The only modern part of things are the hormone medicines and surgeries we have now. And the language and terms we use. But people being trans, intersex, both sexes, neither, etc, etc is as old as humanity as far as we can tell. There are ancient examples of things like I think it was a grave of a person born female, but was buried with armor and honors of an exclusively male role, like a warrior something. Like a “Mulan” type thing. Which means either nobody knew they were born female or it didn’t matter.
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