Shortly after Irenaeus had established a definition for orthodoxy, “scriptural and apostolic,” Tertullian rose to prominence. An adult convert to Christianity, he was the son of a Roman centurion in the Carthage vicinity who had some wealth, making Tertullian a scion of privilege. As a boy he was well-educated and trained to be a lawyer. His education level is seen in the fact that he wrote both in Latin (the chief language of the region), as well as in Greek (his three Greek works haven’t survived, they’re attested only in citations and quotations elsewhere). His early training as a lawyer would affect the rest of his life deeply.