New York Fashion Week has served many purposes throughout its long history, but it has always remained at the center of the American fashion world. During World War II, Fashion Week challenged the dominance of French couture; in the 1970s and 1980s, it was a showcase for American sportswear stars who became household names; in the 2000s, it was the stage for celebrity designers using the runway as a vehicle for entertainment; and now, it is the place...