In Roman mythology, Neptune was the God of the seas and waters. His main symbols were the trident, the horse and the dolphin. He was the ruler of the seas, oceans and rivers and shared the Cosmos with his two brothers: Pluto who was the ruler of the underworld and Jupiter the ruler of the sky. Neptunalia, Neptune’s annual two-day festival, took place in the mid-summer period, in which water was scarce due to the excessive heat and drought. According to the myths, Romans believed that earthquakes came from the sea, and they believed that they happened whenever Neptune was angry.