@SnoopJ I would be interested too! I remember a short television documentary (Dutch TV or Netflix) showing efforts to get the trans flag and white wine emojis accepted. I think there were a few sentences about the history that got me interested, but I didn't go look for more.
@SnoopJ https://avdt.vpro.nl/browse?layout=episode_timeline&layoutParam=theme&filter=%7B%22tags%22%3A%5B%22recGlcUNVMVrmDkdA%22%5D%7D&episode=recJQWTbAsMW8lReg&mode=simple is the tv programme that I was thinking of. It's in Dutch, but interviews are in English.