Lucy-Anne Holmes is calling for an end to topless page three models. Photograph: Graeme Robertson The women who gathered in London on Saturday to mark the centenary of a mass rally staged by 50,000 suffragettes in Hyde Park posed a clear question: how far have British women come since that summer's day in 1913? In answer it is possible to point to Margaret Thatcher, or Dame Stella Rimington, the first woman to run a security service, or Karren Brady, vice-chairman of West Ham football club, and to conclude that the sky is the limit. We can indeed point beyond the sky, to astronaut Helen Sharman ; not just the first British woman in space but the first Briton in space. Sharman's case might seem to prove that female role models are not always household names and are frequently people driven purely by personal ambition, rather than by crusading zeal. Yet in a century of feminist campaigning it is those women who have publicly challenged gender stereotypes that have ma...