"Right. Genocide is a systematic attempt to kill off a group of people defined by something beyond their control, like race. The easiest example is race, but there’s also other stuff." I shake my head, getting back on track. "But anyway, he attacked the Potter family because they were some of the people fighting against him, but your parents managed to protect you with very old, powerful magic by sacrificing their lives, and his body was destroyed when he tried to kill you, though it left behind that scar on your forehead. The magical world then ends up thinking that you’re the one who beat him, and has taken to calling you the Girl-Who-Lived."