I look forward to your evidence, Noir, that definition 1a comes from the same period as 2c, which is the first example offered of any differing actual
usage of the terms. I'm raising this, Noir, as something to query .. because in 2c, there's mention of, I quote:
I look forward to your evidence that drivers licences were ever a consideration, back in the 14th century .....
You see the problem ? NO, repeat, NO, evidence has been offered showing that differing applications of 'sex' v 'gender' were ever employed before recent times. You need, in order to prove your point, to show that differences in concepts between the two terms are anything other than recent invention.
2/10 (given for effort, not any result !). Must try harder, my son !