Breast augmentation
The modern prosthetic breast was invented in 1961, by the American plastic surgeons Thomas Cronin and Frank Gerow, and manufactured by the Dow Corning Corporation; in due course, the first augmentation mammoplasty was performed in 1962. There are five generations of medical device technology for the breast-implant models filled with silicone gel; each generation of breast prosthesis is defined by common model-manufacturing techniques.
Breastfeeding promotion
Breastfeeding promotion is a movement that came about in the twentieth century in response to high rates of bottle-feeding among mothers, and in recognition of the many health benefits to both mothers and children that breastfeeding offers. While infant formula had been introduced in developed countries in the 1920s as a healthy way to feed one's children, the emergence of research on health benefits of breastfeeding precipitated the beginning of the breastfeeding promotion movement in the United States. In the 1950s, La Leche League meetings began. The United States began incorporating benefits specific to breastfeeding promotion into its Women, Infants, and Children program in 1972. In 1989, WIC state agencies began being required to spend funds targeted at breastfeeding support and promotion, including the provision of education materials in different languages and the purchase of breast pumps and other supplies. In 1998, WIC state agencies were authorized to use funds earmarked for food to purchase breast pumps.