(2nd Century Greek Bishop Who Developed Christian Theology and Defined Catholic and Orthodox doctrines of the Apostolic Churches)
Born In: İzmir, Turkey
Irenaeus was a famous Greek apologist against the Gnostic movements of early Christianity, and the bishop of the Roman city of Lugdunum in the province of Gaul, presently Lyon, France. The foremost Christian theologian of the 2nd century, he is best known for his work ‘Adversus Haereses’ (Against Heresies), written circa 180 AD. Almost all of his writings were denunciations of theological rivals that challenged the emerging Christian orthodoxy, in concordance with the Church of Rome. He is credited with one of the earliest lists of the biblical canon that includes all the four gospels, which is now part of the New Testament. He was also among the first to use the principle of apostolic succession to refute heretics and theological opponents - which professes that bishops are the direct and uninterrupted line of succession from the Apostles of Jesus Christ, and that their exclusive authority and special powers were handed down to them from the apostles themselves. Irenaeus is arguably the most important link between the apostolic church and later Christianity, as well as the obvious connection between eastern and western orthodoxies owing to his place of origin and his seminal work to strengthen the Catholic church.