Blood Rain Pluvia sanguis
Rain was predicted in Denmark and southern Sweden this past weekend, but it wasn’t any ordinary rain, it was blood rain. Superstitions have long been held regarding weather phenomena, and other natural processes. Blood rain was first mentioned in literature in Homer’s Illiad as a portent for slaughter in battle, and later as one of several portents for the Black Death in Germany in the 14th Century. Widely believed until the 17th Century to actually be blood, and therefore perceived as a bad omen, it is actually just an accumulation of dust and particles from the Sahara Desert.