The old collections preserve a small anecdote about a woman named Justina, daughter of Asverus, who was said to have been married at six years old and to have borne a child at seven.
The rabbis quote the report only to dispute it. The sages remark, quietly and firmly, that one cannot have a child before the age of eleven. A seven-year-old has not yet reached the physical maturity required for such a thing. Whatever story had circulated about Justina — whether legend or mistake — the rabbis refused to let it stand unchallenged.
The brief passage may seem like a footnote, but its logic is important. The rabbis were not shy about saying: this claim is impossible. They did not accept a tradition simply because it was old, nor a wonder simply because it was dramatic. They weighed reports against what their own experience told them could happen in a human body.
The passage became a small precedent in rabbinic thought. When later generations debated cases of young brides and unusual stories of early childbirth, they returned to this line: the sages say no one can have a child before eleven. Let the law and the storytellers both remember.
Judaism, even in its most fantastical moods, keeps one foot in the ordinary facts of human life.