Not that it's germane to gender-balance of 'greyhairs', but COBOL was invented by a woman, Grace Hopper, after all. I'm not sure I can think of a new mainstream

Not that it's germane to gender-balance of 'greyhairs', but COBOL was invented by a woman, Grace Hopper, after all. I'm not sure I can think of a new mainstream language initially authored by a female these days.