
Delphi is an archaeological site and a modern town in Greece on the south-western spur of Mount Parnassus in a valley of Phocis. Delphi was the site of the Delphic oracle, most important oracle in the classical Greek world, and it was a major site for the worship of the god Apollo. His sacred precinct in Delphi was a Panhellenic sanctuary, where every four years athletes from all over the Greek world competed in the Pythian Games.
Delphi was revered throughout the Greek world as the site of the omphalos stone, the centre of the earth and the universe. In the inner hestia ("hearth") of the Temple of Apollo, an eternal flame burned. After the battle of Plataea, the Greek cities extinguished their fires and brought new fire from the hearth of Greece, at Delphi; in the foundation stories of several Greek colonies, the founding colonists were first dedicated at Delphi.
Delphi is located on a plateau on the slope of Mount Parnassus, next to the Sanctuary of Apollo, the site of the ancient Oracle. This semicircular spur is known as Phaedriades, and overlooks the Pleistos Valley. Southwest of Delphi, about 15 km away, is the harbor-city of Kirrha on the Corinthian Gulf.
The name Delphoi is connected with delph "hollow" or delphus "womb" and may indicate archaic veneration of Gaia, Grandmother Earth, the Earth Goddess at the site. Apollo is connected with the site by his epithet Delphinios, "the Delphinian", i.e. either "the one of Delphi", or "the one of the womb". The epithet is connected with dolphins (the "womb-fish") in the Homeric Hymn to Apollo (line 400), telling how Apollo first came to Delphi in the shape of a dolphin, carrying Cretan priests on his back. Another legend held that Apollo walked to Delphi from the north and stopped at Tempe, a city in Thessaly to pick laurel, a plant sacred to him (generally known in English as the bay tree). In commemoration of this legend, the winners at the Pythian Games received a wreath of laurel (bay leaves) picked in Tempe.
Delphi became the site of a major temple to Phoebus Apollo, as well as the Pythian Games and the famous prehistoric oracle. Even in Roman times hundreds of votive statues remained, described by Pliny the Younger and seen by Pausanias.
From a late myth that deviates from much older ones, when young, Apollo killed the chthonic serpent Python, named Pythia in older myths, but according to some later accounts his wife, Pythia, who lived beside the Castalian Spring, according to some because Python had attempted to rape Leto while she was pregnant with Apollo and Artemis. The bodies of the pair were draped around his Rod, which, with the wings created the caduceus symbolic of the god. This spring flowed toward the temple but disappeared beneath, creating a cleft which emitted vapors that caused the Oracle at Delphi to give her prophecies.
Apollo killed Python but had to be punished for it, since she was a child of Gaia. The shrine dedicated to Apollo was originally dedicated to Gaia and then, possibly to Poseidon. The name Pythia remained as the title of the Delphic Oracle. As punishment for this murder Apollo was sent to serve in menial tasks for eight years. A festival, the Septeria, was performed annually portraying the slaying of the serpent, the flight, the atonment and the return of the God. The Pythian Games took place every four years to commemorate his victory.
Erwin Rohde wrote that the Python was an earth spirit, who was conquered by Apollo, and buried under the Omphalos, and that it is a case of one deity setting up a temple on the grave of another.
Another view holds that Apollo was a fairly recent addition to the Greek pantheon coming originally from Lydia. The Etruscans coming from northern Anatolia also worshiped Apollo, and it may be that he was originally identical with Mesopotamian Aplu, an Akkadian title meaning "son", originally given to the plague God Nergal, son of Enlil. Apollo Smintheus the mouse killer eliminates mice, a primary cause of disease, hence he promotes preventive medicine. It is a popular misconception that the oracle predicted the future, based on the lapping water and leaves rustling in the trees; the oracle of Delphi never predicted the future, but gave guarded advice on how impiety might be cleansed and incumbent disaster avoided.
Delphi is perhaps best-known for the oracle at the sanctuary that became dedicated to Apollo during the classical period. With origins in prehistoric times and the worship of Gaia, in the last quarter of the 8th century BC there is a steady increase of artifacts found at the settlement site in Delphi. Pottery and bronze work as well as tripod dedications continue in a steady stream, in comparison to Olympia. Neither the range of objects nor the presence of prestigious dedications proves that Delphi was a focus of attention for worshipers of a wide range, but the strong representation of high value goods, found in no other mainland sanctuary, certainly encourages that view.
The priestess of the oracle at Delphi was known as the Pythia.
H.W. Parke writes that the foundation of Delphi and its oracle took place before the times of recorded history and its origins are obscure, but dating to the worship of the Great Goddess, Gaia.
The Oracle exerted considerable influence throughout the Greek world, and she was consulted before all major undertakings: wars, the founding of colonies, and so forth. She also was respected by the semi-Hellenic countries around the Greek world, such as Lydia, Caria, and even Egypt.
Famous Oracular Statements from Delphi
The Delphic Sibyl was a legendary prophetic figure who was said to have given prophecies at Delphi shortly after the Trojan War. The prophecies attributed to her circulated in written collections of prophetic sayings, along with the oracles of figures such as Bakis. The Sibyl had no connection to the oracle of Apollo, and should not be confused with the Pythia.
Occupation of the site at Delphi can be traced back to the Neolithic period with extensive occupation and use beginning in the Mycenaean period (1600-1100 B.C). Most of the ruins that survive today date from the most intense period of activity at the site in the 6th century BCE.

In the inner (hestia), or hearth, of the Temple of Delphic Apollo (Apollon Delphinios), an (eternal flame) burned. After the battle of Plataea, the Greek cities extinguished their fires and brought new fire from the hearth of Greece, at Delphi; in the foundation stories of several Greek colonies, the founding colonists were first dedicated at Delphi.

Creation
Apollo is connected with the site by his epithet 'Delphinios', 'the Delphinian', i.e. either "the one of Delphi", or "the one of the womb".
The epithet is connected with dolphins (the "womb-fish") in the Homeric Hymn to Apollo, telling how Apollo first came to Delphi in the shape of a dolphin, carrying Cretan priests on his back.
Greek legend recounts how Apollo chose Delphi as one of his chief places of worship, along with Delos. Greek mythology tells of a time when the gods of the sky overcame those of earth. Then the infant Apollo took control of Parnassus by killing Python, the dragon snake that had possessed it. Apollo took the form of a dolphin and swam out to sea to capture a group of sailors, whom he appointed the first priests of his cult.

Apollo spoke through his oracle, who had to be an older woman of blameless life chosen from among the peasants of the area. The sybyl or prophetess took the name Pythia and sat on a tripod seat over an opening in the Earth. When Apollo slew Python, its body fell into this fissure, according to legend, and fumes arose from its decomposing body. Intoxicated by the vapors, the sibyl would fall into trance, allowing Apollo to possess her spirit. In this state she prophesied. She spoke in riddles, which were interpreted by the priests of the temple, and people consulted her on everything from important matters of public policy to personal affairs.
Upon arriving at Delphi, the supplicants registered and paid a fee; when their appointments neared, they purified themselves at the Castalian Spring, where the bathing trough is still visible. They then proceeded along the Sacred Way, a zigzag flagstone walk up the hill. The Sacred Way was lined with statues and offerings, most of which have long disappeared, although a few surviving examples can be seen in the Delphi Museum. Also along the way were a series of treasuries, small shrines sponsored by various Greek cities as thank-offerings for important victories. The best perserved of these is the Athenian treasury, built in 490 BC to celebrate the Athenian victory at the Battle of Marathon. Because of its balance, harmony, and purity of line, it is regarded as the finest example of ancient Doric style.
The Sacred Way ended outside the temple. There the pilgrims would sacrifice a sheep or goat, whose entrails were examined by the priests for omens. Then the pilgrims entered one by one to ask the sibyl their question. A carved domed rock, the omphalos, or naval of the earth, was kept at the place of prophecy. In an ancient flood story about the human race, the omphalos was the first thing to emerge from the waters as they receeded. In another account, Zeus sent two ravens out from from the ends of the earth to find its center, and their beaks touched at the omphalos. The stone is presently kept in a museum.
The centerpiece of Delphi was the temple of Apollo, built with donations from every Greek city-state and from abroad. The base of the temple still stands, with half a dozen of the original columns. On the outside of the base are over 700 inscriptions, most announcing the emancipation of slaves, which was considered a special act of piety to be performed at Delphi. At the far end of the temple is the altar, originally decorated with memorials, ex-votos, statues, and offerings.
The myths said that during winter, when Apollo went to his other shrine at Delos, the slopes of Mount Parnassus became the playground of the god Pan, patron of fertility. Above and away from the shrine of Delphi is a grove that is difficult to reach, at the end of an ancient cobblestone trail called the Kalki Skala, or "evil stairway." Nearby are two pinnacles from which those convicted of sacrilege against the gods were thrown to their deaths. Also in the area is the Corycian Cave, sacred to Pan, and here each November ancient worship rituals involved drinking and sexual orgies took place. The contrast with the Delphic shrine is striking, and perhaps out of embarrassment, no attempt has been made either to publicize the place or to make it easy to visit. Pan's image in art -- half-man, half goat with horns -- was adopted in the Christian era as the image of the Devil.
Above the Temple of Apollo is an outdoor theater with 33 tiers of stone seats that held about 5,000 people. A stadium seating 7,000 nearby was used for the Phythian Games, held every four years to celebrate the victory of Athens over the Phoenicians, who had attacked Delphi and tried to seize its treasures. Several centuries later, when Rome conquered Greece and Athenian protection collapsed, the Emperor Nero looted 500 statues from the shrine. In the fourth century AD, Julian the Apostate, a Christian emperor who returned to paganism, ordered Delphi's restoration as part of his campaign to restore the ancient gods, but in a eerie scene, the oracle wailed but refused to prophesy. That event was considered a sign of the end, and by 390 AD the shrine was closed by the Christian Emperor Theodosis. Soon after the temple was razed.
Delphi was the site of a major temple to Phoebus Apollo, as well as the Pythian Games and a famous oracle. Even in Roman times hundreds of votive statues remained, described by Pliny the Younger and seen by Pausanias.
Theater

The Pythian Games were one of the four Panhellenic Games of Ancient Greece, a forerunner of the modern Olympic Games, held every four years at the sanctuary of Apollo at Delphi. They were held in honor of Apollo two years after (and two years before) each Olympic Games, and between each Nemean and Isthmian Games. They were founded sometime in the 6th century BC, and, unlike the Olympic Games, also featured competitions for music and poetry. The music and poetry competitions pre-dated the athletic portion of the games, and were said to have been started by Apollo after he killed Python and set up the oracle at Delphi. Otherwise, the athletic events were the same as the Olympic Games. A four-horse chariot race was held in a hippodrome in the plain, not far from the sea, in the place where the original stadium was. The winners received a wreath of bay laurels from the city of Tempe in Thessaly.
Charioteer of Delphi

The Pythian Games comprised a chariot race, thus this magnificent statue.

When young, Apollo killed the chthonic serpent Python, which lived beside the Castalian Spring, according to some because Python had attempted to rape Leto while she was pregnant with Apollo and Artemis. This was the spring which emitted vapors that caused the Oracle at Delphi to give her prophesies. Apollo killed Python but had to be punished for it, since Python was a child of Gaia. The shrine dedicated to Apollo was probably originally dedicated to Gaia and then Poseidon. The oracle at that time predicted the future based on the lapping water and leaves rustling in the trees.

Sibyl
The first oracle at Delphi was commonly known as Sibyl, though her name was Herophile. She sang her predictions, which she received from Gaia. Later, "Sibyl" became a title given to whichever priestess manned the oracle at the time. The Sibyl sat on the Sibylline Rock, breathing in vapors from the ground1 and gaining her often puzzling predictions from that. Pausanias claimed that the Sibyl was "born between man and goddess, daughter of sea monsters and an immortal nymph". Others said she was sister or daughter to Apollo. Still others claimed the Sibyl received her powers from Gaia originally, who passed the oracle to Themis, who passed it to Phoebe.