[Campion]

I did read on where it said that the original Hebrew and Greek also say “He” but the Latin Vulgate said “She” and that the RCC decided to stick with that.

No. The Greek text is not "original," it's as much a translation as the Latin of the Vulgate is. The pronoun in Hebrew is ambiguous.

And in fact the 1999 revision of the Vulgate changes the "she" to masculine/neuter, as my link points out.

[Bryanw92]

OK. Thanks.

The bible sure would be easier to understand if they had just written it in English from the beginning!</sarc>

[Former Fetus]

The pronoun in Hebrew is ambiguous

I don't know Hebrew, so I looked up an English translation of the Tanakh. This is what it says: "And I will put enmity between thee and the woman, and between thy seed and her seed; they shall bruise thy head, and thou shalt bruise their heel"

They? That didn't help much, except to support that it is not Mary who crushes the serpent.