Pythia in the context of "Orestes"

Religious practices in ancient Greece encompassed a collection of beliefs, rituals, and mythology, in the form of both popular public religion and cult practices. The application of the modern concept of "religion" to ancient cultures has been questioned as anachronistic. The ancient Greeks did not have a word for 'religion' in the modern sense. Likewise, no Greek writer is known to have classified either the gods or the cult practices into separate 'religions'. Instead, for example, Herodotus speaks of the Hellenes as having "common shrines of the gods and sacrifices, and the same kinds of customs".

Most ancient Greeks recognized the twelve major Olympian gods and goddesses—Zeus, Hera, Poseidon, Demeter, Athena, Ares, Aphrodite, Apollo, Artemis, Hephaestus, Hermes, and either Hestia or Dionysus—although philosophies such as Stoicism and some forms of Platonism used language that seems to assume a single transcendent deity. The worship of these deities, and several others, was found across the Greek world, though they often have different epithets that distinguished aspects of the deity, and often reflect the absorption of other local deities into the pan-Hellenic scheme.

Delphi (/ˈdɛlfaɪ, ˈdɛlfi/; Greek: Δελφοί [ðelˈfi]), in legend previously called Pytho (Πυθώ), was an ancient sacred precinct in central Greece. It was the seat of Pythia, the major oracle who was consulted about important decisions throughout the ancient classical world. The ancient Greeks considered the centre of the world to be in Delphi, marked by the stone monument known as the Omphalos of Delphi. The term omphalos was the Greek word for "navel".

According to the Suda, Delphi took its name from the Delphyne, the she-serpent (drakaina) who lived there and was killed by the god Apollo (in other accounts the serpent was the male serpent (drakon) Python).

Apollo is one of the Olympian deities in ancient Greek and Roman religion, as well as Greek and Roman mythology. Apollo has been recognized as a god of archery, music and dance, truth and prophecy, healing and diseases, the Sun and light, poetry, and more. One of the most important and complex of the Greek gods, he is the son of Zeus and Leto, and the twin brother of Artemis, goddess of the hunt. He is considered to be the most beautiful god and is represented as the ideal of the kouros (ephebe, or a beardless, athletic youth). Apollo is known in Greek-influenced Etruscan mythology as Apulu.

As the patron deity of Delphi (Apollo Pythios), Apollo is an oracular god—the prophetic deity of the Delphic Oracle and the deity of ritual purification. His oracles were often consulted for guidance in various matters. He was in general seen as the god who affords help and wards off evil, and is referred to as Alexicacus, the "averter of evil". Medicine and healing are associated with Apollo, whether through the god himself or mediated through his son Asclepius. Apollo delivered people from epidemics, yet he is also a god who could bring ill health and deadly plague with his arrows. The invention of archery itself is credited to Apollo and his sister Artemis. Apollo is usually described as carrying a silver or golden bow and a quiver of arrows.

The Temple of Apollo, also known as Apollonion, (Greek: Ἀπολλώνιον, romanized: Apollṓnion) was a major part of the Panhellenic religious sanctuary located in Central Greece at Delphi. The temple and sanctuary at large were dedicated to one of the major Greek deities, Apollo, the god of archery, music, light, prophecy, the arts, and healing. There have been several temples built at Delphi throughout the history of the site, though the visible ruins seen in modernity are those of the temple built in the 4th century B.C.E. before its destruction under the orders of Theodosius I in 390 C.E.. During antiquity, the temple was home to the famous Greek prophetess the Pythia, or the Oracle of Delphi, making the Temple of Apollo and the sanctuary at Delphi a major Panhellenic religious site as early as the 8th century B.C.E., and a place of great importance at many different periods of ancient Greek history. References to Delphi, the sanctuary, the temple, and the prophecies of the Pythia are made throughout ancient Greek mythology and historical accounts from the periods of its use.

"I know that I know nothing" is a saying derived from Plato's account of the Greek philosopher Socrates: "For I was conscious that I knew practically nothing..." (Plato, Apology 22d, translated by Harold North Fowler, 1966). It is also sometimes called the Socratic paradox, although this name is often instead used to refer to other seemingly paradoxical claims made by Socrates in Plato's dialogues (most notably, Socratic intellectualism and the Socratic fallacy).

This saying is also connected or conflated with the answer to a question Socrates (according to Xenophon) or Chaerephon (according to Plato) is said to have posed to the Pythia, the Oracle of Delphi, in which the oracle stated something to the effect of "Socrates is the wisest person in Athens." Socrates, believing the oracle but also completely convinced that he knew nothing, was said to have concluded that nobody knew anything, and that he was only wiser than others because he was the only person who recognized his own ignorance.

Delphi Archaeological museum (Greek: Αρχαιολογικό Μουσείο Δελφών) is one of the principal museums of Greece and one of the most visited. It is operated by the Greek Ministry of Culture (Ephorate of Antiquities of Phocis). Founded in 1903, it has been rearranged several times and houses the discoveries made at the Panhellenic sanctuary of Delphi, which date from the Late Helladic (Mycenean) period to the early Byzantine era.

Organised in fourteen rooms on two levels, the museum mainly displays statues, including the famous Charioteer of Delphi, architectural elements, like the frieze of the Siphnian Treasury and ex votos dedicated to the sanctuary of Pythian Apollo, like the Sphinx of Naxos. The exhibition floor space is more than 2270 m, while the storage and conservation rooms (mosaics, ceramics and metals) take up 558 m. Visitors are also catered to by an entrance hall, a cafeteria and a gift shop.