So called Christians were not the first to come up with the idea of born again virgins in the 20th century AD in reality Orthodox Jews taught that virginity regerates prior to that

This is what

Rabbi Dr. Daiches

said

If they had sexual intercourse before they were three years and one day old the hymen would grow again, and they would be virgins. V. 9a and 11b and cf. Nid. 44b and 45a.

— Rabbi Dr. Daiches

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