The most powerful word in fashion? Chanel. Coco Chanel modernised female fashion, liberating women from the heavy, traditional style of dress in the late the 19th and early 20th century. Post 1920, skirt lengths got shorter, trousers for women were popularised and the Little Black Dress was invented, making Chanel the most popular couturier of the era. Her vision was revolutionary, and changed the fashion landscape forever.