I have this curiosity for several reasons.History articles says that before the isdustrial revolution most people used to be quite poor and most of the population were peasants. In other words, most people used to work in the agriculture and in manual/physical work like building houses and cleaning things. In antiquity and in the middle ages I believe most women had a more athletic and straight body because of the physical duties and because by that time obesity was quite rare - women's curves come from fat storage in the hips- lean women tend to be straight up and down( I think - you can correct me if I'm wrong).And since puberty on girls used to begin a later age compared to anowadays, I also think that the average woman used to be a taller too.(People say that nowadays women are taller not the opposite).
Scientists say also that women nowadays have bigger breasts due to having more body fat today as well.Since most people in ancient times were thin and probably more muscular, I believe that women in antiquity and in ancient times had a body that were similar to male bodies. In other words the male and female bodies were more similar.I think women had a more straight and athletic body with broader shoulders and backs too with a flatter chest and smaller boobs. I think most women in the past used to be either flat chested or had small breasts - probably at most B cup size.(asian women should have been practically boobless).And I think cellullite was very rare as well.
And also women in past times did as much as manual and physical labour as men. So women in the past should have been more physical strenght too.Maybe as strong or stronger than men.And food used to be more healthy and more natural.