[A myth is] a story, presented as having actually occurred in a previous age, explaining the cosmological and supernatural traditions of a people, their gods, heroes, cultural traits, religious beliefs, etc. The purpose of myth is to explain, and, as Sir G.L. Gomme said, myths explain matters in “the science of a prescientific age.” Thus myths tell of the creation of man, of animals, of landmarks; they tell why a certain animal has its characteristics (e.g. why the bat is blind or flies only at night), why or how certain natural phenomena came to be (e.g. why the rainbow appears or how the constellation Orion got into the sky), how and why rituals and ceremonies began and why they continue.