Supermodel Naomi Campbell claims her modelling career has made a major contribution to modern society, insisting her beauty has broken racial barriers. The catwalk queen's proudest moment was becoming the first black model to appear on the cover of prestigious publications including Time Magazine and the British and French editions of Vogue. She says, "September of 1991, I was on the cover of Time Magazine, which was incredible. "I was the very first black model to appear on the cover and was also the first for British and French Vogue. "I remember first looking at the Time cover and just feeling overwhelmed with emotion. A door had been opened and I was the one to do it. "As a model, breaking down barriers is so important to me, something I have always fought for."