Modern understanding of Greek mythology mythology to the still poorly understood pre-Hellenic societies of Greece, such as the Minoans and so-called Pelasgians. This is especially true in the case of chthonic deities and mother goddesses. Historians of religion were fascinated by a number of apparently ancient configurations of myth connencted with Crete: the god as bull — Zeus and Europa; Pasiphaë who yields to the bull and gives birth to the Minotaur; agrarian mysteries with a sacred marriage (Demeter's union with Iasion) etc. Crete, Mycenae, Pylos, Thebes and Orchomenus figure so large in later Greek mythology. For some, the three main generations of gods in
Greek mythology subterranean house of Hades and his predecessors, home of the dead. Influences from other cultures always afforded new themes. According to Classical-era mythology, after the overthrow of the Titans, the new pantheon of gods and goddesses was confirmed. Among the principal Greek gods were the Olympians, residing on Mount Olympus under the eye of Zeus. (The limitation of their number to twelve seems to have been a comparatively modern idea.) Besides the Olympians, the Greeks worshipped various gods of the countryside, the satyr-god Pan, Nymphs (spirits of rivers), Naiads (who dwelled in springs), Dryads (who were spirits of the trees),