At the moment we are in the middle of an effort, by conservatives, to erase trans people from existence. Part of that effort, as with the Nazi book-burnings, is to erase any understanding of trans people, and part of that effort is pretending that they are some sort of new phenomenon. The are not. Gender has always been more complex than bigots are comfortable with, just like most other things about the world. Tristan from Step Back History does a good job of covering what we know about the history of the many examples through history of people who don’t conform to the artificial gender “binary”, from all over the world. It’s a fascinating part of who we are as a species that has been deliberately kept from most people, at least in the English-speaking world. The fascists don’t want you to know this stuff, so what are you waiting for?