Birth
When Zeus' wife Hera discovered that Leto was pregnant and that Zeus was the father, she banned Leto from giving birth on "terra firma". In her wanderings, Leto found the newly created floating island of Delos, which was neither mainland nor a real island. She gave birth there and was accepted by the people, offering them her promise that her son would be always favourable toward the city. Afterwards, Zeus secured Delos to the bottom of the ocean. This island later became sacred to Apollo.
It is also stated that Hera kidnapped Eileithyia, the goddess of childbirth, to prevent Leto from going into labor. The other gods tricked Hera into letting her go by offering her a necklace,8 metres long, of amber. Mythographers agree that Artemis was born first and then assisted with the birth of Apollo, or that Artemis was born one day before Apollo, on the island of Ortygia and that she helped Leto cross the sea to Delos the next day to give birth to Apollo. Apollo was born on the seventh day of the month Thargelion —according to Delian tradition—or of the month Bysios—according to Delphian tradition. The seventh and twentieth, the days of the new and full moon, were ever afterwards held sacred to him.
It is also stated that Hera kidnapped Eileithyia, the goddess of childbirth, to prevent Leto from going into labor. The other gods tricked Hera into letting her go by offering her a necklace,8 metres long, of amber. Mythographers agree that Artemis was born first and then assisted with the birth of Apollo, or that Artemis was born one day before Apollo, on the island of Ortygia and that she helped Leto cross the sea to Delos the next day to give birth to Apollo. Apollo was born on the seventh day of the month Thargelion —according to Delian tradition—or of the month Bysios—according to Delphian tradition. The seventh and twentieth, the days of the new and full moon, were ever afterwards held sacred to him.
Healer and god-protector from evil
The function of Apollo as a "healer" is connected with Paean, the physician of the Gods in the Iliad, who seems to come from a more primitive religion. Paeοn is probably connected with the Mycenean Pa-ja-wo, but the etymology is the only evidence. He did not have a separate cult, but he was the personification of the holy magic-song sung by the magicians that was supposed to cure disease. Later the Greeks knew the original meaning of the relevant song "paean". The magicians were also called "seer-doctors", and they used an ecstatic prophetic art which was used exactly by the god Apollo at the oracles.
In the Iliad, Apollo is the healer under the gods, but he is also the bringer of disease and death with his arrows, similar to the function of the terrible Vedic god of disease Rudra. He sends a terrible plague to the Achaeans. The god who sends a disease can also prevent from it, therefore when it stops they make a purifying ceremony and offer him an "hecatomb" to ward off evil. When the oath of his priest appeases, they pray and with a song they call their own god, the beautiful Paean.
Homer illustrated Paeon the god, and the song both of apotropaic thanksgiving or triumph. Such songs were originally addressed to Apollo, and afterwards to other gods: to Dionysus, to Apollo Helios, to Apollo's son Asclepius the healer. About the 4th century BCE, the paean became merely a formula of adulation; its object was either to implore protection against disease and misfortune, or to offer thanks after such protection had been rendered. It was in this way that Apollo had become recognised as the god of music. Apollo's role as the slayer of the Python led to his association with battle and victory; hence it became the Roman custom for a paean to be sung by an army on the march and before entering into battle, when a fleet left the harbour, and also after a victory had been won.
In the Iliad, Apollo is the healer under the gods, but he is also the bringer of disease and death with his arrows, similar to the function of the terrible Vedic god of disease Rudra. He sends a terrible plague to the Achaeans. The god who sends a disease can also prevent from it, therefore when it stops they make a purifying ceremony and offer him an "hecatomb" to ward off evil. When the oath of his priest appeases, they pray and with a song they call their own god, the beautiful Paean.
Homer illustrated Paeon the god, and the song both of apotropaic thanksgiving or triumph. Such songs were originally addressed to Apollo, and afterwards to other gods: to Dionysus, to Apollo Helios, to Apollo's son Asclepius the healer. About the 4th century BCE, the paean became merely a formula of adulation; its object was either to implore protection against disease and misfortune, or to offer thanks after such protection had been rendered. It was in this way that Apollo had become recognised as the god of music. Apollo's role as the slayer of the Python led to his association with battle and victory; hence it became the Roman custom for a paean to be sung by an army on the march and before entering into battle, when a fleet left the harbour, and also after a victory had been won.