The first New York Fashion Week, initially called "Press Week," was organized by Eleanor Lambert in 1943 to promote American fashion during World War II, when designers could not travel to Paris. This event shifted the focus from French to American designers and led to increased coverage in major fashion magazines like Vogue. By the 1950s, it had grown in importance and was known as the "Press Week of New York," helping establish the city's prominence in the global fashion industry.