I had to do some research to answer a question of the ProtoEvangelium of St. James the other day. I found this to be interesting, it kind of relates here.
"Another part of this is important, because when it is read with the Mishnah of the Jews it teaches/brings understanding of the
"mishnaic teachings on the process by which girls become women and how they are passed from fathers to husbands provide intriguing parallels. Moreover, the concern in each of the texts is for the preservation and assurance of virginity. The implication for this cultural connection is that the assertion of Mary's postpartum virginity (the real innovation of the Protoevangelium of James) may have come from within a Jewish community (albeit a Christian one)."
Horner, Timothy J.
Jewish Aspects of the Protoevangelium of James
Journal of Early Christian Studies - Volume 12, Number 3, Fall 2004, pp. 313-335
"Mishnah," the derivative of the verb "shanah," means therefore: (1) "instruction," the teaching and learning of the tradition, the word being used in this sense in Ab. iii. 7, 8; and (2) in a concrete sense, the content of that instruction, the traditional doctrine as it was developed down to the beginning of the third century of the common era. "Mishnah" is frequently used, therefore, to designate the law which was transmitted orally, in contrast to "Miḳra," the law which is written and read...
http://www.jewishencyclopedia.com/view.jsp?artid=660&letter=M