaigns. The legal blueprint for the second century was established around 112 AD in an exchange of letters between Pliny the Younger, governor of Bithynia-Pontus, and Emperor Trajan. Pliny sought guidance on handling the "stubbornness" of Christians who refused to perform sacrifices to Roman deities or curse Christ. Trajan’s rescript laid down crucial rules: Roman officials were instructed not to seek out Christians actively, and anonymous accusations were explicitly banned. However, if individuals were publicly denounced, brought to trial, and persisted in confessing their faith, execution remained mandatory unless they recanted by offering incense to imperial statues.
Emperor Hadrian (r. 117–138 AD) reinforced Trajan’s legal safeguards in a rescript to Minucius Fundanus, governor of Asia, decreeing that Christians could only be prosecuted for actual illegal behavior in formal court proceedings rather than being condemned due to popular mob outrage or slander. This policy of procedural caution largely continued under Antoninus Pius (r. 138–161 AD), who sought to prevent localized riots from boiling over into civil instability. Nevertheless, because execution remained the legal penalty for maintaining the "Christian name," high-profile martyrdoms still erupted. Around 155 AD, during the reign of Antoninus Pius, Saint Polycarp—the aged Bishop of Smyrna and direct disciple of the Apostle John—was arrested after local crowds demanded his death. Refusing to curse Christ with his famous declaration, "Eighty and six years have I served Him, and He never did me any wrong," Polycarp was burned at the stake and pierced with a dagger.
Under the co-emperorship of Marcus Aurelius (r. 161–180 AD) and Lucius Verus (r. 161–169 AD), life for Christians grew significantly harsher. Though Marcus Aurelius was a celebrated Stoic philosopher, he held little sympathy for Christian belief, viewing their willingness to die as foolish theatrical fanaticism rather than reasoned Stoic fortitude. His reign was beset by devastating plague, famine, and Germanic invasions along the Danube, prompting widespread public panic. Communities blamed these disasters on the Christians' refusal to worship traditional gods, accusing them of disrupting the pax deorum (peace of the gods). Rather than suppressing anti-Christian hysteria, imperial authorities permitted local magistrates to launch intense interrogations, resulting in horrific public spectacles.
The anti-Christian climate under Marcus Aurelius culminated in 177 AD with the severe persecution of the Christian community in Lugdunum (modern Lyons, France). Local authorities banned Christians from public spaces—such as forums, markets, and baths—before rounding them up for brutal public tortures inside the Roman amphitheatre. Pagans subjected the Christians to severe physical abuse, claiming they engaged in cannibalism and incest. Among those executed was Saint Blandina, a young slave woman whose remarkable endurance under horrific torture—including being suspended on a cross, scorched on a red-hot iron seat, and gored by wild bulls—inspired even her executioners. A total of 48 Christians were executed or died in cramped prisons, their ashes thrown into the Rhône River to deny them burial.
Following the death of Marcus Aurelius, the reign of his son Commodus (r. 180–192 AD) and the brief rule of Pertinax (193 AD) brought a period of relative peace to the Church. Commodus was largely indifferent to Christian affairs, influenced in part by his favorite concubine, Marcia, who was a Christian sympathizer. This respite allowed early Christian scholars, known as the Apologists, to defend their faith using Greek and Latin literary traditions. Writing toward the close of the century, Latin theologian Tertullian composed his landmark work, Apologeticus, addressed directly to Roman magistrates. Tertullian debunked popular pagan rumors regarding incest and infanticide, argued for religious freedom as a natural right, and issued a prophetic warning to the Roman state regarding the futility of persecution: "The blood of the martyrs is the seed of the Church."