The concept of lingerie being visually appealing is relatively recent. Up through the first half of the 20th century women selected underwear for three major purposes: to alter their shape (first with corsets and later with girdles or bras), for reasons of hygiene, or for modesty. Women's underwear was often very large and bulky. As the 20th century progressed underwear became smaller and more form fitting. In the 1960s 'controversial' lingerie manufacturers such as Frederick's of Hollywood begin to glamorize lingerie and the idea of lingerie having a sexual appeal slowly developed.
Stays went away in the late 18th cetury, but the corset remained. Corsets in the early 19th century lengthened to the hip, the lower tabs replaced by gussets at the hip. Room was made for the bust in front with more gussets, and the back lowered. The shoulder straps disappeared in the 1840s for normal wear.(Waugh 77)