his head downwards," attributing this information to the much earlier theologian Origen, who died AD. St. Peter's martyrdom is traditionally depicted in religious iconography as crucifixion with his head pointed downward. Peter's place and manner of death are also mentioned by Tertullian () in Scorpiace, where the death is said to take place during the Christian persecutions by Nero. Tacitus (56–117) describes the persecution of Christians in his Annals, though he does not specifically mention Peter. "They were torn by dogs and perished, or were nailed to crosses, or were doomed to the flames and burnt." Furthermore, Tertullian says these events took place in the imperial gardens near the Circus of Nero. No other area would have been available for public persecutions after the Great Fire of Rome destroyed the Circus Maximus and most of the rest of the city in the year 64 AD. Tracing the original tombs Dionysius of Corinth mentions the burial place of Peter as Rome when he wrote to the Church of Rome in the time of the Pope Soter (died 174), thanking the Romans for their financial help. "You have thus by such an admonition bound together the planting of Peter and of Paul at Rome and Corinth. For both of them planted and likewise taught us in our Corinth. And they taught together in like manner in Italy, and suffered martyrdom at the same time." Catholic tradition holds that the bereaved Christians followed their usual custom in burying him as near as possible to the scene of his suffering. According to Catholic lore, he was laid in ground that belonged to Christian proprietors, by the side of a well-known road leading out of the city, the Via Cornelia (site of a known pagan and Christian cemetery) on the hill called Vaticanus. The actual tomb was an underground vault, approached from the road by a descending staircase, and the body reposed in a sarcophagus of stone in the center of this vault. The Book of Popes mentions that Pope Anacletus built a "sepulchral monument" over the underground tomb of Saint Peter shortly after his death. This was a small chamber or oratory over the tomb, where three or four persons could kneel and pray over the grave. The pagan Roman Emperor, Julian the Apostate, mentions in 363 A.D. in his work Three Books Against the Galileans that the tomb of Saint Peter was a