The mighty Poseidôn, the earth-shaker and the ruler of the sea, is second only to Zeus in power, but has no share in those imperial and superintending capacities which the Father of gods and men exhibits. He numbers a numerous heroic progeny, usually men of great corporeal strength, and many of them belonging to the Æolic race: the great Neleid family of Pylus trace their origin up to him; and he is also the father of Polyphêmus the Cyclôps, whose well-earned suffering he cruelly revenges upon Odysseus. The island of Kalaureia is his Dêlos,[126] and there was held in it an old local Amphiktyony, for the purpose of rendering to him joint honor and sacrifice: the isthmus of Corinth, Helikê in Achaia, and Onchêstos in Bœotia, are also residences which he much affects, and where he is solemnly worshipped. But the abode which he originally and specially selected for himself was the Acropolis of Athens, where by a blow of his trident he produced a well of water in the rock: Athênê came afterwards and claimed the spot for herself, planting in token of possession the olive-tree which stood in the sacred grove of Pandrosos: and the decision either of the autochthonous Cecrops, or of Erechtheus, awarded to her the preference, much to the displeasure of Poseidôn. Either on this account, or on account of the death of his son Eumolpus, slain in assisting the Eleusinians against Erechtheus, the Attic mythes ascribed to Poseidôn great enmity against the Erechtheid family, which he is asserted to have ultimately overthrown: Theseus, whose glorious reign and deeds succeeded to that family, is said to have been really his son.[127] In several other places,—in Ægina, Argos and Naxos,—Poseidôn had disputed the privileges of patron-god with Zeus, Hêrê and Dionysos: he was worsted in all, but bore his defeat patiently.[128] Poseidôn endured a long slavery, in common with Apollo, gods as they were,[129] under Laomedôn, king of Troy, at the command and condemnation of Zeus: the two gods rebuilt the walls of the city, which had been destroyed by Hêraklês. When their time was expired, the insolent Laomedôn withheld from them the stipulated reward, and even accompanied its refusal with appalling threats; and the subsequent animosity of the god against Troy was greatly determined by the sentiment of this injustice.[130] Such periods of servitude, inflicted upon individual gods, are among the most remarkable of all the incidents in the divine legends. We find Apollo on another occasion condemned to serve Admêtus, king of Pheræ, as a punishment for having killed the Cyclôpes, and Hêraklês also is sold as a slave to Omphalê. Even the fierce Arês, overpowered and imprisoned for a long time by the two Alôids,[131] is ultimately liberated only by extraneous aid. Such narratives attest the discursive range of Grecian fancy in reference to the gods, as well as the perfect commingling of things and persons, divine and human, in their conceptions of the past.