The phrase Apostolic Age is derived from ἀπόστολος, G693, (Ezra 7:14; Dan 5:24). Meaning: that period of Early Church history during the life and work of the original apostles, which extended from the day of Pentecost (c. A.D. 33; Acts 2, to the death of John, c. A.D. 100). The main sources for the period are the Book of Acts and the NT letters.