When do nylon stockings go on sale?

DuPont went with the polyamides, and nylon was born. It was the first fiber produced entirely in the laboratory and was introduced to the public in the form of women's stockings at the 1939 World's Fair. Nylon stockings went on sale in May smashing success. From then on, DuPont's production of nylon went to war materials. This set off such a shopping frenzy for stockings that most retailers set a purchase limit of two or three pairs. The price of nylon stockings subsequently rose to $10 a pair or more. No wonder Mom cried. It's true: Pantyhose (one of the most unappealing names for a garment ever invented) have been on the rise for a few seasons now, after disappearing almost entirely from many wardrobes as women not in the British royal family were freed from some of the more egregious dress code strictures of the past century.