Without wanting to resurrect this thread, it's been unfortunately repeated again at the BBC:
Model agents told her she'd never make it, hairdressers refused to touch her hair and Kodak didn't even make film that could cope with her skin tone, but somehow 40 years ago Beverly Johnson became the first black woman on the cover of American Vogue.
Opening paragraph, no less.
(although looking at that photo, I think whatever film they used worked perfectly with her skin tone, although I've not seen her in person to verify its accuracy)