|1784 Robe a l'Anglaise (source? is this The Met?)|
You see, black was not a color well-regarded by women of days gone by. Black was reserved for mourning, and seldom worn in-whole for any other reason. It was not a color young ladies appreciated at all - we have many examples of literary young women complaining about how long they have to wear mourning clothes, for black is so unbecoming. With the black being culturally associated withe Death, naturally white would represent the opposite: Life, health, youth, purity.
|1820s from LACMA|
|1865 (Met?) a stunning confection in creme, light greens.|
|Worth gowns, OMG|
|1910, from Worth.|
|1920s Musee Mccord.|