Changes in dress during World War I were dictated more by necessity than fashion. As more and more women were forced to work, they demanded clothes that were better suited to their new activities. Social events had to be postponed in favor of more pressing work and the need to mourn the increasing numbers of dead, visits to the wounded, and the general gravity of the time meant that darker colors became the norm. A new monochrome look emerged that was unfamiliar to young women in comfortable circumstances. By 1915 fashionable skirts had risen above the ankle and, by 1920, to mid-calf.