Named after this first great spouse of Zeus, this Dewey-free library classification system was implemented in 2011?
Metis (mythology) Metis (Μῆτις, "wisdom," "skill," or "craft"), in ancient Greek religion, was a mythological character belonging to the Titan generation. Like several primordial figures, she was an Oceanid, in the sense that Metis was born of Oceanus and his sister Tethys, of an earlier age than Zeus and his siblings. Metis was the first great spouse of Zeus, and also his cousin. Zeus is himself titled "Mêtieta", "the wise counsellor," in the Homeric poems.
Helene (moon) Helene ( ; Greek: Ἑλένη ) is a moon of Saturn. It was discovered by Pierre Laques and Jean Lecacheux in 1980 from ground-based observations at Pic du Midi Observatory, and was designated S/1980 S 6 . In 1988 it was officially named after Helen of Troy, who was the granddaughter of Cronus (Saturn) in Greek mythology. Helene is also designated Saturn XII (12), which it was given in 1982, and Dione B, because it is co-orbital with Dione and located in its leading Lagrangian point (L ). It is one of four known trojan moons.