This food holiday in the United States recognizes the health benefits of a dark, leafy green vegetable in “goosefoot” family that includes Swiss chard and quinoa, as well as beets. Popularized in Europe by 16th-century Florentine noblewoman, Catherine de’ Medici, who loved the vegetable and made sure her cooks served it at every meal, spinach was promoted in the 20th century USA media by the animated sailor, Popeye, who derived superhuman street from eating the nutrient-rich green.