That’s an interesting question and I wasn’t sure, but I was curious enough to go look it up.
According to this source, which I can’t verify the credibility of but which seems in line with what other sources say on the topic:
No official commission or group decides what each generation is called and when it starts and ends. Instead, different names and birth year cutoffs are proposed, and through a somewhat haphazard process a consensus slowly develops in the media and popular parlance.
So I am Gen X born 1980. And who decided this?
That’s an interesting question and I wasn’t sure, but I was curious enough to go look it up.
According to this source, which I can’t verify the credibility of but which seems in line with what other sources say on the topic:
TL;DR “It’s all made up and none of it matters!”