Ancient Rome
Menstruation taboo is popularly held throughout history. Here's a selection of quotes.Pliny the Elder, the most famous naturalist of ancient Rome, stated that:
Contact with [menstrual blood] turns new wine sour, crops touched by it become barren, grafts die, seed in gardens are dried up, the fruit of trees fall off, the edge of steel and the gleam of ivory are dulled, hives of bees die, even bronze and iron are at once seized by rust, and a horrible smell fills the air; to taste it drives dogs mad and infects their bites with an incurable poison.
-- Pliny the Elder, Natural History, Book 7, Chapter 13Basically, menstruation blood causes rabies in dogs. Not to worry though, later in Book 28, Chapter 28, Pliny stated that a strip of cloth dipped in menstrual blood can cure rabies in humans... because homeopathy! In the same chapter, he also quoted (without agreeing) other magical beliefs about menstruation:
hailstorms, they say, whirlwinds, and lightning even, will be scared away by a woman uncovering her body while her monthly courses are upon her. The same, too, with all other kinds of tempestuous weather; and out at sea, a storm may be lulled by a woman uncovering her body merely, even though not menstruating at the time... If the menstrual discharge coincides with an eclipse of the moon or sun, the evils resulting from it are irremediable... if a woman strips herself naked while she is menstruating, and walks round a field of wheat, the caterpillars, worms, beetles, and other vermin, will fall from off the ears of corn... this is not done at sun-rise, for if so, the crop will wither and dry up. Young vines, too, it is said, are injured irremediably by the touch of a woman in this state; and both rue and ivy, plants possessed of highly medicinal virtues, will die instantly upon being touched by her.