and an important legacy of the ancient Church, proclaiming the principle of freedom of religion as an inalienable human right and demanding a fair trial for Christians before they are condemned to death. Tertullian was the first to disprove charges that Christians sacrificed infants at the celebration of the Lord's Supper and committed incest. He pointed to the commission of such crimes in the pagan world and then proved by the testimony of Pliny the Younger that Christians pledged themselves not to commit murder, adultery, or other crimes. He adduced the inhumanity of pagan customs such as feeding the flesh of gladiators to beasts. He argued that the gods have no existence and thus there is no pagan religion against which Christians may offend. Christians do not engage in the foolish worship of the emperors, that they do better: they pray for them, and that Christians can afford to be put to torture and to death, and the more they are cast down the more they grow; "the blood of the Christians is seed" (Apologeticum, 50). In the De Praescriptione he develops as its fundamental idea that, in a dispute between the Church and a separating party, the whole burden of proof lies with the latter, as the Church, in possession of the unbroken tradition, is by its very existence a guarantee of its truth. The five books against Marcion, written in 207 or 208, are the most comprehensive and elaborate of his polemical works, invaluable for gauging the early Christian view of Gnosticism. Tertullian has been identified by Jo Ann McNamara as the person who originally invested the consecrated virgin as the “bride of Christ”, which helped to bring the independent virgin under patriarchal rule. Manuscripts The earliest manuscript (handwritten copy) of any of Tertullian's works dates to the eighth century, but most are of the fifteenth. There are five main collections of Tertullian's works, known as the Cluniacense, Corbeiense, Trecense, Agobardinum and Ottobonianus. Some of Tertullian's works are lost. All the manuscripts of the Corbeiense collection are also now lost, although the collection survives in early printed editions. Theology Specific teachings Tertullian's main doctrinal teachings are as follows: God Tertullian reserves the appellation God, in the sense of the ultimate originator of all things, to the Father, who made the world out of nothing through his Son, the Word, has corporeity though he is a spirit (De praescriptione,