The traditional types--myth, legend, fairy tale, and nursery saga--are designated as primitive-religious in order to express the fact that they grew up in response to the reverent credulity of simple folk. The myths of all races are the embodiment of their highest prehistoric religious thinking. The legends are their semi-historical, semi-religious thinking. The fairy and nursery stories are modified forms of the other two. Consequently they all belong together in one group. I. The Myth There are two general classes of myths: the primitive-tribal and the artificial-literary, or myths of growth and myths of art. From the point of view of ethnology, the myth of growth is primitive philosophy, and represents racial anthropomorphic thinking concerning the universe. Anthropomorphic is a term derived from the Greek ἄνθρωπος, meaning man, and μορφἠ, meaning shape or form, and is used to describe the tendency of people to represent invisible forces as having human form (for example, the Deity), or natural forces like fire and wind as being animate, volitional agents. It is probably true that, at a very early stage in the development of both the individual and the race, every object is looked upon as having life; and later, if any distinction is made between animate and inanimate, spirits are yet regarded as agents controlling the inanimate and causing changes therein. A myth of growth is the verbal expression of this attitude of the mind of a people in its wider and deeper imaginings. Doubtless after the first or second repetition of a myth, which some seer of a tribe chants in rude verse, the primitive listener is confused between fact and fancy. The non-essential incidents which the narrator adds from sheer love of making up a story are not distinguished from the incidents that really express the working of natural forces. So it happens that, in the time between the first starting up of the account and the analysis and explanation of it by some philosopher, a narrative handed down from father to son is believed in, word for word, as religious truth, though gaining details and losing its original meaning as it goes. As some one has said, it was because the Greeks had forgotten that Zeus meant _the bright sky_ that they could talk of him as a king ruling a company of manlike deities on Mount Olympus.