to study New Testament apocrypha seriously in the 19th century and produce new translations. The texts of the Nag Hammadi library are often considered separately but the current edition of Schneemelcher also contains eleven Nag Hammadi texts. Books that are known objectively not to have existed in antiquity are usually not considered part of the New Testament apocrypha. Among these are the Libellus de Nativitate Sanctae Mariae (also called the "Nativity of Mary") and the Latin Infancy gospel. The latter two did not exist in antiquity, and they seem to be based on the earlier Infancy gospels. Gospels Canonical gospels Four gospels came to be accepted as part of the New Testament canon. Gospel according to Matthew Gospel according to Mark Gospel according to Luke Gospel according to John Infancy gospels The rarity of information about the childhood of Jesus in the canonical gospels led to a hunger of early Christians for more detail about the early life of Jesus. This was supplied by a number of 2nd-century and later texts, known as infancy gospels, none of which were accepted into the biblical canon, but some scholars have noted that the very number of surviving infancy manuscripts attests to their continued popularity. Most of these were based on the earliest infancy gospels, namely the Infancy Gospel of James (also called the "Protoevangelium of James") and Infancy Gospel of Thomas, and on their later combination into the Gospel of Pseudo-Matthew (also called the "Infancy Gospel of Matthew" or "Birth of Mary and Infancy of the Saviour"). The other significant early infancy gospels are the Syriac Infancy Gospel, the History of Joseph the Carpenter, Life of John the Baptist. Jewish-Christian gospels The Jewish–Christian Gospels were gospels of a Jewish Christian character quoted by Clement of Alexandria, Origen, Eusebius, Epiphanius, Jerome and probably Didymus the Blind. Most modern scholars have concluded that there was one gospel in Aramaic/Hebrew and at least two in Greek, although a minority argue that there were only two, Aramaic/Hebrew and Greek. None of these gospels survives today, but attempts have been made to reconstruct them from references in the Church Fathers. The reconstructed texts of the gospels are usually categorized under New Testament Apocrypha. The standard edition of Schneemelcher describes the texts of three Jewish–Christian gospels as follows: 1) The Gospel of the Ebionites ("GE") – 7 quotations by Epiphanius. 2) The Gospel of the Hebrews ("GH") –