The whole new Victorian concept of…

… “Haute Couture” by Parisian Designers from the House of Worth, whom demanded a different “costume” for each activity, demanded a whole new variety of undergarments and corsets too.

(Queen Victoria and Prince Albert’s wedding featured the white wedding gown for the first time, thus establishing the wedding “costume” for all future generations.  Orange blossoms and veils were added later from Jewish and other religious ceremonies along with many of the other traditions still followed for weddings)