The most consequential thing that has ever happened to American fashion was a scheduling decision. Twenty-eight years later, the schedule is the least interesting thing about it.

In the fall of 1998, Helmut Lang moved his spring show to New York six weeks early, ahead of London, Milan, and Paris. Calvin Klein followed within days, Donna Karan after him—three designers tired of showing last, and tired of shaking off unfounded accusations of copying the French. Within a season, the international calendar had re-arranged itself around them, and American fashion spent the next two decades at the front of the world’s attention.