All names for Voldemort. Raised and orphan after his father left and his mother died at childbirth. Tom Riddle was in the Hogwarts house Slytherin, and happens to be a descendant of Slytherin. Hagrid, also a student at Hogwarts, was expelled after Tom accused him of opening the Chamber of Secrets. Tom Riddle then took on the name of Voldemort. He became an evil wizard. Killing hundreds. People began calling him you-know-who because they feared him so they couldn't even speak his name. Voldemort killed Lily & James Potter because they would not join him. He even tried to kill baby Harry, but could not. His powers became weak and he went into hiding. Thus begans the tale of 'Harry Potter and the Sorcerer's Stone.

Tom Riddle's Dying Diary