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.
Cleavage (breasts)
Corsets that enhanced cleavage were introduced in the mid-16th century. By the late 18th century, cleavage-enhancing corsets grew more dramatic in pushing the breasts upward. The tight lacing of corsets worn in the 19th and early 20th centuries emphasized both cleavage and the size of the bust and hips. Especially evening or ball gowns were designed to display and emphasize the décolletage.