When Diana Vreeland took over from Eleanor Lambert, she transformed the Met Gala from a simple fundraising dinner into a permanent fixture on the fashion world's social calendar. She also revolutionized how museums were perceived by bringing theatre to the fore. The 1993 Gala paid tribute to the pioneer who started her career as the fashion editor for Harper's Bazaar. After working with the magazine for 25 years, Diana became the Editor-in-Chief of Vogue in 1962. In 1971, she served as a special consultant to the Costume Institute at the Metropolitan Museum of Art in New York. It was under her guidance that the Met Gala was transformed into a…