Analysis of information sources in references of the Wikipedia article "Christianity in the 1st century" in English language version.
The New Testament contains twenty-seven books, written in Greek, by fifteen or sixteen different authors, who were addressing other Christian individuals or communities between the years 50 and 120 (see box 1.4). As we will see, it is difficult to know whether any of these books was written by Jesus' own disciples.
Contact with Grecian life, especially at the games of the arena [which involved nudity], made this distinction obnoxious to the Hellenists, or antinationalists; and the consequence was their attempt to appear like the Greeks by epispasm ("making themselves foreskins"; I Macc. i. 15; Josephus, "Ant." xii. 5, § 1; Assumptio Mosis, viii.; I Cor. vii. 18; Tosef., Shab. xv. 9; Yeb. 72a, b; Yer. Peah i. 16b; Yeb. viii. 9a). All the more did the law-observing Jews defy the edict of Antiochus Epiphanes prohibiting circumcision (I Macc. i. 48, 60; ii. 46); and the Jewish women showed their loyalty to the Law, even at the risk of their lives, by themselves circumcising their sons.
Around the year 200, at Carthage, North Africa, Tertullian wrote a tract entitled, "The Veiling of Virgins." Tertullian makes the argument that the passage applies to all females of age—not just to married women. … Earlier in his tract, Tertullian testified that the churches that were founded by the apostles did insist that both their married women and their virgins be veiled: Throughout Greece, and certain of its barbaric provinces, the majority of churches keep their virgins covered. In fact, this practice is followed in certain places beneath this African sky. So let no one ascribe this custom merely to the Gentile customs of the Greeks and barbarians. Moreover, I will put forth as models those churches that were founded by either apostles or apostolic men. … The Corinthians themselves understood him to speak in this manner. For to this very day the Corinthians veil their virgins. What the apostles taught, the disciples of the apostles confirmed. [Tertullian, The Veiling of Virgins The Ante-Nicene Fathers Vol. 4 pp. 27–29,33] … In summary, the early Christians practiced exactly what 1 Cor. 11 says: Men prayed with their heads uncovered. Women prayed with their heads veiled. Nobody disputed this—regardless of where they lived—Europe, Mid-East, North Africa, or the Far East. This written evidence of the course of performance of the early Christians is corroborated by the archaeological record. The pictures we have from the second and third centuries from the catacombs and other places depict Christian women praying with a cloth veil on their heads. Some of those pictures are shown below. So the historical record is crystal clear. It reveals that the early generation of believers understood the head covering to be a cloth veil—not long hair. As Tertullian indicated, even the women who did not wish to follow Paul's teaching were not claiming that Paul was talking about long hair. Rather, they simply wore a small cloth in minimal obedience to his teaching. Nobody in the early Church claimed that Paul's instructions were merely a concession to Greek culture. Nobody claimed that they had anything to do with prostitutes or pagan priestesses.
