Short Summary
After the victory against the Titans, Zeus, Hades and Poseidon divided the world to be ruled by all three of them, Poseidon kept the sea and earth, also as a gift for the help in battle, the Cyclops gave him a Trident. Being the protector of the waters, all the seamen worship him, and before they embarked on a trip, they prayed to him and used to drown a horse as sacrifice. Poseidon is the most moodiest god of the 'big three'.
