There’s at least one hanging in almost every woman’s closet.While the origination of the most basic must-have garment isn’t clear, fashion historians credit designer Coco Chanel with popularizing the “Little Black Dress” when it was shown in one of her fashion layouts in a 1926 edition of American “Vogue” magazine. Dress it up or dress it down, the LBD can go from the office to cocktails to evening wear.