Historic St Catharine's, founded in 1473, has always insisted on male students wearing a jacket and tie and smart trousers while women had to wear a blouse and skirt or dress. But after a campaign by Charlie Northrop, 25, who began transitioning from male to female last year, college officials have agreed to rewrite the rules. The college now becomes the first at the 800 year-old university to change the formal dress code. Now male students can go for dinner in a dress and women can wear suits and students who don't define themselves as male or female can chose either. It is hoped the change will make transgender and non-binary students feel more comfortable.