After leaving Zeus in Crete, Rhea tricked Cronos by giving him a large stone wrapped in swaddling clothes to eat and telling him it was Zeus. When Zeus grew up, he forced his father to regurgitate all of Zeus’s older brothers and sisters, before banishing Cronos to Tartarus, the land beneath the surface of the Earth.
Other interpretations of the Little Bear say that when Callisto was made into the constellation the Great Bear, her son Arcas became Little Bear and not Boötes.
As long ago as 600 BCE, sailors used the Little Bear to help them navigate. At the end of its tail is the North Star, or Polaris, the most northerly star in the night sky. As the North Star moves very little and is always near north, it is a very reliable marker. Once sailors understood where north was, they could begin to work out other stars and constellations and the route they needed to take.
Zeus was the son of the Titans Cronos and Rhea, but it had been prophesied that Cronos would be overthrown by one of his children. To avoid this, Cronos swallowed all his sons and daughters as soon as they had been born. When Rhea was pregnant with Zeus, she escaped to the island of Crete, where she gave birth and left Zeus in the care of two nymphs, Adrasteia and Ida. According to one myth, when he grew up, Zeus rewarded the nymph's good work by placing them into the heavens, with Ida as the Little Bear and Adrasteia as the Great Bear.
Alpha Ursae Minoris (Polaris/North Star), Beta Ursae Minoris (Kochab)
Gamma Ursae Minoris (Pherkad), Delta Ursae Minoris (Yildun)
Zeta Ursae Minoris (Akhfa al Farkadain), Eta Ursae Minoris (Anwar al Farkadain)
Epsilon Ursae Minoris