Anna Wintour attended her first Met Gala in 1987. Steve Eichner/Penske Media via Getty Images/ANGELA WEISS/AFP via Getty Images Anna Wintour, the former Vogue editor in chief, has been a staple of the Met Gala since the 1980s. Wintour has been chair of the gala since 1995, deciding who gets invited to fashion's biggest night. Wintour's Met Gala fashion has changed since she first attended. It's hard to picture the Met Gala without Anna Wintour. Vogue's former editor in chief has been synony...