Tom Riddle Question
i was just wondering i have seen the second movie many times and i am upto the 4th book but one thing that still puzzles me is tom riddle. Even though after the second book he isnt really important i still am confused. Is Tom Riddle voldermort 50 years ago or something and then voldermort preserved him as a memory in the diary?? also what is the deal with the thing how he writes his name and it changed to lord voldermort?? does that mean voldermort used to be named tom riddle but changed his name because of its muggle origins?? if anyone is willing to answer this it would be very helpfull.
Thanks