Poseidon#Lovers

The earliest attested occurrence of the name, written in Linear B, is {{lang|gmy|{{script|Linb|𐀡𐀮𐀅𐀃}}}} Po-se-da-o or {{lang|gmy|{{script|Linb|𐀡𐀮𐀅𐀺𐀚}}}} Po-se-da-wo-ne,Minoan.Deaditerranean [https://web.archive.org/web/20160318115428/http://minoan.deaditerranean.com/resources/linear-b-sign-groups/po/po-se-da-o/ po-se-da-o] which correspond to {{lang|grc|Ποσειδάων}} (Poseidaōn) and {{lang|grc|Ποσειδάϝoνος}} (Poseidawοnos) in Mycenean Greek; in Homeric Greek, it appears as {{lang|grc|Ποσιδάων}} (Posidaōn); in Aeolic, as {{lang|grc|Ποτε(ι)δάων}} (Pote(i)daōn); in Doric, as {{lang|grc|Ποτειδάν}} (Poteidan) and {{lang|grc|Ποτειδᾶς}} (Poteidas); in Arcadic, as {{lang|grc|Ποσoιδᾱν}} (Posoidan). In inscriptions with Laconic style from Tainaron, Helos and Thuria as {{lang|grc|Ποὁιδάν}} (Pohoidan), indicating that the Dorians took the name from the older population.Nilsson,Geschichte Vol I, 444-445 The form {{lang|grc|Ποτειδάϝων}} (Poteidawōn) appears in Corinth.{{cite web|author=Liddell & Scott |work=A Greek-English Lexicon |url=https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3D*poseidw%3Dn |title=Ποσειδῶν |archive-url=https://web.archive.org/web/20121009114528/http://www.perseus.tufts.edu/hopper/text? |archive-date=9 October 2012}}

The origins of the name "Poseidon" are unclear and the possible etymologies are contradictive among the scholars. One theory breaks it down into an element meaning "husband" or "lord" (Greek {{lang|grc|πόσις}} (posis), from PIE *pótis) and another element meaning "earth" ({{lang|grc|δᾶ}} (da), Doric for {{lang|grc|γῆ}} (gē)), producing something like lord or spouse of Da, i.e. of the earth; this would link him with Demeter, "Earth-mother".Pierre Chantraine Dictionnaire etymologique de la langue grecque Paris 1974–1980 4th s.v.; Lorenzo Rocci Vocabolario Greco-Italiano Milano, Roma, Napoli 1943 (1970) s.v. Burkert finds that "the second element δᾶ- remains hopelessly ambiguous" and finds a "husband of Earth" reading "quite impossible to prove". According to Beekes in Etymological Dictionary of Greek, "there is no indication that δᾶ means 'earth'",Beekes. Etymological Dictionary of Greek, Brill, 2009, p. 324 although the root da appears in the Linear B inscription E-ne-si-da-o-ne, "earth-shaker".[http://www.csun.edu/~hcfll004/mycen.html Adams, John Paul, Mycenean divinities] – List of handouts for California State University Classics 315. Retrieved 7 March 2011.

Another theory interprets the second element as related to the (presumed) Doric word *δᾶϝον dâwon, "water", Proto-Indo-European *dah₂- "water" or *dʰenh₂- "to run, flow", Sanskrit दन् dā́-nu- "fluid, drop, dew" and names of rivers such as Danube (< *Danuvius) or Don. This would make *Posei-dawōn into the master of waters.Michael Janda, pp. 256–258.

Plato in his dialogue Cratylus gives two traditional etymologies: either the sea restrained Poseidon when walking as a "foot-bond" (ποσίδεσμον), or he "knew many things" (πολλά εἰδότος or πολλά εἰδῶν).Plato, Cratylus, 402d–402e

Beekes suggests that the word has probably a Pre-Greek origin.Beekes, Etymological Dictionary of Greek, p. 324. The original form was probably the Mycenean Greek {{lang|grc|Ποτ(σ)ειδάϝων}} (Pot(s)eidawōn). "The inervocalic aspiration suggests a Pre Greek (Pelasgian) origin rather than an Indoeuropean one".van der Toorn, Karel; Becking, Bob; van der Horst, Pieter Willem (1999), Dictionary of Deities and Demons in the Bible (second ed.), Grand Rapids, Michigan: William B. Eerdman's Publishing Company, {{ISBN|0-8028-2491-9}}: [https://books.google.com/books?id=yCkRz5pfxz0C] p.659

If surviving Linear B clay tablets can be trusted, the

names po-se-da-wo-ne and Po-se-da-o ("Poseidon") occur with greater frequency than does di-u-ja ("Zeus"). A feminine variant, po-se-de-ia, is also found, indicating a lost consort goddess, in effect the precursor of Amphitrite.{{original research inline|date=February 2025}}

Poseidon was the chief god at Pylos. The title wa-na-ka appears in the inscriptions. Poseidon was identified with wanax from the Homeric era to classical Greece. (anax). The title didn't mean only king, but also protector. Wanax had chthonic aspects, and he was closely associated with Poseidon, who had the title "Lord of the Underworld". The chthonic nature of Poseidon is also indicated by his title E-ne-si-da-o-ne (Earth-shaker) in Mycenean Knossos and Pylos. Through Homer the epithet was also used in classical Greece. (ennosigaios, ennosidas).{{sfn|Dietrich|2004|pages=180-185}}

Po-tini-ja (potnia: lady or mistress) was the chief goddess at Pylos and she was closely associated with Poseidon. She was the Mycenean goddess of nature and Poseidon—Wanax is one from the gods who may be considered her "male paredros". The earth shaker received offerings in the cave of the goddess of childbirth Eileithyia at Amnisos in Crete. Poseidon is allied with Potnia and the divine child.{{sfn|Dietrich|2004|pages=175–180, 220}}

Wa-na-ssa (anassa:queen or lady) appears in the inscriptions usually in plural. (Wa-na-ssoi). The dual number is common in Indoeuropean grammar (usually for chthonic deities like the Erinyes) and the duality was used for Demeter and Persephone in classical Greece (the double named goddesses).A.B. Stallmith in GRBS 18(2008) p.117,119, "The name of Demeter Thesmophoros".[https://www.researchgate.net/publication/228370663_The_Name_of_Demeter_Thesmophoros/fulltext/0000835a0cf23f86393d507b/The-Name-of-Demeter-Thesmophoros.pdf p.116]Mylonas, "Mycenean age", p.159: "Wa-na-ssoi, wa-na-ka-te, (to the two queens and the king). Wanax is best suited to Poseidon, the special divinity of Pylos. The identity of the two divinities addressed as wanassoi, is uncertain" Potnia and wanassa refer to identical deities or two aspects of the same deity.{{sfn|Dietrich|2004|pages=180-185}}

E-ri-nu (Erinys) is attested in the inscriptions.Chadwick, [https://archive.org/details/mycenaeanworld00chad/page/98 p. 98]. In some ancient cults Erinys is related to Poseidon and her name is an epithet of Demeter.

It is possible that Demeter appears as Da-ma-te in a Linear B inscription (PN EN 609), however the interpretation is still under dispute.{{cite book|last1=Ventris |first1=Michael |last2=Chadwick |first2=John |title=Documents in Mycenean Greek |date=21 May 2015 |page=242 |publisher=Cambridge University Press |isbn=978-1-107-50341-0 |url=https://books.google.com/books?id=AkgPCAAAQBAJ}}{{sfn|Dietrich|2004|page=172 n. 218}} Si-to Po-tini-ja is probably related with Demeter as goddess of grain.Mylonas, "Mycenean age", p. 159-161.

Tablets from Pylos record sacrificial goods destined for "the Two ladies and the Lord" (or "to the Two Queens and the King": wa-na-soi, wa-na-ka-te). Wa-na-ssoi may be related with Demeter and Persephone, or their precursors, goddesses who were not associated with Poseidon in later periods."In Greek popular religion, the chthonic Potniai (Wanassoi) and the Erinyes are closely related to the Eleusinian Demeter":Dietrich, p.179-180 [https://books.google.com/books?id=TZVsDwAAQBAJ&pg=PA189 The origins of Greek religion 189-190]

During the Mycenean period, the ancestral male gods of the Myceneans were probably not represented in human forms, and the information given by the tablets found at Pylos and Knossos is insufficient. Poseidon was the chief deity at Pylos and Thebes. He is identified with Anax and he carried the title "Master of the Underworld".{{citation needed|date=August 2024}} Anax had probably a cult associated with the protection of the palace.{{sfn|Dietrich|2004|pages=180-185}} In Acrocorinth he was worshipped as Poseidon Anax during the Mycenean age.{{sfn|Dietrich|2004|pages=175–180}} In the city there was the famous spring Peirene which in a myth is related to the winged horse Pegasus.Nilsson, "Geschicte", p.449,450 In Attica there was a cult of Anax heroes who was connected to Poseidon.{{sfn|Dietrich|2004|pages=175–180}} A cult title of Poseidon was "earth-shaker" and in Knossos he was worshipped together with the goddess Eleithyia who was related to the annual birth of the divine child.{{sfn|Dietrich|2004|pages=175–180}} Potnia was the Mycenean goddess of nature and she was the consort of Poseidon at Pylos. She is mentioned together with bucrania in decorated jugs and he was associated with the animals and especially to the bull.{{sfn|Dietrich|2004|pages=180-185}} In Athens Poseidon was an inland god who created the salt-sea Erecthēιs ({{lang|grc|Ερεχθηίς}}), "sea of Erechtheus". In Acropolis his cult was superimposed on the cult of the local ancestral figure Erechtheus. In Athens and Asine he was worshipped in the house of the king during the Mycenean period. The bull was the favourite animal for sacrifices and it seems that horses were rarely used during the burial of the Mycenean leaders.

File:Poseidon pursuing Met 41.162.139.jpg, 480-450BC. Metropolitan Museum of Art, Manhattan NY]]

In the Arcadian myths, Poseidon is related to Demeter and Despoina (another name of Kore- Persephone) and he was worshipped with the surname Hippios in many Arcadian cities. At Thelpusa and Phigalia there were sister worships which are very important for the study of primitive religions. In these cults Demeter and Poseidon were chthonic divinities of the underworld.[https://archive.org/details/in.ernet.dli.2015.56574/page/49/mode/2up Farnell Cults III, 50-55]

Near Thelpusa the river Ladon descended to the sunctuary of Demeter Erinys (Demeter-Fury). During her wandering in search of her daughter Demeter changed into a mare to avoid Poseidon. Poseidon took the form of a stallion and after their mating she gave birth to a daughter whose name was not allowed to be told to the unitiated and a horse called Arion (very swift). Her daughter obviously had the shape of a mare too. At first Demeter became angry and she was given the surname Erinys (fury) by the Thelpusians. The Erinyes were deities of vangeance, and Erinys had a similar function with the goddess Dike (Justice).Bowra,"The Greek experience", p.67-121 In the very old myth of Thelpusa Demeter-Erinys and Poseidon are divinities of the underworld in a pre-mythic period. Poseidon appears as a horse. In Greek folklore the horses had chthonic associations and it was believed that they could create springs. In European folklore the water-creatures or water-spirits appear with the shape of a horse or a bull. In Greece the river god Acheloos is represented like a bull or a man-bull.Nilsson, "Geschichte" Vol I, 450 and 450A4: J.Grimm, "Deutsche Mythology": Horse and springs, horse as a water-spirit Many people when sacrificed to Demeter should make a premilinary sacrifice to Acheloos

At Phigalia Demeter had a sanctuary in a cavern and she was given the surname Melaina (black). The goddess was related to the black undeworld. In a similar myth Poseidon appears as horse and Demeter gives birth to a daughter whose name was not allowed to be told to the unitiated (At Lycosura her daughter was called Despoina). Demeter angry with Poseidon put on a black dressing and shut herself in the cavern. When the fruits of the earth were perished, Zeus sent the Moirai to Demeter who listened to them and led aside her wrath. In this cult we have traces of a very old cult of Demeter and Poseidon as deities of the underworld.

File:Bayreuth Hofgarten Neues Schloss, Neptun-Poseidon (Original, Orangerie), 11.07.08.jpg

In another Arcadian myth when Rhea had given birth to Poseidon, she told Cronus that she had given birth to a horse, and gave him a foal to swallow instead of the child.[http://www.perseus.tufts.edu/hopper/text?doc=Paus.+8.8.2&fromdoc=Perseus%3Atext%3A1999.01.0160 Pausanias 8.8.2] In the Homeric Hymn Demeter puts a dark mourning robe around her shoulders as a sign of her sorrow. Demeter's mare-form was worshipped into historical times. The xoanon of Melaina at Phigalia shows how the local cult interpreted her, as goddess of nature. A Medusa type with a horse's head with snaky hair, holding a dove and a dolphin, probably representing her power over air and water.L. H. Jeffery (1976). Archaic Greece: The Greek city states c.800-500 B.C (Ernest Benn Limited) p 23 {{ISBN|0-510-03271-0}}

The myth of Poseidon appearing as a horse and mating with Demeter was not localized in Arcadia. At Haliartos in Boeotia near Thebes Poseidon appears as stallion. He mates with Erinys near the spring of Tilpousa and she gives birth to the faboulous horse Arion. At Tilpusa we have a very old cult of the chthonic deities Erinys and Poseidon. The water-god PoseidonFarnell CultsIII,53 [https://archive.org/details/in.ernet.dli.2015.56574/page/53/mode/2up Farnell CultsIII, 53] appears as a horse which seems to represent the water-spirit and Erinys is probably the personification of a revenging earth-spirit.Nilsson "Geschichte", Vol I, p.100-101 From earlier times at Delphi Poseidon was joined in a religious union with the earth-goddess Ge. She is represented as a snake which is a form of the earth-spirit.

In the Theogony of Hesiod Poseidon once slept with the monstrous Medousa near the mountain Helikon. She conceived the winged horse Pegasus who sprang out of her body when Perseus cut off her head. Pegasus stuck the ground with his hoof and created the famous spring Hippocrene near Helikon.

Praxidicai were female deities of judicial punishment worshipped in the region of Haliartos in the historical times. Ttheir origin is probably the same with Erinys. Their images depicted only the heads of the goddesses probably a representation of the earth goddess emerging from the ground. Praxidice is and epithet of Persephone in the Orphic Hymn. Persephone is sometimes depicted with her head emerging from the ground.Burkert, "Greek religion", p.42Nilsson, "Geschichte" Vol I, p.472: "Anodos of Pherephata", Tables 39,1 and 39,2

File:Neptuno colosal (Museo del Prado) 01.jpg sanctuary in Isthmia, where it was described by Pausanias. Prado Museum, Madrid]]

During the Mycenean period Poseidon was worshipped in several regions in Greece. At Pylos and some other cities he was a god of the underworld (Lord of the Underworld) and his cult was related to the protection of the palace. He carried the title anax, king or protector. His consort potnia, lady or mistress, was the Mycenean goddess of nature. Her main aspects were birth and vegetation.{{sfn|Dietrich|2004|pages=180-185}} Poseidon had the title "Enesidaon" (earth-shaker) and in Crete he was associated with the goddess of childbirth Eleithyia. Through Homer the Mycenean titles were also used in classical Greece with similar meaning. He was identified with anax and he carried the epithets "Ennosigaios" and "Ennosidas" (earth-shaker). Potnia was a title which accompanied female goddesses.{{sfn|Dietrich|2004|pages=175–185}} The goddess of nature survived in the Eleusinian cult, where the following words were uttered: "Mighty Potnia bore a strong son".{{sfn|Dietrich|2004|page=167}} In the heavily sea-dependent Mycenaean culture, there is not sufficient evidence that Poseidon was connected with the sea; it is unclear whether "Posedeia" was a sea-goddess. The Greeks invaders came from far inland and they were not familiarized with the sea.Hard,"Greek mythology", p. 99 [https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA99 p.99]

In the primitive Boeotian and Arcadian myths Poseidon, the god of the underworld, appears as a horse and he is mating with the earth goddess. The earth goddess is called Erinys or Demeter and she gives birth to the fabulous horse Arion and the unnamed daughter Despoina, which is another name of Persephone. The horse represents the divine spirit (numen) and is related to the liquid element and the underworld.F.Schachermeyer: Poseidon und die Entstehung des Griechischen Gotter glaubens :Nilsson p 444 In Greek folklore the horse is associated with the underworld and it was believed that it had the ability to create springs. In the European folklore the water-spirit appears with the shape of a horse or a bull. In Greece the river god Acheloos is represented as a bull or a man-bull. Burkert suggests that the Hellenic cult of Poseidon as a horse god may be connected to the introduction of the horse and war-chariot from Anatolia to Greece around 1600 BC.

In the Boeotian myth Poseidon is the water-god and Erinys is a goddess of the underworld.

She is probably the personification of a revenging earth spiritChadwick, [https://archive.org/details/mycenaeanworld00chad/page/98 p. 98] and it seems that she had a similar function with the goddess Dike (Justice). At the spring "Tilpousa" she gives birth to Arion. In the Arcadian myth Poseidon Hippios (horse) is mating with the mare-Demeter. At Thelpousa Demeter-Erinys gives birth to Arion and to an unnamable daughter who has the shape of a mare. In some neighbour cults the daughter was called Despoina (mistress), which is another name of Persephone. The theriomorphic form of gods seems to be local in Arcadia in an old religion associated with xoana.

File:Poseidon Dionysos Zeus neck-amphora Nationalmuseet.jpg, Copenhagen]]

According to some theories Poseidon was a Pelasgian god or a god of the Minyans. Traditionally the Minyans are considered Pelasgians and they lived in Thessaly and Boeotia. In Thessaly (Pelasgiotis) there was a close relation to the horses. Poseidon created the first horse Skyphios hitting a rock with his trident and managed in the same way to drain the valley of Tempe. The Thessalians were famous charioteers.Jeffery, "The city states", p.72:"The proud title dikaios (the Just) in Thessaly was borne by a good brood-mare of Pharsalus, whose foals all resembled their sires." Some of the oldest Greek myths appear in Boeotia. In ancient cults Poseidon was worshipped as a horse. The horse Arion was a sire of Poseidon-horse with Erinys and the winged horse Pegasus a sire of Poseidon foaled by Medousa. At Onchestos he had an old famous festival which included horseracing. However it is possible that Poseidon like Zeus was a common god of all Greeks from the beginning.

It is possible that the Greeks did not bring with them other gods except Zeus, Eos, and the Dioskouroi. The Pelasgian god probably represented the fertilising power of water, and then he was he was considered god of the sea. As the sea encircles and holds the earth in its position, Poseidon is the god who holds the earth and who has the ability to shake the earth."gaiaochos ennosigaios": holder of the earth earthshaker: [http://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.04.0104:entry=poseidon-bio-1 Smith Poseidon] The primeval water who encircled the earth ( Oceanus) is the origin of all rivers and springs. They are children of Oceanus and Tethys.

Farnell suggested that Poseidon was originally the god of the Minyans who occupied Thessaly and Boeotia. There is a similarity between the Boeotian and Arcadian myths and especially between the myths which represent the god of the waters Poseidon as a horse. The mythical horse Arion appears in both regions. The offspring of Poseidon winged horse Pegasus creates famous springs near Helikon and at Troizen. Some springs of Poseidon have similar names in Boeotia and Peloponnese. It is possible that the name of Poseidon Helikonios in Boeotia whose fest included horseracing derives from the mountain Helikon. The Minyans had trade contacts with Mycenean Pylos and the Achaeans adopted the cult of Poseidon Helikonios. The cult spread in Peloponnese and then to Ionia when the Achaeans migrated to Asia Minor.

File:Dionysos Ariadne gods Louvre G41.jpg, Paris]]

Nilsson suggested that Poseidon was probably a common god of all Greeks from the beginning. The Greeks occupied Thessaly, Boeotia and Peloponnese during the Bronze Age. In all these regions Poseidon was the god of the horses. The origin of his cult was Peloponnese and he was the inland god of the Achaeans, the god of the "horses" and the "earthquakes". When the Achaeans migrated to Ionia there was a transition to regarding Poseidon as the god of the sea because the Ionians were sea-dependent. With no doubt he was originally the god of the waters. The Greeks believed that the cause of the earthquakes was the erosion of the rocks by the waters, by the rivers in Peloponnese which they saw to disappear into the earth and then to burst out again. The god of the waters became the "earth-shaker".Iliad 13.43: "Poseidawn gaiaochos ennosigaios " (carrying the earth, earthshaker) [http://www.perseus.tufts.edu/hopper/text?doc=Perseus:abo:tlg,0012,001:13:43&lang=original Iliad 13.43] This is what the natural philosophers Thales Anaximenes and Aristotle believed and could not be different from the folk belief.

Nilsson ,"Geschicte", Vol I, p.450 : a)Thales: Plutarch, plac.phil. p. 896 C, b)Anaximenes-Aristotle:Aristotle, Meteorogica 27 p. 365 . All Inform. by Seneca quest. nat. VI 6;10;20 In the Greek legends Arethusa and the river Alpheus traversed underground under the sea and reappeared at Ortygia.Pindar, Pyth, II v,7:Nilsson, "Geschichte", Vol I, p.492.[http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0160%3Abook%3D5%3Achapter%3D7%3Asection%3D3 Pausanias 5.7.3]

In any case, the early importance of Poseidon can still be glimpsed in Homer's Odyssey, where Poseidon rather than Zeus is the major mover of events. In Homer, Poseidon is the master of the sea.{{Cite web |url=http://www.crystalinks.com/poseidon.html |title=Poseidon – God of the Sea |website=www.crystalinks.com |access-date=2017-11-06 |archive-url=https://web.archive.org/web/20171111162224/http://www.crystalinks.com/poseidon.html |archive-date=11 November 2017 |url-status=live }} He is described as a majestic, scary, and avenging monarch of the sea.

File:God of Cape Artemision 01.JPG, bronze statue probably of Poseidon, Severe style 480-440 BC. The statue was possibly a thank offering to the god after the battle of Artemision (480 BC)."In 480 BC a great storm at Magnesia and then at Artemision heavily damaged the Persian fleet. After the war the Greeks gave to Poseidon the epithet soter (savior). The agalma found near Artemision was probably a thank offering dedicated to Poseidon-Soter (saviοr)" : Burkert, "Greek religion" [https://archive.org/details/greekreligion0000burk/page/136/mode/2up?view=theater p.137]National Archaeological Museum Athens.]]

:I begin to sing about Poseidon, the great god,

:mover of the earth and fruitless sea

:god of the deep who is also lord of Helicon Helikonios, ({{lang|grc|Ελικώνιος}}): The word may mean, "god of the eddying waves" :Nilsson, Geschichte. p.447 A6 and wide Aegae.

:A two-fold office the gods allotted you,

:O Shaker of the Earth, to be a tamer of horses

:and a saviour of ships!

:Hail, Poseidon, Holder of the Earth, dark-haired lord!

:O blessed one, be kindly in heart

:and help those who voyage in ships!

:(Homeric Hymn to Poseidon)The Homeric Hymns and Homerica with an English Translation by Hugh G. Evelyn-White. Homeric Hymns. Cambridge, MA., Harvard University Press; London, William Heinemann Ltd. 1914.[https://archive.org/details/greekreligion0000burk/page/136/mode/2up?view=theater Homeric Hymn to Poseidon]

The worship of Poseidon was extended all over Greece and southern Italy, but he was specially honoured in Peloponnese which is called "the residence of Poseidon" and in the Ionic cities. The significance of his cult is indicated by the names of cities like Poteidaia in the Chalkidiki peninsula and Poseidonia (Paestum), a Greek colony in Italy. Poseidion is a frequent Greek placename along coastlines and the name of a Greek colony at the Syrian coast.[https://www.perseus.tufts.edu/hopper/text?doc=urn:cts:greekLit:tlg0060.tlg001.perseus-grc2:19.79 Diodorus 19.79.1]

In Ionia his cult was introduced by Achaean colonists from Greece in the 11th century BC. Traditionally the colonists came from Pylos where Poseidon was the principal god of the city. The god had a famous temple near the mountain Mycale. The month Poseidaon is the month of the winter-storms. The name of the month was used in Ionic territories, in Athens, in the islands of the Aegean and in the cities of Asia Minor. At Lesbos and Epidauros the month was called Poseidios. During this month Poseidon was worshipped as the "master of the sea" in a bright cult.

File:Athena Painter - ABV extra - Poseidon on hippocamp - Oxford AM 1889-1011 - 01.jpg. Ashmolean Museum, Oxford ]]

Poseidon was a major civic god of several cities: in Athens, he was second only to Athena in importance, while in Corinth and many cities of Ionia and Magna Graecia he was the chief god of the polis. Many fests of Poseidon included athletic competitions and horseracing.

In Corinth his cult was related to the Isthmian games. In Arcadia his cult was related to the games "Hippocrateia" and at Sparta he had a temple near an Hippodrome. In Onchestos of Boeotia horseracing was a part of the athletic games in honour of the god.

Poseidon was considered a symbol of unity. The Panionia the festival of all Ionians near Mycale were celebrated in honour of Poseidon Helikonios and was the place of meeting of the Ionian League."The form is the same with Helikon. Traditionally the adjective derives from the town Helike of Achaea . However it is possible that it derives from "helix" (twisted, spiral) and Poseidon would be the "god of the eddying waves"":Nilsson, "Geschichte, p.447 A6Jeffery, The city states, p.208 He was the patron god of the Amphictiony of Kalaureia. At Onchestos of Boeotia he was worshipped as Poseidon Helikonios. His sanctuary became the place of meeting of the second Boeotian league.[http://www.perseus.tufts.edu/hopper/text?doc=Hom.%20Il.%202.506&lang=original Iliad 2.506] At Helike of Achaea there was the famous temple of Poseidon Helikonios, which was the place of meeting of the Achaean League.{{cite journal | last=Katsonopoulou | first=Dora | year=2002 | title=Helike and her Territory in Historical Times | journal=Pallα as | volume=58 | pages=175–182 | issn =0031-0387 }}

The "master of the sea" creates

clouds and storms, but he is also the protector of the sailors. He has the ability to calm the sea for a good voyage and save those who are in danger. He was worshipped with the surname "savior" as the protector of the seafarers and the fishermen. He is the "earthshaker", however he is also the protector against the earthquakes. In some cults he was worshipped as the "bringer of safety" or "protector of the house and the foundations".

The god was considered the creator of the first horse, and it was believed that he taught men the art of taming horses. He was depicted on horseback, or riding in a chariot drawn by two or four horses. He had a lot of temples in Arcadia, with the surname Hippios (of the horse) and he was also transformed into a horse to seduce Demeter.

File:Poseidon with fish Nationalmuseet 13407.jpg, Copenhagen.]]

Being the god of waters, Poseidon is related to the primeval water which encircles the earth (Oceanus), who is the father of all rivers and springs. He can create springs with the strike of his trident. He was worshipped as "ruler of the springs" and "leader of the nymphs" Nilsson, "Geschichte" p.450 A4. In Thessaly it was believed that he drained the area cutting the rocks of Tempe with his trident.[https://www.perseus.tufts.edu/hopper/morph?l=petrai%2Fos&la=greek#lexicon πετραῖος] In Greek folklore the horse can also create springs .

As god of the sea Poseidon was also god of fishing and especially of sea-fishing. Tuna was offered to him by the fishermen during the festal meal for the protection of the nets . Tuna and later dolphin was his attribute. He was worshipped in many islands and cities by the coast. At Corcyra a roaring bull near the sea-shore quaranteed a good fishing. The devastating storm of Poseidon is related to fishermen and they poured drink offerings to Poseidon -savior into the sea. The god of inland waters is very close to vegetation and Poseidon was worshipped in many cities as god of vegetation. Haloa in Athens was a fest of vegetation. The Protrygaia, a wine-fest seem to belong to Dionysus and Poseidon.Nilsson, Geschichte, 449-452

In several cities Poseidon was worshipped in relation to the genealogy and the phratry. At Tinos he was worshipped as a healer-god, probably a forerunner of the famous Evangelistria.

The bull is related to Poseidon mainly in Ionia. The sacrifice of a bull offered to Poseidon is mentioned by Homer in an Ionic festival (Panionia).[http://www.perseus.tufts.edu/hopper/text?doc=Hom.+Il.+20.404&fromdoc=Perseus%3Atext%3A1999.01.0134 Iliad 20.404] The sacrifices offered to Poseidon consisted of black and white bulls which were killed or thrown into the sea. Boars and rams were also used and in Argolis horses were thrown into a well as a sacrifice to him.[http://www.perseus.tufts.edu/hopper/text?doc=Paus.+8.7.2&fromdoc=Perseus%3Atext%3A1999.01.0160 Pausanias 8.7.2]

File:Poseidon Polybotes Cdm Paris 573.jpg: Poseidon fights Polybotes. The god broke off a piece of the island of Kos called Nisyros, and threw it on top of the giant.Strabo, [https://www.perseus.tufts.edu/hopper/text?doc=Strab.+10.5.16 10.5.16]. The mention of a millstone, in the poem fragment by Alcman (mentioned above) may be an early reference to the island of Nisyros, see Hanfmann 1937, pp. 476; Vian and Moore 1988, p. 192. Tondo of an Attic red-figure kylix, ca. 475-470 BC. Painter of the Paris Gigantomachy (eponymous vase), circle of the Brygos Painter found in Vulci BnF Museum (Cabinet des médailles), Paris .]]

In his benign aspect, Poseidon was seen as creating new islands and offering calm seas. When offended or ignored, he supposedly struck the ground with his trident and caused chaotic springs, earthquakes, drownings and shipwrecks.

Sailors prayed to Poseidon for a safe voyage, sometimes drowning horses as a sacrifice; in this way, according to a fragmentary papyrus, Alexander the Great paused at the Syrian seashore before the climactic battle of Issus, and resorted to prayers, "invoking Poseidon the sea-god, for whom he ordered a four-horse chariot to be cast into the waves".Karl Wilhelm Ludwig Müller's ed. Papyrus Oxyrrhincus Fragmenta Historicorum Graecorum 148, 44, col. 2; quoted by Robin Lane Fox, Alexander the Great (1973) 1986:168 and note. Alexander also invoked other sea deities: Thetis, mother of his hero Achilles, Nereus and the Nereids

According to Pausanias, Poseidon was one of the caretakers of the oracle at Delphi before Olympian Apollo took it over. Apollo and Poseidon worked closely in many realms: in colonization, for example, Delphic Apollo provided the authorization to go out and settle, while Poseidon watched over the colonists on their way, and provided the lustral water for the foundation-sacrifice. At one time Delphi belonged to him in common with Ge, but Apollo gave him the psychopompeion Kalaureia as a compensation for it.[http://www.perseus.tufts.edu/hopper/text?doc=Paus.+2.33.2&fromdoc=Perseus%3Atext%3A1999.01.0160 Pausanias 2.33.2]

Xenophon's Anabasis describes a group of Spartan soldiers in 400–399 BC singing to Poseidon a paean—a kind of hymn normally sung for Apollo. Like Dionysus, who inflamed the maenads, Poseidon also caused certain forms of mental disturbance. A Hippocratic text of ca 400 BC, On the Sacred Disease{{Cite web |url=http://classics.mit.edu/Hippocrates/sacred.html |title=(Hippocrates), On the Sacred Disease, Francis Adams, tr. |access-date=22 December 2007 |archive-url=https://web.archive.org/web/20110524210044/http://classics.mit.edu/Hippocrates/sacred.html |archive-date=24 May 2011 |url-status=live }} says that he was blamed for certain types of epilepsy.

Poseidon is still worshipped today in modern Hellenic religion, among other Greek gods. The worship of Greek gods has been recognized by the Greek government since 2017.{{cite news |last1=Brunwasser |first1=Matthew |title=The Greeks Who Worship Ancient Gods |url=https://www.bbc.com/news/magazine-22972610 |access-date=July 24, 2020 |agency=BBC |date=June 20, 2013}}{{cite web |last1=Souli |first1=Sarah |title=Greece's Old Gods Are Ready for Your Sacrifice |url=https://theoutline.com/post/2843/hellenism-legalized-greece?zd=1&zi=rnorsdnx |website=The Outline |access-date=July 24, 2020 |date=January 4, 2018}}

File:Poszeidón Epoptész.png

Poseidon had a variety of roles, duties and attributes. He is a separate deity from the oldest Greek god of the sea Pontus. In Athens his name is superimposed οn the name of the non-Greek god Erechtheus {{lang|grc|Ἑρεχθεύς}} (Poseidon Erechtheus).Walter Burkert (Peter Bing, tr.) Homo Necans 1983, p. 149 gives references for this observation{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=erexqe%2Fus&la=greek#lexicon| title=Ἑρεχθεύς}}

In the Iliad, he is the lord of the sea and his golden palace is built in Aegai, in the depth of the sea.[https://www.perseus.tufts.edu/hopper/text?doc=Hom.+Il.+13.21&fromdoc=Perseus%3Atext%3A1999.01.0134 Iliad 13.21] Nilsson Vol I p.446 His significance is indicated by his titles Eurykreion ({{lang|grc|Εὐρυκρείων}}) "wide-ruling", an epithet also applied to Agamemnon{{cite web| url=https://www.perseus.tufts.edu/hopper/text?doc=Hom.%20Il.%2011.751&lang=original| title=Iliad 10.751}}{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=eu%29rukreiwn&la=greek#lexicon| title=Εὐρυκρείων}} and Helikonios anax ({{lang|grc|Ἑλικώνιος ἄναξ}}), "lord of Helicon or Helike" [https://www.perseus.tufts.edu/hopper/text?doc=Perseus:abo:tlg,0012,001:20:404&lang=original Iliad 20.404]. In Helike of Achaia he was specially honoured.{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=%28Elikw%2Fnios&la=greek#lexicon| title=Ἑλικώνιος}} Anax is identified in Mycenaean Greek (Linear B) as wa-na-ka, a title of Poseidon as king of the underworld. Aeschylus uses also the epithet anax {{cite web| url=https://www.perseus.tufts.edu/hopper/text?doc=Perseus:abo:tlg,0085,004:131&lang=original| title=Seven against Thebes 131}} and Pindar the epithet Eurymedon ({{lang|grc|Εὐρυμέδων}}) "widely ruling".{{cite web| url=https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.04.0072%3Aentry%3Deu)rume%2Fdwn| title=εὐρυμέδων }}

File:DSC00363_-_Mosaico_delle_stagioni_(epoca_romana)_-_Foto_G._Dall'Orto.jpg, Palermo).]]

Some of the epithets (or adjectives) applied to him like Enosigaios ({{lang|grc|Ἐνοσίγαιος}}), Enosichthon ({{lang|grc|Ἐνοσίχθων}}) (Homer) and Ennosidas ({{lang|grc|Ἐννοσίδας}}) (Pindar), mean "earth shaker".Diedrich [https://books.google.com/books?id=rgWHB3QMB3sC&pg=185 p. 185 n. 305] These epithets indicate his chthonic nature, and have an older evidence of use, as it is identified in Linear B, as {{lang|gmy|𐀁𐀚𐀯𐀅𐀃𐀚}}, E-ne-si-da-o-ne.{{cite web |url=http://www.csun.edu/~hcfll004/mycen.html |title=Mycenaean Divinities |access-date=2 September 2006 |work=List of Handouts for Classics 315 |first=John Paul |last=Adams |archive-url=https://web.archive.org/web/20181001091024/http://www.csun.edu/~hcfll004/mycen.html |archive-date=1 October 2018 |url-status=live }} Other epithets that relate him with the earthquakes are Gaieochos ({{lang|grc|Γαιήοχος}}) {{cite web| url=https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3Dgaih%2Foxos| title=Γαιήοχος}} and Seisichthon ({{lang|grc|Σεισίχθων}}) {{LSJ|seisi/xqwn|σεισίχθων}}

The god who causes the earthquakes is also the protector against them, and he had the epithets Themeliouchos ({{lang|grc|Θεμελιούχος}}) "upholding the foundations",{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=qemeliou/xos&la=greek#lexicon| title=θεμελιούχος}} Asphaleios ({{lang|grc|Ἀσφάλειος}}) "securer, protector" {{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=asfa%2Fleios&la=greek#lexicon| title=ἀσφάλειος.}} with a temple at Tainaron.{{cite web| url=https://www.cs.uky.edu/~raphael/sol/sol-entries/tau/206| title=Suda, tau, 206}} Pausanias describes a sanctuary of Poseidon near Sparta beside the shrine of Alcon, where he had the surname Domatites ({{lang|grc|Δωματίτης}}), "of the house"{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=dwmati%2Fths&la=greek#lexicon| title=δωματίτης}}Pausanias, [http://www.perseus.tufts.edu/hopper/text? doc=Paus.+3.14.7&fromdoc=Perseus%3Atext%3A1999.01.0160:book=:chapter=&highlight=Poseidon3.14.7 3.14.7]

File:Pelike, red figure, 440-430 BC, Poseidon surprises Anymone, AM Agrigento, 121098.jpg Painter, 440-430 BC. Archaeological Museum of Agrigento]]

Homer uses for Poseidon the title Kyanochaites ({{lang|grc|Κυανοχαίτης}}), "dark-haired, dark blue of the sea".{{LSJ|kuanoxai/ths|Κυανοχαίτης}}{{cite web| url=https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0134%3Abook%3D20%3Acard%3D144| title=Iliad 20.144}} Epithets like Pelagios ({{lang|grc|Πελάγιος}}) "of the open sea",{{LSJ|pela/gios|πελάγιος}}Nilsson Vol I p.449 Aegeus ({{lang|grc|Αἰγαίος}}), "of the high sea" {{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=aigai%2Fos&la=greek#lexicon| title=Aἰγαίος}} in the town of Aegae in Euboea, where he had a magnificent temple upon a hill,Strabo, ix. p. 405Virgil, Aeneid iii. 74, where Servius erroneously derives the name from the Aegean Sea{{cite book |last=Schmitz |first=Leonhard |contribution=Aegaeus |editor-last=Smith |editor-first=William |title=Dictionary of Greek and Roman Biography and Mythology |volume=1 |page=24 |place=Boston |publisher=Little, Brown, and Company |year=1867 |contribution-url= http://www.ancientlibrary.com/smith-bio/0033.html |title-link=Dictionary of Greek and Roman Biography and Mythology }} Pontomedon ({{lang|grc|Ποντομέδων}}),{{LSJ|pontome/dwn|ποντομέδων}}" lord of the sea" (Pindar, Aeschylus) and Kymothales ({{lang|grc|Κυμοθαλής}}), "abounding with waves",{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=kumoqalh%2Fs&la=greek#lexicon| title=κυμοθαλής}} indicate that Poseidon was regarded as holding sway over the sea. Other epithets that relate him with the sea are, Porthmios ({{lang|grc|Πόρθμιος}}), "of strait, narrow sea" at Karpathos,{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=po%2Frqmios&la=greek#lexicon| title=πόρθμιος}} Epactaeus ({{lang|grc|Ἐπακταῖος}}) "god worshipped on the coast", in Samos,{{Cite DGRBM|author=Leonhard Schmitz |title=Epactaeus |url= https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.04.0104:entry=epactaeus-bio-1&highlight=epactaeus |short=}} Alidoupos, ({{lang|grc|Ἀλίδουπος}}) "sea resounding".{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=)ali/doupos&la=greek#lexicon| title=Ἀλίδουπος}} The master of the sea who can cause devastating storms is also the protector of seafarers and he was given the epithet sōtēr ({{lang|grc|Σωτήρ}}), "savior".

His symbol is the trident and he has the epithet Eutriaina ({{lang|grc|Εὐτρίαινα}}), "with goodly trident" (Pindar).{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=eutri/aina&la=greek#Perseus:text:1999.04.0057:entry=eu)tri/aina-contents| title=εὐτρίαινα}} The god of the sea is also the god of fishing, and tuna was his attribute. At Lampsacus they offered fishes to Poseidon and he had the epithet phytalmios ({{lang|grc|φυτάλμιος}}) Nilsson Vol I p.451,452 His epithet Phykios ({{lang|grc|Φύκιος}}), "god of seaweeds" at Mykonos,{{LSJ|fu/kios|φύκιος}} seems to be related with fishing. He had a fest where women were not allowed, with special offers also to Poseidon Temenites ({{lang|grc|Τεμενίτης}}) "related to an official domain ".{{cite web| url=https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3Dtemeni%2Fths| title=Τεμενίτης}} At the same day they made offers to Demeter Chloe therefore Poseidon was the promotor of vegetation. He had the epithet phytalmios ({{lang|grc|φυτάλμιος}}) at Myconos, Troizen, Megara and Rhodes, comparable with Ptorthios ({{lang|grc|Πτόρθιος}}) at Chalcis.{{LSJ|futa/lmios|φυτάλμιος}}{{LSJ|pto/rqios| πτόρθιος}}.

File:Poseidon Polybotes Louvre F226.jpg, 540-530 BC, ca. 540 BC–530 BC. Louvre, Paris.]]

Poseidon had a close association with horses. He is known under the epithet Hippios ({{lang|grc|Ἵππειος}}), "of a horse or horses" usually in Arcadia. He had temples at Lycosura, Mantineia, Methydrium, Pheneos, Pallandion.{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=)/ippeios&la=greek#lexicon| title=ἲππειος}}Nilsson Vol I p.448

At Lycosura he is related with the cult of Despoina.Pausanias [https://www.perseus.tufts.edu/cgi-bin/ptext?lookup=Paus.+8.37.1 8.37.9–10] The modern sanctuary near Mantineia was built by Emperor Hadrian.{{cite web| url=https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0160%3Abook%3D8%3Achapter%3D10%3Asection%3D2| title=Pausanias 8.10.3}} In Athens on the hill of horses there was the altar of Poseidon Hippios and Athena Hippia. The temple of Poseidon was destroyed by Antigonus when he attacked Attica.{{cite web| url=https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0160%3Abook%3D1%3Achapter%3D30%3Asection%3D4| title=Pausanias 1.30.4}} He is usually the tamer of horses (Damaios,{{lang|grc|Δαμαίος}} at Corinth),{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=damai%2Fos&la=greek#Perseus:text:1999.04.0057:entry=*damai=os-contents| title=Δαμαῖος}} and the tender of horses Hippokourios {{lang|grc|Ἱπποκούριος}}) at Sparta, where he had a sanctuary near the sanctuary of Artemis Aiginea.{{cite web| url=https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0160%3Abook%3D3%3Achapter%3D14%3Asection%3D2| title=Pausanias 3.14.2}}{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=ippokou/rios&la=greek#lexicon| title=Ἱπποκούριος}} In some myths he is the father of horses, either by spilling his seed upon a rock or by mating with a creature who then gave birth to the first horse. In Thessaly he had the title Petraios {{lang|grc|Πετραἵος}}, "of the rocks".{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=petrai%2Fos&la=greek#lexicon| title=Πετραῖος}} He hit a rock and the first horse "Skyphios" appeared.Nilsson Vol I p. 447 He was closely related with the springs, and with the strike of his trident, he created springs. He had the epithets Krenouchos ({{lang|grc|Κρηνούχος}}), "ruling over springs",{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=krhnou/xos&la=greek#lexicon| title=κρηνούχος}} and nymphagetes ({{lang|grc|Νυμφαγέτης}}) "leader of the nymphs" " Oceanus is the primeval water, the origin of all springs and rivers" : Nilsson Vol I p.450 On the Acropolis of Athens he created the saltspring Sea of Erechtheus ({{lang|grc|Ἐρεχθηίς θάλασσα}}).{{cite web| url=https://www.perseus.tufts.edu/hopper/text?doc=Apollod.+3.14.1&fromdoc=Perseus%3Atext%3A1999.01.0022:book=3:chapter=14&highlight=Erechtheis| title=Apollodorus 3.14.1}} Many springs like Hippocrene and Aganippe in Helikon are related with the word horse (hippos). (also Glukippe, Hyperippe). He is the father of Pegasus, whose name is derived from {{lang|grc|πηγή}}, (pēgē) "spring".Nilsson Vol I p.450-451

File:Poseidon Penteskouphia Louvre CA452.jpg]]

Epithets like Genesios {{lang|grc|Γενέσιος}} at Lerna{{LSJ|gene/sios|γενέσιος}}{{cite web| url=https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0160%3Abook%3D2%3Achapter%3D38%3Asection%3D4| title=Pausanias 2.38.4}} Genethlios ({{lang|grc|Γενέθλιος}}) "of the race or family" {{LSJ|gene/qlios|γενέθλιος}} Phratrios ({{lang|grc|Φράτριος}}) "of the brotherhood",{{cite web| url=https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3Dfra%2Ftrios| title=φράτριος}} and Patrigenios ({{lang|grc|Πατριγένειος}}) Nilsson Vol I p.452 indicate his relation with the genealogy trees and the brotherhood.

Other epithets of Poseidon in local cults are Epoptes ({{lang|grc|Ἐπόπτης}}), "overseer, watcher" at Megalopolis,{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=e%29po%2Fpths&la=greek#lexicon| title=ἐπόπτης}} Empylios ({{lang|grc|Ἐμπύλιος}}), "at the gate " at Thebes,{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=)empu/lios&la=greek#lexicon| title=ἐμπύλιος}} Kronios ({{lang|grc|Κρόνιος }}){{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=kro%2Fnios&la=greek#lexicon| title=Κρόνιος}} (Pindar) and semnos ({{lang|grc|σεμνός}}), "august, holy"{{cite web| url=https://www.perseus.tufts.edu/hopper/morph?l=semno%2Fs&la=greek#lexicon| title=σεμνός }} (Sophocles).

Some of Poseidon's epithets are related to festivals and athletic games including racing. At Corinth the Isthmian games was an athletic and music festival in honour of the god who had the epithet Isthmios ({{lang|grc|Ἴσθμιος}}). At Sparta there was the race in Gaiaochō. ({{lang|grc|ἐν Γαιαόχῳ}}) [https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0160%3Abook%3D3%3Achapter%3D21%3Asection%3D8 Pausanias 3.21.8].Nilsson Vol I p.446- 448 Poseidon Gaiēochos ({{lang|grc|Γαιήοχος}}) had a temple near the city beside an Hippodrome.contest at Sparta : [https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3Dgaih%2Foxos Γαάοχοι] At Mantineia and Pallandion in Arcadia the Hippokrateia ({{lang|grc|Ἱπποκράτεια}}) were athletic games in honour of Poseidon Hippeios ({{lang|grc|Ιππειος}}). At Ephesus there was a fest "Tavria" and he had the epithet Taureios ({{lang|grc|Tαύρειος}}), "related with the bull".{{LSJ|tau/reios|ταύρειος}}

File:Terracotta amphora (jar) MET DP117049.jpg (victory). Terracotta Attic amphora by the Syracuse Painter, one of the last to decorate an amphora, 470-460 BC. Metropolitan Museum of Art, Manhattan, NY]]

Many festivals all over Greece, in the Ionic cities and in Italy were celebrated in honour of Poseidon.

• Corinth: The Panhellenic Isthmian Games were celebrated in honour of Poseidon. His sanctuary is to be seen in the context of the position of Corinth controlling the sea. The festival included athletic and musical competitions and horseracing. Traditionally the games were established in the Bronze Age over the dead prince Palaimon.Jeffery, The city states, p.152
• Athens: Poseidon had a fest in the month Poseidaon. He was worshipped as the "master of the sea".
• Athens: Haloa was a fest of vegetation. The wine- fest Protrygaia belonged to Dionysus and to Poseidon as a god of vegetation.
• Mycale in Ionia: Mycale was a promontory, between Samos and Miletus. The representatives of twelve cities (dodekapolis) celebrated the Panionia (of all the Ionians), a festival of Poseidon Helikonios. Traditionally the first settlers landed in this place. The temple became the meeting place of the Ionian League). Homer describes the sacrifice of a bull to Poseidon, during the festival.
• Ephesus in Ionia. The relation of Poseidon with the bull is stronger in Ionia. The fest Tauria was celebrated in honour of Poseidon Taureios and the capbearers were called tauroi (bulls).
• Kalaureia: Poseidon was the patron god of the Amphictiony of Kalaureia. The festival was celebrated in honour of the god. The famous temple was the meeting place of the representatives of the members (Amphiktiones).Thomas Kelly, "The Calaurian Amphictiony" American Journal of Archaeology 70.2 (April 1966:113–121).
• Tainaron: The famous festival Tainaria was celebrated in honour of Poseidon. The participants were called Tainarioi.[https://www.perseus.tufts.edu/hopper/morph?l=tainaron&la=greek#lexicon Ταιναρον] The sacred sanctuary of the god was built in a cave in the Tainaron peninsula.[https://tainaron-blue.com/the-temple-of-poseidon/ Temple of Poseidon Tainaron] A filial cult existed in Sparta.

File:Poseidon Louvre G377.jpg]]

• Onchestos in Boeotia. Poseidon had a famous temple praised by Homer in the Catalogue of Ships, with the surname Helikonios. It became the place of meeting of the second Boeotian league. The peculiar fest included horseracing. At the beginning of the race the charioteers jumped down and made a prayer to Poseidon to protect them if the chariot would fall in the sacred grove.
• Sparta; Poseidon was worshipped with the surname Gaiaochos (carrying the earth or moving under the earth). There was the race Gaiaochoi and the temple was built beside an Hippodrome.
• Helike in Achaea: The city is mentioned in Homers Catalogue of Ships.[http://www.perseus.tufts.edu/hopper/text?doc=Hom.+Il.+2.575&fromdoc=Perseus%3Atext%3A1999.01.0134 Iliad 2.575] The temple and the festival of Poseidon Helikonios was Panhellenic. It was the place of meeting of the Achaean League.The city was destroyed by a tsunami in 370 BC.
• Epidauros: A fest in the month Poseidios was celebrated in honour of Poseidon. He was worshipped as the "master of the sea".
• Helos : The fest Pohoidaia was celebrated in honour of Poseidon. The festival included athletic games and competitions.
• Thuria: The fest Pohoidaia was celebrated in honour of Poseidon. It included athletic games and competitions.

File:Sozopol Archaeological Museum IMG 4149.JPG Archaeological Museum. Poseidon in the middle.]]

• Mantineia in Arcadia: Poseidon was worshipped with the surname Hippios (of the horse). The fest included the athletic games Hippokrateia. The temple was holy and the entrance into the cella was not allowed.
• Pallandion in Arcadia : Poseidon had the epithet Hippios (of the horse) and the fest included the athletic games Hippokrateia.
• Thronium: Thronium was the chief city of Ancient Locris and is mentioned by Homer in the Catalogue of Ships.[http://www.perseus.tufts.edu/hopper/text?doc=Hom.+Il.+2.533&fromdoc=Perseus%3Atext%3A1999.01.0134 Iliad 2.533] The name of a month in the city was Hippios.[https://www.perseus.tufts.edu/hopper/morph?l=(ippei/os&la=greek#lexicon ιππειος]
• Lesbos: A festival in the month Poseidios was celebrated in honour of Poseidon. He was worshipped as the "master of the sea".
• Myconos: In a fest he was worshipped as a god of fishing and women were not allowed. Chloe (Demeter) received offerings in the same fest, indicating that Poseidon was also god of vegetation.
• Tinos: A great fest called Poseidonia was celebrated in honour of Poseidon. The temple included great banquet halls, indicating the large number of the participants.[https://www.perseus.tufts.edu/hopper/text?doc=Perseus:abo:tlg,0099,001:10:5:11&lang=original Strabo 10.5.11] Poseidon was worshipped as a healer-god.

File:Archaic Temple at Isthmia, Greece.jpg, Greece (Assumed reconstruction)]]

The Corinthians are considered to be the inventors of the Doric order. However Corinth was completely destroyed and rebuilt and there is not sufficient evidence for the existence of earliest Doric Greek temples in the city.N.Spivey (1997), Greek art, Phaidon Press Limited, p. 61. A building constructed in early 7th century BC c.690-650 BC at Isthmia near Corinth which was later dedicated to Poseidon, is considered a pioneering building featuring Doric architecture.Gebhard, Elizabeth R. and Hemans, Frederick P. University of Chicago Excavations at Isthmia, 1989: I. Hesperia, Volume 61, Number 1 (January 1992), pp. 1–77, page 25. It seems that the first temple with pure Doric elements was built with the aid of Corinthians at Thermon in Aetolia in the middle of 7th century BC century. c.640-630 BC. It was a peripteral narrow wooden structure dedicated to Apollo,N.Spivey, p.111-112 It measured 12.13 X38.23 m at the stylobate and the number of pteron columns was 5X15.Robertson (1945), Greek and Roman architecture, pp. 66,324

In the earlier temples the peripteral colonnade is treated with a freedom unknown to later Doric architects. This is in part an especially western feature (in Italy) because the hexastyle scheme was adoptedRobertson, p.73 as in the temple of Poseidon at Taranto and the second temple of Hera at Paestum (traditionally named temple of Poseidon). In the earlier temples where the number of the columns in the porch is odd, so are the columns of the pteron facade. In such temples the side ptera are approximately the width of one or two intercolumniations.Thermon: one column in the porch, five columns on the facade. "Basilica" (Paestum): three columns on the potch, nine columns in the pteron facade :Robertson, p.73 In the hexastyle scheme like the temple of Poseidon at Sounion, there are normally two or four columns in the porch and the side ptera are approximately the width of one intercolumniation.Paestum, second temple of Hera: two columns in the porch. Sounion: two columns in the porch. In Doric early work the distance between column and column differs on the fronts and on the flanksRobertson, p.75 and this can be observed in the temple of Poseidon at Kalaureia and in Basilica at Paestum. After the 6th century the rule in Doric is an approximate equality of intercolumniations and it can be observed in the temple of Poseidon at Sounion, where there is a slight difference.

• Isthmia. The temple dedicated later to the god Poseidon was probably built in early 7th century BC c.690-650 BC in the city Isthmia near Corinth and it had a wooden peristyle. The building was completely destroyed in 470 BC and it seems that it was one of the pioneering buildings featuring Doric architecture. The ground plan showed a temple that was of epic proportions for its time and of a layout that was almost entirely new,Salmon, J. B. 1984. Wealthy Corinth: A History of the City to 338 BC. Oxford: Clarendon Press, page 61. however there was no evidence for the employment of the Doric style as it was suggested Gebhard, Elizabeth on 'The Evolution of a Pan-Hellenic Sanctuary: From Archaeology towards History at Isthmia.' pp. 154–177 in: Marinatos, Nanno (ed.) and Hägg, Robin (ed.). 1993. Greek Sanctuaries: New Approaches. London: Routledge, page 160.

File:Plan of the Temple of Poseidon at Paestum.png, Paestum (traditionally temple of Poseidon)]]

• Paestum, on the west coast of Italy near Naples. The Greek name of the city was Poseidonia. The Doric temple was built in the early 6th century BC and it was believed that it was a temple of Poseidon. Traditionally this name is associated with the 5th century BC temple at Paestum, however recent excavations indicate that both temples were dedicated to Hera. The so-called Basilica measured 24,5 X54,3 m at the stylobate and the number of pteron columns was 9x18.Robertson pp.75-76,325 The temple is wider than most Greek temples it had two doors. This may indicate a dual dedication of the temple.{{Cite web |url=http://www.paestum.org.uk/temples/basilica/ |title="The early temple of Hera, known as the 'Basilica'" |access-date=2016-02-26 |archive-date=2019-03-07 |archive-url=https://web.archive.org/web/20190307173816/http://www.paestum.org.uk/temples/basilica/ |url-status=dead }}
• A Doric temple the so-called temple of Poseidon was built in the first half of the 5th century BC and is usually placed later than Parthenon. The temple measured 24,3 X 60,00 m at the stylobate. It was an hexastyle structure and the number of pteron columns was 6X14.Robertson, pp. 136,327 The temple was also used to worship Zeus and another deity, whose identity is unknown.

File:Sounionplan.jpgplan-Temple of Poseidon]]

• Taranto, a city of Magna Graecia in Italy. Τhe temple of Poseidon was a perpiteral Doric temple, however its exact plan cannot be outlined. It was probably built in the 6th century BC and it seems that the number of pteron columns was 6X13. The interval of the remaining columns is 3.72 m, indicating that the maximum dimensions of the temple at the stylobate could be 22,32X 47,46 m.
• Sounion in Attica. The first temple of Poseidon (formerly called temple of Athena) was built in 490 BC and it was destroyed by the Persians before completion. It measured 13,12 X30,34 m at the stylobate and the number of pteron columns was 6X13. There is a slight difference between the front and back intercolumniations and those of the flanks. There was probably a double row of inner columns. (close wall, engaged). The cella with porches and adyta measured c.9.00 X21,20m Robertson, p. 327
• The second temple was built in 425 BC and it was modelled on its predecessor. It measured 13.48 X 31.15 m at the stylobate and the number of pteron columns was 6X13. An Ionic frieze carried across pteron and continued round interior of each end of pteron.Robertson, pp. 115,328 The cella with porches and adyta measured c.9.00 X21,20m. The temple probably contained, at one end facing the entrance, a colossal, bronze statue of Poseidon.W. Burkert, Greek Religion (1987).

File:Architectural Terracotta Sanctuary of Poseidon Kalaureia 1.JPG]]

• Kalaureia, an island close to the coast of Troezen in the Peloponnese, part of the modern island-pair Poros. Early roof tiles from c.650 BC suggest the existence of a precursor to the Late Archaic temple of Poseidon. This Doric temple was probably built in the middle of the 6th century BC, constructed mainly of poros stone. It measured 14,50 X27,00 m at the stylobate and the number of the pteron columns was 6X12. Both front and back intercolumniations were wider than those on the flanks. The building was surrounded by a low wall with the main entrance on the east side.{{Cite web|title=KalaureiaKalaureia, Poros (1894 and 1997– ongoing) - Kalaureia, Poros (1894 and 1997– ongoing)|url=https://www.sia.gr/en/articles.php?tid=329|access-date=2021-11-19|website=Swedish Institute at Athens|language=en}}

File:Temple of Poseidon, Hermione (14125507562).jpg]]

• Hermione in Argolis.The most remarkable temple in the time of Pausanias was the temple of Poseidon.[http://www.perseus.tufts.edu/hopper/text?doc=Paus.+2.34.10&fromdoc=Perseus%3Atext%3A1999.01.0160 Pausanias 2.34.10] The temple was built in the Late archaic-Early classical period, in the late 6th century BC. It was completely destroyed and its foundations at the peninsula of Bisti (Poseidio) indicate that the temple measured approximately 15,00 X30,00 m at the stylobate.[https://www.sia.gr/el/sx_PrintPage.php?tid=446 Swedish Institute p.446]
• Tainaron .The sacred sanctuary of Poseidon was built in a cave at the Tainaron peninsula. The path to the interior, carved into the rock, was preparing him who wanted to get into the psychopompeion. It also functioned as a necromancy and oneiromancy temple. The temple was also established as a place for persecuted who fled there for protection.
• Tinos, an island of Cyclades. The temple of Poseidon and Amphitrite was built near a beach of the island, in the 4th century BC (Hellenistic period). It was a peripteral Doric temple, which was reconstructed in the 3rd century BC. The temple was made of local marble and had some representations of the god's symbols, such as dolphins and the trident.[https://www.greeka.com/cyclades/tinos/sightseeing/sanctuary-poseidon/ Temple of Poseidon Tinos]

File:Mosaique de Neptune au musée de Sousse, septembre 2013.jpg, Medina, Tunesia]]

In the standard version, Poseidon was born to the Titans Cronus and Rhea, the fifth child out of six, born after Hestia, Demeter, Hera and Hades in that order.Hesiod, Theogony [http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0130%3Acard%3D453 453-455]; Hard, [https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA67 p. 67]. Because Poseidon's father was afraid that one of his children would overthrow him like he had done to his own father, Cronus devoured each infant as soon as they were born. Poseidon was the last one to suffer this fate before Rhea decided to deceive Cronus and whisk the sixth child, Zeus, away to safety, after offering Cronus a rock wrapped in a blanket to eat.{{sfn|Hard|2004|page=[https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA68 68]}} Once Zeus was grown, he gave his father a powerful emetic that made him gorge up the children he had eaten. The five children emerged from their father's belly in reverse order, making Poseidon both the second youngest child and the second oldest at the same time. Armed with a trident forged for him by the Cyclopes, Poseidon with his siblings and other divine allies defeated the Titans and became rulers in their place.{{sfn|Grimal|1987|loc=s.v. [https://archive.org/details/dictionaryofclas00grim/page/115/mode/2up?view=theater Cronus]}} According to Homer and Apollodorus, Zeus, Poseidon and the third brother Hades then divided the world between them by drawing lots; Zeus got the sky, Poseidon the sea, and Hades the Underworld.Homer, Iliad [https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0134%3Abook%3D15%3Acard%3D184 15.184-93] {{Webarchive|url=https://web.archive.org/web/20190511082132/http://www.perseus.tufts.edu/hopper/text? |date=11 May 2019 }})

File:Andrea Doria as Neptun by Angelo Bronzino.jpg, by Angelo Bronzino .1540-1530, Pinacoteca di Brera, Milan]]

In a rarer - and later- version, Poseidon avoided being devoured by his father as his mother Rhea saved him in the same manner she did Zeus, by offering Cronus a foal instead, claiming she had given birth to a horse instead of a god, while she had actually laid the child in a flock.In the 2nd century AD, a well with the name of Arne, the "lamb's well", in the neighbourhood of Mantineia in Arcadia, where old traditions lingered, was shown to Pausanias. (Pausanias, [https://www.perseus.tufts.edu/hopper/text.jsp?doc=Paus.+.8.8.2&fromdoc=Perseus%3Atext%3A1999.01.0160 8.8.2]) Rhea entrusted her infant to a spring nymph. When Cronus demanded the child, the nymph ArneTzetzes ad Lycophron 644 denied having him, and her spring thereafter was called Arne (which bears resemblance to the Greek word for 'deny').{{sfn|Kerenyi|1951|page=[https://archive.org/details/in.gov.ignca.7346/page/n205/mode/2up?view=theater 182]}}

In another tale, Rhea gave Poseidon to the Telchines, ancient inhabitants of the island of Rhodes;Diodorus Siculus, [https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Diodorus_Siculus/5D*.html 5.55] Capheira, an Oceanid nymph, became the young god's nurse.{{sfn|Grimal|1987|pages=[https://archive.org/details/dictionaryofclas00grim/page/387/mode/2up?view=theater 387-388]}} As Poseidon grew, he fell in love with Halia, the beautiful sister of the Telchines, and fathered six sons and one daughter, Rhodos, on her.{{sfn|Kerenyi|1951|pages=[https://archive.org/details/in.gov.ignca.7346/page/n207/mode/2up?view=theater 183-184]}}{{sfn|Grimal|1987|pages=[https://archive.org/details/dictionaryofclas00grim/page/387/mode/2up?view=theater 387-388]}} By that time Aphrodite, the goddess of love, had been born and risen from the sea, and attempted to make a stop at Rhodes on her way to Cyprus. Poseidon and Halia's sons denied her hospitality, so Aphrodite cursed them to fall in love and rape Halia. After they had done so, Poseidon made them sink below the sea.{{sfn|Kerenyi|1951|pages=[https://archive.org/details/in.gov.ignca.7346/page/n207/mode/2up?view=theater 183-184]}}

In Homer's Odyssey, Poseidon has a home in Aegae.Homer, Odyssey [https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0136%3Abook%3D5%3Acard%3D365 5.380]

Poseidon broke off a piece of the island of Kos called Nisyros, and threw it on top of Polybotes (Strabo also relates the story of Polybotes buried under Nisyros but adds that some say Polybotes lies under Kos instead).

File:Athena Poseidon Cdm Paris DeRidder222.jpg (identified with inscriptions). Black-figure vaise painting by Amasis Painter, 540 BC. BnF Museum (Cabinet des médailles), Paris]]

Athena became the patron goddess of the city of Athens after a competition with Poseidon. Yet Poseidon remained a numinous presence on the Acropolis in the form of his surrogate, Erechtheus. At the dissolution festival at the end of the year in the Athenian calendar, the Skira, the priests of Athena and the priest of Poseidon would process under canopies to Eleusis.Burkert 1983, pp. 143–149.

They agreed that each would give the Athenians one gift and the Athenians would choose whichever gift they preferred. Poseidon struck the ground with his trident and a spring sprang up; the water was salty and not very useful, but represented his true gift - the access to trade. Athens at its height was a significant sea power, defeating the Persian fleet at the Battle of Salamis.{{sfn|Graves|1960|page=62}}

For her part, Athena offered an olive tree. The Athenians or their king, Cecrops, accepted the olive tree and along with it Athena as their patron, for the olive tree brought wood, oil and food. After the fight, infuriated at his loss, Poseidon sent a monstrous flood to the Attic Plain, to punish the Athenians for not choosing him. The depression made by Poseidon's trident and filled with salt water was surrounded by the northern hall of the Erechtheum, remaining open to the air.

File:Athena Poseidon Louvre CA7426.jpg, Paris.]]

Burkert noted :"In cult, Poseidon was identified with Erechtheus" and "the myth turns this into a temporal-causal sequence: in his anger at losing, Poseidon led his son Eumolpus against Athens and killed Erectheus."

It was also said that Poseidon in his anger over his defeat sent one of his sons, Halirrhothius, to cut down Athena's tree gift. But as Halirrhothius swung his axe, he missed his aim and it fell in himself, killing him instantly. Poseidon in fury accused Ares of murder, and the matter was eventually settled on the Areopagus ("hill of Ares") in favour of Ares, which was thereafter named after the event.Servius On Virgil's Georgics [https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A2007.01.0092%3Abook%3D1%3Acommline%3D18 1.18]; scholia on Aristophanes's Clouds 1005{{sfn|Wunder|1855|page=[https://books.google.com/books?id=4grgAAAAMAAJ&pg=RA2-PA100, note on verse 703]}} In other versions, Halirrhothius raped Alcippe, Ares's daughter, so Ares slew him. Poseidon was enraged over the murder of his son, and Ares was thus held in hold, which eventually acquitted him.Apollodorus, [https://www.perseus.tufts.edu/hopper/text?doc=Apollod.+3.14.2&fromdoc=Perseus%3Atext%3A1999.01.0022:book=3:chapter=14&highlight=Euryte 3.14.2]

The contest of Athena and Poseidon was the subject of the reliefs on the western pediment of the Parthenon, the first sight that greeted the arriving visitor.

This myth is construed by Robert Graves and others as reflecting a clash between the inhabitants during Mycenaean times and newer immigrants. Athens at its height was a significant sea power, at one point defeating the Persian fleet at Salamis Island in a sea battle.

File:Villa Carmiano Triclinio 1 (cropped).jpg, fresco in Stabiae, Italy, 1st century AD]]

The Corinthians had a similar story to the foundations of Athens, about their own city Corinth. According to the myth, Helios and Poseidon clashed, both desiring to make the city their own. Their dispute was brought to one of the Hecatoncheires, Briareos, an elder god, who was thus tasked to settle the fight between the two gods. Briareus decided to award the Acrocorinth to Helios, while to Poseidon he gave the isthmus of Corinth.Fowler 1988, p. 98 n. 5; Pausanias, [http://data.perseus.org/citations/urn:cts:greekLit:tlg0525.tlg001.perseus-eng1:2.1.6 2.1.6] & [http://data.perseus.org/citations/urn:cts:greekLit:tlg0525.tlg001.perseus-eng1:2.4.6 2.4.6] In this tale, Helios and Poseidon are supposed to represent fire versus water.Dio Chrysostom, Discourses [https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Dio_Chrysostom/Discourses/37*.html#p13 37.11–12] Helios, as the sun god, received the area that is closest to the sky, while Poseidon, who is the sea god, got the isthmus by the sea.Grummond and Ridgway, p. [https://books.google.com/books?id=sKT6M2rdN9gC&pg=PA69 69], "Helios' higher position would correspond to the sun's location in the sky versus Poseidon's lower venue in the sea, opposite Demeter on land."

At another time, Poseidon came to an agreement with the goddess Leto that he would give her the island of Delos, the birthplace of her twins Artemis and Apollo, in exchange for the island of Calauria; he also exchanged Delphi for Taenarum with Apollo. A temple of Poseidon stood at Calauria during ancient times.Strabo, Geographica [https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0239%3Abook%3D8%3Achapter%3D6%3Asection%3D14 8.6.14]

Poseidon came to dispute with his sister Hera over the city of Argos. A local king was chosen to settle the matter, Phoroneus, and he decided to award the city to Hera, who then became its patron goddess.{{sfn|O'Brien|1993|page=[https://books.google.com/books?id=a77yKM26GfYC&pg=PA144 144]}} Poseidon was enraged, and sent a drought to plague the city. One day, as an Argive woman named Amymone went out in search of water, came upon a satyr who tried to rape her. Amymone prayed to Poseidon for help, and he scared the satyr away with his trident.{{sfn|Grimal|1987|page=[https://archive.org/details/dictionaryofclas00grim/page/39/mode/2up?view=theater 40]}} After Poseidon rescued Amymone from the lecherous satyr he fathered a child on her, Nauplius.Hyginus, Fabulae [https://topostext.org/work/206#169 169].

File:Getty Villa - Collection (5304703605).jpg, Malibu, California]]

Poseidon fathered the hero Theseus with the Troezenian princess Aethra. Theseus was also said to be the son of Aegeus, the king of Athens, who slept with Aethra on the very same night. Thus Theseus's origins included both the human and the divine element.{{sfn|Grimal|1987|page=[https://archive.org/details/dictionaryofclas00grim/page/445/mode/2up?view=theater 446]}}{{sfn|Walker|1995|page=[https://books.google.com/books?id=qiNwJ_s2_dAC&pg=PA85 85]}}

Meanwhile, in Crete, Zeus's son Minos asked for Poseidon's help in order to certify his claim on the throne of Crete. Poseidon offered Minos a splendid white bull, with the understanding that he was to sacrifice the bull to Poseidon later. The Cretans were so impressed with the bull and the divine sign itself that Minos was declared king of Crete.{{sfn|Grimal|1987|page=[https://archive.org/details/dictionaryofclas00grim/page/291/mode/2up?view=theater 291]}}{{sfn|Hard|2004|page=[https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA67 67]}} But wishing to keep the beautiful animal for himself, Minos instead sacrificed an ordinary bull to the sea-god instead of the agreed upon one.{{sfn|Hard|2004|page=[https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA67 67]}}

Poseidon, enraged, caused Minos's wife, Pasiphae, to fall in love with the bull; their coupling produced the Minotaur, a half-bull half-human creature who fed on human flesh.{{sfn|Grimal|1987|page=[https://archive.org/details/dictionaryofclas00grim/page/291/mode/2up?view=theater 291]}}{{sfn|Hard|2004|page= [https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA67 67]}} Minos concealed him within the labyrinth built by Daedalus, and fed to him Athenian men and women he forced Aegeus to send him over.{{sfn|Hard|2004|page=[https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA68 68]}}

Once Theseus was grown up and recognized by Aegeus as his son, he decided to end the bloody tax Athens had to pay to Crete once and for all, and volunteered to set sail to Crete along with the other Athenian youths who had been chosen to be devoured by the Minotaur.{{sfn|Rose|1974|page=[https://archive.org/details/godsheroesofgree0000rose_j8e9/page/82/mode/2up?view=theater 82]}}

Once he arrived in Crete, Minos insulted Theseus and insisted he was no son of Poseidon; to demonstrate so, he threw his own ring in to the sea, and commanded Theseus to retrieve it, expecting he would not be able to do so.{{sfn|Ogden|2017|page=[https://books.google.com/books?id=-M8oDwAAQBAJ&pg=PA41 41]}} Theseus immediately dove in after it.

File:Gaziantep Zeugma museum Daedalus and Icarus mosaic in 2019 4054.jpg seated on a throne receives the wooden cow from Daidalos. Eros plays with the head of the crafted cow. Roman Mosaic, from Zeugma, Commagene. Zeugma Mosaic Museum, Gaziantep, Turkey]]

Dolphins then came as guides and escorted him to the halls of Poseidon's palace, where he was warmly welcomed.{{sfn|Williams|Clare|2022|pages=[https://books.google.com/books?id=8W6cEAAAQBAJ&pg=PA161 160-161]}} He received the ring, and in addition a purple wedding cloak and a crown from the Nereid Amphitrite, to prove his words. Theseus then emerged from the sea and gave the ring to Minos.{{sfn|Williams|Clare|2022|page=[https://books.google.com/books?id=8W6cEAAAQBAJ&pg=PA162 162]}} Theseus killed the Minotaur, and in time succeeded his father Aegeus as king of Athens. By an Amazon he had a son, Hippolytus, while his wife Phaedra (Minos' daughter) gave him two sons.

At some point, Poseidon promised three favours to Theseus, and he called upon Poseidon to fulfill one of those when Phaedra falsely accused Hippolytus of forcing himself on her.{{sfn|Williams|Clare|2022|page=[https://books.google.com/books?id=8W6cEAAAQBAJ&pg=PA139 139]}} Theseus, not knowing the truth, asked his father to destroy Hippolytus; Poseidon granted his son's wish, and as Hippolytus was driving by the sea, Poseidon sent a terrifying sea monster to spook the man's horses, which then dragged him to his death.{{sfn|Williams|Clare|2022|page=[https://books.google.com/books?id=8W6cEAAAQBAJ&pg=PA139 139]}}{{sfn|Walker|1995|page=[https://books.google.com/books?id=qiNwJ_s2_dAC&pg=PA114 114]}}

Poseidon and Apollo, having offended Zeus by their rebellion in Hera's scheme, were temporarily stripped of their divine authority and sent to serve King Laomedon of Troy. He had them build huge walls around the city and promised to reward them with his immortal horses, a promise he then refused to fulfill. In vengeance, before the Trojan War, Poseidon sent a sea monster to attack Troy. The monster was later killed by Heracles.{{Cite book |last=Ogden |first=Daniel |url= |title=The Oxford Handbook of Heracles |date=2021 |publisher=Oxford University Press |isbn=978-0-19-065098-8 |pages=210 |language=en}}

File:Sea thiasos Amphitrite Poseidon Glyptothek Munich 239 front n3.jpg depicting the wedding of Poseidon and Amphitrite, from the Altar of Domitius Ahenobarbus in the Field of Mars, bas-relief, Roman Republic, 2nd century BC]]

Poseidon was said to have had many lovers of both sexes. His consort was Amphitrite, an ancient sea-goddess and nymph, daughter of Nereus and Doris. In one account, attributed to Eratosthenes, Poseidon wished to wed Amphitrite, but she fled from him and hid with Atlas. Poseidon sent out many to find her, and it was a dolphin who tracked her down. The dolphin persuaded Amphitrite to accept Poseidon as her husband, and eventually took charge of their wedding. Poseidon then put him among the stars as a reward for his good services.Hyginus, Astronomica [https://topostext.org/work/207#2.17.1 2.17.1] Oppian says that the dolphin betrayed Amphitrite's whereabouts to Poseidon, and he carried off Amphitrite against her will to marry her.Oppian, Halieutica [https://archive.org/details/in.ernet.dli.2015.233333/page/n323/mode/2up?view=theater 1.38] Together they had a son named Triton, a merman.Hesiod, Theogony [https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0130%3Acard%3D901 930–933]

A mortal woman named Cleito once lived on an isolated island; Poseidon fell in love with the human mortal and created a dwelling sanctuary at the top of a hill near the middle of the island and surrounded the dwelling with rings of water and land to protect her. She gave birth to five sets of twin boys; the firstborn, Atlas, became the first ruler of Atlantis.

Poseidon had an affair with Alope, his granddaughter through Cercyon, his son and King of Eleusis, begetting Hippothoon. Cercyon had his daughter buried alive but Poseidon turned her into the local spring.Hard, [https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA344 p. 344]

File:Herculaneum (39517858542).jpg]]

Poseidon was the father of many heroes. He is thought to have fathered the famed Theseus, Bellerophon, Alebion and Bergion. Not all of Poseidon's children were human, though. His other children include the giants Otos and EphialtaePolyphemus (the Cyclops) and, finally, Amycus was the son of Poseidon and the Bithynian nymph Melia.Apollonius Rhodius, 2.1 ff. & 2.94 ff. with scholia The philosopher Plato was held by his fellow ancient Greeks to have traced his descent to the sea-God Poseidon through his father Ariston and his mythic predecessors the demigod kings Codrus and Melanthus.Great Books of the Western World, Plato's Dialogues. Biographical NoteDiogenes Laertius Plato 1

Poseidon engaged in homesexual relationships as welll. He took the young Nerites, the son of Nereus and Doris (and thus brother to Amphitrite) as a lover. Nerites was also Poseidon's charioteer, and impressed all marine creatures with his speed. But one day the sun god, Helios, turned Nerites into a shellfish. Aelian, who recorded this tale as told by mariners, says it is not clear why Helios did this, but theorizes he might have been offended somehow, or that he and Poseidon were rivals in love, and Helios wanted Nerites to travel among the constellations instead of the sea-monsters. From the love between Poseidon and Nerites was born Anteros, mutual love.{{Cite web |title=Aelian : On Animals, 14 |url=http://www.attalus.org/translate/animals14.html#28 |access-date=2023-01-11 |website=www.attalus.org}}

Other male lovers of Poseidon included Pelops and Patroclus.Ptolemy Hephaestion, New History, 1 in Photius, 190

File:Lakonian Black-Figure Kylix; detached fragments.jpg from underneath, while Pegasus strikes the monster with his hooves. Laconian Black Figure Kylix attributed to Boreads Painter, 570–565 B.C. J. Paul Getty Museum Malibu, California.]]

In an archaic myth, Poseidon once pursued Demeter. She spurned his advances, turning herself into a mare so that she could hide in a herd of horses; he saw through the deception and became a stallion, captured and raped her.Pausanias, [http://data.perseus.org/citations/urn:cts:greekLit:tlg0525.tlg001.perseus-eng1:8.25.5 8.25.5] Their child was a horse, Arion, which was capable of human speech.Pausanias, [http://data.perseus.org/citations/urn:cts:greekLit:tlg0525.tlg001.perseus-eng1:8.25.7 8.25.7]

According to Hesiod's Theogony, Poseidon "lay down in a soft meadow among spring flowers" with the Gorgon Medusa and two offspring, the winged horse Pegasus and the warrior Chrysaor, were born when the hero Perseus cut off Medusa's head.Theogony 270–281 (Most, [https://www.loebclassics.com/view/hesiod-theogony/2018/pb_LCL057.25.xml pp. 24, 25]), where Poseidon is referred to as the "dark-haired one".Ovid however says that Medusa was originally a very beautiful maiden whom Poseidon raped inside the temple of Athena. Athena, furious over the sacrilege, changed the beautiful girl into a monster.Ovid, Metamorphoses [https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.02.0028%3Abook%3D4%3Acard%3D706 4.794–803] Elsewhere in the Metamorphoses, Ovid says that Poseidon seduced Medusa in the form of a bird.Ovid, Metamorphoses [https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.02.0028%3Abook%3D6%3Acard%3D87 6.134]

When Zeus fell in love and pursued the goddess Asteria, she transformed into a quail and flung herself into the sea to escape being raped by him. Poseidon then, equally rapacious, picked up the chase where Zeus had left it and chased Asteria with the aim to force himself on her, so Asteria had to transform for a second time to save herself, this time into a small rocky island named Delos.{{cite book |last1=Kramer Richards |first1=Arlene |url=https://books.google.com/books?id=VUdaDwAAQBAJ |title=Myths of Mighty Women: Their Application in Psychoanalytic Psychotherapy |last2=Spira |first2=Lucille |date=2015 |publisher=Karnac Books Ltd. |isbn=9781782203049 |location=New York, NY |page=[https://books.google.com/books?id=VUdaDwAAQBAJ&pg=PT80 80]}}File:Lattanzio Gambara (c. 1530-Brescia 1574) - Neptune and Caenis - RCIN 401218 - Royal Collection.jpgOne day, Poseidon spotted Caenis walking by the seashore, caught her and raped her. Having enjoyed her greatly, he offered her a wish, any wish. Traumatized, Caenis wished to be transformed into a man, so that she would never experience assault again. Poseidon fulfilled her request and changed her into a male warrior, who then took the name Caeneus.Ovid, Metamorphoses [https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.02.0028%3Abook%3D12%3Acard%3D146 12.195-199]; Apollodorus, [https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0022%3Atext%3DEpitome%3Abook%3DE%3Achapter%3D1%3Asection%3D22 Epitome.1.22]

A mortal woman named Tyro was married to Cretheus (with whom she had one son, Aeson), but loved Enipeus, a river god. She pursued Enipeus, who refused her advances. One day, Poseidon, filled with lust for Tyro, disguised himself as Enipeus, and from their union were born the heroes Pelias and Neleus, twin boys.Smith, [https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.04.0104%3Aalphabetic+letter%3DT%3Aentry+group%3D26%3Aentry%3Dtyro-bio-1 s.v. Tyro]

Another time Poseidon once fell in love with a Phocian woman, Corone, the daughter of Coronaeus as she was walking along the shore. He attempted to court her, but she rejected him, and ran away. Poseidon then chased her down with the aim to rape her. Athena, witnessing all that, took pity in the girl and changed her into a crow.Ovid, Metamorphoses 2.569-88

The following is a list of Poseidon's offspring, by various mothers. Beside each offspring, the earliest source to record the parentage is given, along with the century to which the source (in some cases approximately) dates.

{{Family tree of the Olympians|title=Poseidon's family tree|collapsed=yes|cap_pose=y}}

File:Neptune - Joseph Kuhn-Régnier.jpg

In Greek art, Poseidon lives in a palace on the ocean floor, made of coral and gems. He rides a chariot that is pulled by a hippocampus or by horses that could ride on the sea. He was associated with dolphins and three-pronged fish spears (tridents).

A hymn to Poseidon included among the Homeric Hymns is a brief invocation, a seven-line introduction that addresses the god as both "mover of the earth and barren sea, god of the deep who is also lord of Mount Helicon and wide Aegae,The ancient palace-city that was replaced by Vergina and specifies his twofold nature as an Olympian: "a tamer of horses and a saviour of ships".

In the Iliad, Poseidon favors the Greeks, and on several occasions takes an active part in the battle against the Trojan forces. However, in Book XX, he rescues Aeneas after the Trojan prince is laid low by Achilles.File:JacobdeGheynII-NeptuneandAmphitrite.jpg (late 1500s)]]In the Odyssey, Poseidon is notable for his hatred of Odysseus who blinded the sea-god's son, the Cyclops Polyphemus, resulting in Poseidon punishing him with storms, causing the complete loss of his ship and his numerous of his companions. The enmity of Poseidon prevents Odysseus's return home to Ithaca for ten years. Odysseus is even told, notwithstanding his ultimate safe return, that to placate the wrath of Poseidon will require one more voyage on his part. After Odysseus left the island of Calypso, Poseidon, in anger, let loose all four of the Anemoi to cause a storm and raise great waves in order to attempt to drown him.{{sfn|Hard|2004|page=[https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA100 100]}}

In the Aeneid, Neptune is still resentful of the wandering Trojans, but is not as vindictive as Juno, and in Book I he rescues the Trojan fleet from the goddess's attempts to wreck it, although his primary motivation for doing this is his annoyance at Juno's having intruded into his domain.

File:Jason and the Argonauts (1963) Poseidon.png]]

Due to his status as a Greek god, Poseidon has made multiple appearances in modern and popular culture.

Poseidon appeared in the 1963 film Jason and the Argonauts.{{Citation |last=Chaffey |first=Don |title=Jason and the Argonauts |date=1963-06-19 |url=https://www.imdb.com/title/tt0057197/ |type=Action, Adventure, Family |access-date=2023-09-18 |others=Todd Armstrong, Nancy Kovack, Gary Raymond |publisher=Charles H. Schneer Productions}}

Poseidon appears in the Percy Jackson & the Olympians novel series, where he is the father of the demigod protagonist Percy Jackson. In the first film adaptation, Percy Jackson & the Olympians: The Lightning Thief, he is portrayed by Kevin McKidd.{{Citation |last=Columbus |first=Chris |title=Percy Jackson & the Olympians: The Lightning Thief |date=2010-02-12 |url=https://www.imdb.com/title/tt0814255/ |type=Adventure, Family, Fantasy |publisher=Fox 2000 Pictures, 1492 Pictures, Sunswept Entertainment |access-date=2022-09-10}}{{Citation |last=Freudenthal |first=Thor |title=Percy Jackson: Sea of Monsters |date=2013-08-07 |url=https://www.imdb.com/title/tt1854564/ |type=Adventure, Family, Fantasy |publisher=Fox 2000 Pictures, TSG Entertainment, Sunswept Entertainment |access-date=2022-09-10}}

Poseidon has made multiple appearances in video games, such as in God of War 3 by Sony. In the game, Poseidon appears as a boss for the player to defeat.{{Cite web |date=2020-04-10 |title=God Of War: 15 Gods Kratos Took Down & How He Did It |url=https://www.thegamer.com/god-war-gods-kratos-killed-how-murdered-them/ |access-date=2022-04-14 |website=TheGamer |language=en-US}} In the video game Hades, he is a character who will grant "boons".{{Cite web |last=Plante |first=Corey |title=1 single boon in 'Hades' transforms Excalibur into the ultimate weapon |url=https://www.inverse.com/gaming/hades-excalibur-build-hoarding-slash |access-date=2023-01-11 |website=Inverse |date=17 October 2020 |language=en}}

File:Neptúnova fontána.jpg, Slovakia.]]

The following is a (non-exhaustive) list of pre-modern tellings and retellings of myths relating to Poseidon:

• Homer, Odyssey, 11.567 (7th century BC)
• Pindar, Olympian Odes, 1 (476 BC)
• Sophocles, Electra, 504 (430 – 415 BC) & Oenomaus, Fr. 433 (408 BC)
• Euripides, Orestes, 12–16, 1024-1062 (408 BC)
• Bibliotheca Epitome 2: 1–9 (140 BC)
• Diodorus Siculus, Histories, 4.73 (1st century BC)
• Ovid, Metamorphoses, VI: 213, 458 (AD 8);
• Hyginus, Fables, 82: Tantalus, 83: Pelops, 84: Oenomaus & Poetic Astronomy, ii (1st century AD)
• Pausanias, Description of Greece, 2.22.3, 5.1.3–7, 5.13.1, 6.21.9, 8.14.10–11 (c. AD 160 – 176)
• Philostratus the Elder Imagines, I.30: Pelops (AD 170 – 245)
• Philostratus the Younger, Imagines, 9: Pelops (c. 200 – 245)
• First Vatican Mythographer, 22: Myrtilus; Atreus et Thyestes
• Second Vatican Mythographer, 146: Oenomaus

File:Poseidon Penteskouphia Louvre CA452.jpg|Poseidon holding a trident. Corinthian plaque, 550-525 BC. From Penteskouphia.

File:Poseidon enthroned De Ridder 418 CdM Paris n2.jpg|Poseidon on an Attic kalyx krater (detail), first half of the 5th century BC.

File:Affreschi romani - nettuno anfitrine - pompei.JPG|Poseidon and Amphitrite. Ancient Roman fresco (50-79 AD), Pompeii, Italy.

File:Mosaique de sol avec le triomphe de Neptune et son épouse Amphitrite (Louvre, Ma 1880)1.jpg|Triumph of Poseidon and Amphitrite showing the couple in procession, detail of a vast mosaic from Cirta, Roman Africa (ca. 315–325 AD, now at the Louvre)

File:Poseidon and Athena battle for control of Athens - Benvenuto Tisi da Garofalo (1512).jpg|Poseidon and Athena battle for control of Athens by Benvenuto Tisi(1512)

File:MillesPoseidon.jpg|Poseidon statue in Gothenburg, Sweden.

File:Neptun v prešovskej fontane.jpg|Poseidon statue in Prešov, Slovakia

File:Poseidon.statue.arp.500pix.jpg|Poseidon statue in Bristol, England.

File:Neptun brunnen1.jpg|The Neptunbrunnen fountain in Berlin

File:Poseidon sculpture Copenhagen 2005.jpg|Poseidon sculpture in Copenhagen, Denmark

{{Portal|Ancient Greece|Myths|Religion}}

• Amphitrite
• Despoina
• Demeter
• Erechtheus
• Family tree of the Greek gods
• Ionian League
• Panionium – Ionian festival to Poseidon
• Trident of Poseidon
• Linear B

{{Reflist|30em|refs=

{{citation|last=Smith|first=>Steven D. |title=Art, Nature, Power: Garden Epigrams from Nero to Heraclius |editor1=Maria Kanellou |editor2=Ivana Petrovic |editor3=Chris Carey |editor-link3=Chris Carey |work=Greek Epigram from the Hellenistic to the Early Byzantine Era |publisher=Oxford University Press |year=2019 |url=https://books.google.com/books?id=St-RDwAAQBAJ&pg=PA348 |pages=348 |isbn=978-0-192-57379-7}}

}}

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{{refend}}

• {{Commons-inline}}
• [http://www.theoi.com/Olympios/Poseidon.html Theoi.com: Poseidon]
• [http://www.maicar.com/GML/Poseidon.html GML Poseidon]
• [http://www.csun.edu/~hcfll004/mycen.html Gods found in Mycenaean Greece]; a table drawn up from Michael Ventris and John Chadwick, Documents in Mycenaean Greek second edition (Cambridge 1973)
• [https://iconographic.warburg.sas.ac.uk/category/vpc-taxonomy-000153 The Warburg Institute Iconographic Database (images of Poseidon)]

{{Twelve Olympians}}

{{Greek religion}}

{{Greek mythology (deities)}}

{{Authority control}}

Category:Animal gods

Category:Children of Cronus

Category:Drought gods

Category:Earth gods

Category:Extramarital relationships

Category:Nature gods

Category:Sea and river gods

Category:Water gods

Category:Sky and weather gods

Category:Deities in the Iliad

Category:Mythological rapists

Category:Twelve Olympians

Category:LGBTQ themes in Greek mythology

Category:Greek sea gods

Category:Odyssean gods

Category:Metamorphoses characters

Category:Kings in Greek mythology

Category:Consorts of Aphrodite

Category:Consorts of Demeter

Category:Consorts of Gaia

Category:Horse deities

Category:Shapeshifters in Greek mythology