Undergarments in History

I’m a bit skeptical of crediting World War I as the primary reason for the decline of the corset and rise of the bra. Usually things like this have multifaceted causes and I highly doubt that without World War I, flappers and Depression-era women would be wearing corsets. That said, this is an interesting discussion of the switch from the corset to the bra and the development of that garment over the decades.