You wear clothes. But do you know how the fashion industry decides what to launch, when to launch it, and why you see summer clothes on a runway when it’s barely autumn? Because fashion doesn’t run on weather. It runs on a calendar most of us never see. And understanding this invisible system is one of the best ways to understand how the fashion industry thinks, works, and communicates. The Godmother of New York Fashion’s Calendar This story doesn’t begin with Chanel, Dior, or Vogue. It begins with a woman carrying a notebook. Her name was Ruth Finley. In the 1940s, New York’s fashion industry had a surprisingly ordinary problem:…