Yves Saint Laurent presents his highly anticipated debut collection as Dior's new head designer, introducing the Trapeze line that will become one of the most important dress silhouettes throughout the 1960s. From Spring 1958 until Fall 1960, Saint Laurent will design six collections for Dior. Lucien Lelong, for whom Christian Dior and Pierre Balmain created in the 1940s before opening their own couture salons, passes away. Karl Lagerfeld joins Jean Patou as head dsigner until 1963.