In the battle between the pagan symbols and Christian symbols, the pagans lost; Poseidon’s trident became the devil’s pitchfork, the wise crone’s pointed hat became the symbol of a witch, and Venus’s pentacle became a sign of the devil.
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Although Neptune is the Roman counterpart to the Greek Poseidon, Neptune was never as popular amongst the Roman sailors as Neptune was amongst the Greek sailors.
Cassie for Cassiopeia, the constellation, the queen tied to her chair in the northern sky, who was beautiful but vain, placed in the heavens by the sea god Poseidon as a punishment for her boasting.