His parents died when he was a baby and he grew up with his aunt, uncle, and cousin. He lived in the cupboard under the stairs and his relatives were really mean to him. He lived with them until he was eleven, when he found out he had magic.
After he found out he had magic, he went to Hogwarts School of Witchcraft and Wizardry to learn how to use his magic. He made some friends, Ron and Hermione.
First year: saved Sorcerer's stone and won a bunch of points for his house, Gryffindor, so they won the house cup.
Second year: saved Ron's little sister and stabbed a possessed diary
Fourth year: had to compete in a tournament against three other kids who were older than him and more skilled.
fifth year: Snuck out of school with his friends and went to the Ministry of Magic, where his godfather died.