The document discusses how Chanel changed the fashion industry in the 1920s. Some of Chanel's revolutionary ideas that gained her popularity included refashioning an old jersey and introducing more comfortable, practical clothing. She began designing hats in 1908 which led to her initial success. During the 1920s, Chanel helped transform haute couture fashion by pioneering new concepts, just as artistic movements were experimenting with new styles and techniques in other art forms during that period.