When Percy was still an infant, his father Poseidon left, as is usual of the gods, leaving Sally to raise Percy on her own. He was named after the famous Greek hero Perseus by his mother for good luck because his namesake was one of the few heroes who had a happy ending and died a peaceful death. Perseus 'Percy' Jackson was born on August 18th, 1993, to Poseidon, the Greek god of the seas, storms, and the creator of horses, and Sally Jackson, a mortal who could see through the Mist. Percy accidentally summoned a water hand to pull the school bully into a fountain, and then killed his teacher, who turned out to be a Fury.

2.5.3 Percy Jackson and the Sword of Hades.2.5.2 Percy Jackson and the Bronze Dragon.2.5.1 Percy Jackson and the Stolen Chariot.