Lily Eireen Evans (born January 30, 1960) was the youngest daughter of Christopher Evans and Cathleen Callahan, and the younger sister of Petunia Evans. She was a Muggle-born witch and, upon arriving at Hogwarts School of Witchcraft and Wizardry in 1971, was sorted into Gryffindor house. Lily discovered the magical world not from getting her Hogwarts letter like most Muggle-borns, but from her childhood friend Severus Snape. Both her and Snape grew up in the large, grimy town of Cokeworth and went to the same Muggle school. Snape, being the lonely child that he was, pursued a friendship when they were around nine years of age. Lily hestiated for a while, she didn't know what to think of the boy - she later became best friends with him, though, and they remained friends for a great deal of time.