For the first time, humanity as a whole is growing older. ... Often, almost one third of the children born in any year died before their first birthday; in some subgroups, half died. Because childbirth was very hazardous, mortality among pregnant women was also high. http://morimine.sakura.ne.jp/c/rr/15_w/10For_the_first_tim.htm
――早稲田大学 人間科学部(2月27日実施)――94年