Who here is Jewish?

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Seth, I'm not entirely sure what you're referencing, as my knowledge of the Torah is pretty much limited to it's history from Judaic perspective. I can tell you that the Torah was handed down and copied by hand, and once it became standardized there was no deviation allowed. It's still copied with brush and ink to this day. That tradition continued even once Jews became a Diaspora - so it wasn't a case of Nationalism so much as a belief . No more books could be added. While some sects had adopted various addendums of varied authenticity, they were denominational/regional. The Jews of Yemen are a good example, with some unique beliefs, and unique texts, but they're a rare case of a segregated tribe who have continued their own traditions by again, copying them to the letter. There are many instances of Jews living under certain rulership where they adopted some variations in the Torah, but that's not the same as a group like the Yemenite Jews that were true to themselves. Plus Aramaic/Hebrew to Greek is a sloppy process from what I understand.