Throughout history and different cultures, attitudes towards menstruation and menstrual blood have varied. Ranging from menstrual blood being viewed as sacred, healing and powerful to feared as dangerous and unclean. For instance, in the bible it is written "And if a women has an issue, and her issue is her flesh be blood, she shall be put apart seven days: and whosoever toucheth her shall be unclean until even..." [Levitious 15:19-30]. This is the basis upon which the Jewish tradition deems women ritually unclean and impure whilst she is menstruating. Greek-Roman cultural taboos, feared that menstrual blood soured wine, made crops wither, caused the fruit to fall off tree's and dulled the edge of steel and so forth: that's some power!
