"In Roddenberry's 23rd-century universe, mankind had conquered conflict and catapulted into space as a unified species – men, women, Chinese, Russians, Africans. And it seemed to work. Women weren't intergalactic secretaries, they were full officers. Communications officer Uhura, a woman and black, is fourth in command of the Enterprise."
January 1, 1970
https://en.wikiquote.org/wiki/Star_Trek%3A_The_Original_Series