Quintus Septimius Florens Tertullian (c. 160- c. 220) was born in Carthage, North Africa. He studied law as a young man. In about 195 he converted to Christianity and spent the rest of his life utilizing his skills as a rhetorician to defend the faith against pagan philosophies and heresies.
Irenaeus (c. 2nd century) was born somewhere in western Asia Minor, probably Smyrna. He studied religion and philosophy under Polycarp, the bishop of Smyrna.