Percy Jackson is the demigod son of Poseidon and the mortal Sally Jackson. He was born on May 3, 1998, and lived in New York City for most of his life. In March of 2011, he was attacked by a Fury on a school field trip alongside his friend Jason Grace. The two were then told they were demigods and moved to Camp Half-Blood for their safety and training. Because he was born in spite of his father's oath on the River Styx, Zeus believed that he was the one who stole his Master Bolt from Olympus. Because of that, Percy led a quest with his friends Jason and Annabeth Chase to retrieve the bolt and prevent war.