In 1970, Annie Nightingale became Radio 1’s first female DJ. The appointment was made somewhat grudgingly - DJs, believe it or not (and we’re talking about the likes of Ed “Stewpot” Stewart and Tony Blackburn here), were perceived to be “husband substitutes” and it was generally accepted that a female voice would alienate the listeners. And yet 40 years later, Nightingale is the only DJ left from the original line-up.