During his reign which lasted for 50 years, the gods resolved to take possession of cities in which each of them should receive their own peculiar worship. Athena became the patron goddess of the city of Athens in a competition with Poseidon, as judged by Cecrops. The two raced ferociously towards the Acropolis and it was a very close race. Poseidon was the first to reach Attica and struck the acropolis with his trident and thereby created a salt sea which was known in later times by the name of the Erechthean well, from its being enclosed in the temple of Erechtheus. After him, Athena arrived and called on Cecrops to witness her act of taking possession. She planted an olive tree on the hill of the acropolis, which continued to be shown in the Pandrosium down to the latest times. But when the two gods continued to strive for possession of the country, Zeus parted them and appointed arbiters - not, as some have affirmed, Cecrops and Cranaus, nor Erysichthon, but the twelve gods. And in accordance with their verdict the country was adjudged to Athena, because Cecrops bore witness that she had been the first to plant the olive. Athena, therefore, called the city Athens after herself. Poseidon in hot anger flooded the Thriasian plain and laid Attica under the sea.