The name Appollyon can be translated as destroyer. Apollyon was the same name of the god of the Sun known to the Greeks, known as Apollo or Apollon. The god Apollo acted as the destroyer of evil, but he was also a bringer of doom. He was also known as the god of purification, who sees and hears all things because he was associated with the sun.
Apollo was also known as a god of prophecy, as many would bring their sacrifices to him at his temple at Delphi to have their oracle read. The Greeks received oracles from Apollo at Delphi for matters of daily life, and also for military purposes as well. For example, within the poetry of the Iliad, the god Apollo sends a plague of destruction on the Achaians which could only be stopped through prayers and sacrifices to Apollo2. The practice of offering sacrifices to Apollo lasted well into the third century, and in some places the cult of Apollo lasted until the 6th century CE. It was also known that Apollo had a holy day each seventh day of the month. The seventh day of each month is holy to Apollon, and, of course, the same tradition is used in the christian calendar where the 7th day is named after the sun [Sunday] and is considered holy, and as a day of rest
In Greek myth, Apollo was the son of Zeus, a sky-god and the Twin of Artemis, goddess of the hunt and of the moon. Just like Artemis, he carried a bow and arrow which he used to cause destruction. As the goddess Athena watched over Apollon at the battle of Troy, she titled Apollon as the Striker From Afar. This is similar to John's writing that tells how Apollyon is from a bottomless pit of destruction3. Apollo was known as the twin of Artemis and he had also been referred to as the Striker from Afar (Hymn to Apollon).
The public worship of Apollo in the Mediterranean was in direct competition with the development of Christianity during the time that John wrote revelations[?]. The use of the name Apollyon within the bible, as the 'Angel of the Pit' was a direct association with this Greek god Apollo as a Satan, an adversary to Christianity4